The Vigil@nce team watches public vulnerabilities impacting your computers, and then offers security solutions, a database and tools to fix them.

Computer vulnerabilities of HP BSM

computer vulnerability CVE-2016-4392

HPE Business Service Management: Cross Site Scripting

Synthesis of the vulnerability

An attacker can trigger a Cross Site Scripting of HPE Business Service Management, in order to run JavaScript code in the context of the web site.
Impacted products: HPE BSM.
Severity: 2/4.
Consequences: client access/rights.
Provenance: document.
Creation date: 27/10/2016.
Identifiers: c05316329, CVE-2016-4392, HPSBGN03651, VIGILANCE-VUL-20975.

Description of the vulnerability

The HPE Business Service Management product offers a web service.

However, it does not filter received data before inserting them in generated HTML documents.

An attacker can therefore trigger a Cross Site Scripting of HPE Business Service Management, in order to run JavaScript code in the context of the web site.
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vulnerability bulletin CVE-2016-2183 CVE-2016-6329

Blowfish, Triple-DES: algorithms too weak, SWEET32

Synthesis of the vulnerability

An attacker can create a TLS/VPN session with a Blowfish/Triple-DES algorithm, and perform a two days attack, in order to decrypt data.
Impacted products: Avaya Ethernet Routing Switch, Blue Coat CAS, ProxySG par Blue Coat, SGOS by Blue Coat, Cisco ASR, Cisco Aironet, Cisco ATA, Cisco AnyConnect Secure Mobility Client, Cisco ACE, ASA, AsyncOS, Cisco Catalyst, Cisco Content SMA, Cisco ESA, IOS by Cisco, IOS XE Cisco, IOS XR Cisco, Cisco IPS, Nexus by Cisco, NX-OS, Cisco Prime Access Registrar, Prime Collaboration Assurance, Cisco Prime DCNM, Prime Infrastructure, Cisco Prime LMS, Cisco Router, Secure ACS, Cisco CUCM, Cisco Manager Attendant Console, Cisco Unified CCX, Cisco IP Phone, Cisco MeetingPlace, Cisco Wireless IP Phone, Cisco WSA, Cisco Wireless Controller, Debian, Avamar, VNX Operating Environment, VNX Series, Black Diamond, ExtremeXOS, Summit, BIG-IP Hardware, TMOS, Fedora, FileZilla Server, FortiAnalyzer, FortiAnalyzer Virtual Appliance, FortiGate, FortiGate Virtual Appliance, FortiOS, FreeRADIUS, hMailServer, HPE BSM, LoadRunner, HP Operations, Performance Center, Real User Monitoring, SiteScope, HP Switch, HP-UX, AIX, DB2 UDB, Informix Server, IRAD, Security Directory Server, Tivoli Directory Server, Tivoli Storage Manager, Tivoli System Automation, WebSphere MQ, Junos Space, McAfee Email Gateway, ePO, Data ONTAP 7-Mode, Snap Creator Framework, Nodejs Core, OpenSSL, openSUSE, openSUSE Leap, Oracle Communications, Oracle DB, Oracle Directory Server, Oracle Directory Services Plus, Oracle Fusion Middleware, Oracle GlassFish Server, Oracle Identity Management, Oracle iPlanet Web Server, Oracle OIT, Solaris, Tuxedo, Oracle Virtual Directory, WebLogic, Oracle Web Tier, SSL protocol, Pulse Connect Secure, Pulse Secure Client, Pulse Secure SBR, RHEL, JBoss EAP by Red Hat, SAS Add-in for Microsoft Office, SAS Analytics Pro, Base SAS Software, SAS Enterprise BI Server, SAS Enterprise Guide, SAS Management Console, SAS OLAP Server, SAS SAS/ACCESS, SAS SAS/AF, SAS SAS/CONNECT, SAS SAS/EIS, SAS SAS/ETS, SAS SAS/FSP, SAS SAS/GRAPH, SAS SAS/IML, SAS SAS/OR, SAS SAS/STAT, SAS SAS/Web Report Studio, SIMATIC, Slackware, Splunk Enterprise, stunnel, SUSE Linux Enterprise Desktop, SLES, Synology DS***, Synology RS***, Nessus, Ubuntu, WinSCP.
Severity: 1/4.
Consequences: data reading.
Provenance: internet client.
Number of vulnerabilities in this bulletin: 2.
Creation date: 25/08/2016.
Identifiers: 1610582, 1991866, 1991867, 1991870, 1991871, 1991875, 1991876, 1991878, 1991880, 1991882, 1991884, 1991885, 1991886, 1991887, 1991889, 1991892, 1991894, 1991896, 1991902, 1991903, 1991951, 1991955, 1991959, 1991960, 1991961, 1992681, 1993777, 1994375, 1995099, 1995922, 1998797, 1999054, 1999421, 2000209, 2000212, 2000370, 2000544, 2001608, 2002021, 2002335, 2002336, 2002479, 2002537, 2002870, 2002897, 2002991, 2003145, 2003480, 2003620, 2003673, 2004036, 2008828, 523628, 9010102, bulletinapr2017, c05349499, c05369403, c05369415, c05390849, CERTFR-2017-AVI-012, CERTFR-2019-AVI-049, CERTFR-2019-AVI-311, cisco-sa-20160927-openssl, cpuapr2017, cpujan2018, cpujul2017, cpujul2019, cpuoct2017, CVE-2016-2183, CVE-2016-6329, DSA-2018-124, DSA-2019-131, DSA-3673-1, DSA-3673-2, FEDORA-2016-7810e24465, FEDORA-2016-dc2cb4ad6b, FG-IR-16-047, FG-IR-16-048, FG-IR-17-127, FG-IR-17-173, HPESBGN03697, HPESBGN03765, HPESBUX03725, HPSBGN03690, HPSBGN03694, HPSBHF03674, ibm10718843, java_jan2017_advisory, JSA10770, KM03060544, NTAP-20160915-0001, openSUSE-SU-2016:2199-1, openSUSE-SU-2016:2391-1, openSUSE-SU-2016:2407-1, openSUSE-SU-2016:2496-1, openSUSE-SU-2016:2537-1, openSUSE-SU-2017:1638-1, openSUSE-SU-2018:0458-1, RHSA-2017:0336-01, RHSA-2017:0337-01, RHSA-2017:0338-01, RHSA-2017:3113-01, RHSA-2017:3114-01, RHSA-2017:3239-01, RHSA-2017:3240-01, RHSA-2018:2123-01, SA133, SA40312, SB10171, SB10186, SB10197, SB10215, SOL13167034, SP-CAAAPUE, SPL-129207, SSA:2016-266-01, SSA:2016-363-01, SSA-556833, SUSE-SU-2016:2387-1, SUSE-SU-2016:2394-1, SUSE-SU-2016:2458-1, SUSE-SU-2016:2468-1, SUSE-SU-2016:2469-1, SUSE-SU-2016:2470-1, SUSE-SU-2016:2470-2, SUSE-SU-2017:1444-1, SUSE-SU-2017:2838-1, SUSE-SU-2017:3177-1, SWEET32, TNS-2016-16, USN-3087-1, USN-3087-2, USN-3270-1, USN-3339-1, USN-3339-2, USN-3372-1, VIGILANCE-VUL-20473.

Description of the vulnerability

The Blowfish and Triple-DES symetric encryption algorithms use 64 bit blocks.

However, if they are used in CBC mode, a collision occurs after 785 GB transferred, and it is then possible to decrypt blocks with an attack lasting two days.

An attacker can therefore create a TLS/VPN session with a Blowfish/Triple-DES algorithm, and perform a two days attack, in order to decrypt data.
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vulnerability note CVE-2015-4852 CVE-2015-6420 CVE-2015-6934

Apache Commons Collections: code execution via InvokerTransformer

Synthesis of the vulnerability

An attacker can send a malicious serialized Gadget Chain object to a Java application using Apache Commons Collections, in order to run shell code.
Impacted products: CAS Server, Blue Coat CAS, SGOS by Blue Coat, Brocade Network Advisor, Brocade vTM, ASA, AsyncOS, Cisco ESA, Cisco Prime Access Registrar, Prime Infrastructure, Cisco Prime LMS, Cisco PRSM, Secure ACS, Cisco CUCM, Cisco Unified CCX, Cisco MeetingPlace, Cisco Unity ~ precise, Debian, BIG-IP Hardware, TMOS, HPE BSM, HPE NNMi, HP Operations, DB2 UDB, Domino, Notes, IRAD, QRadar SIEM, SPSS Modeler, Tivoli Storage Manager, Tivoli Workload Scheduler, WebSphere AS Traditional, JBoss AS OpenSource, Junos Space, ePO, Mule ESB, Snap Creator Framework, SnapManager, Oracle Communications, Oracle Directory Server, Oracle Directory Services Plus, Oracle Fusion Middleware, Oracle GlassFish Server, Oracle Identity Management, Oracle iPlanet Web Proxy Server, Oracle iPlanet Web Server, Oracle OIT, Solaris, Tuxedo, Oracle Virtual Directory, WebLogic, Oracle Web Tier, RHEL, JBoss EAP by Red Hat, SAS Add-in for Microsoft Office, SAS Analytics Pro, Base SAS Software, SAS Enterprise BI Server, SAS Enterprise Guide, SAS Management Console, SAS OLAP Server, SAS SAS/ACCESS, SAS SAS/AF, SAS SAS/CONNECT, SAS SAS/EIS, SAS SAS/ETS, SAS SAS/FSP, SAS SAS/GRAPH, SAS SAS/IML, SAS SAS/OR, SAS SAS/STAT, SAS SAS/Web Report Studio, Unix (platform) ~ not comprehensive, vCenter Server.
Severity: 3/4.
Consequences: user access/rights.
Provenance: document.
Number of vulnerabilities in this bulletin: 12.
Creation date: 12/11/2015.
Identifiers: 1610582, 1970575, 1971370, 1971531, 1971533, 1971751, 1972261, 1972373, 1972565, 1972794, 1972839, 2011281, 7014463, 7022958, 9010052, BSA-2016-004, bulletinjul2016, c04953244, c05050545, c05206507, c05325823, c05327447, CERTFR-2015-AVI-484, CERTFR-2015-AVI-555, cisco-sa-20151209-java-deserialization, COLLECTIONS-580, cpuapr2017, cpuapr2018, cpujan2017, cpujan2018, cpujul2017, cpuoct2016, cpuoct2017, cpuoct2018, CVE-2015-4852, CVE-2015-6420, CVE-2015-6934, CVE-2015-7420-ERROR, CVE-2015-7450, CVE-2015-7501, CVE-2015-8545, CVE-2015-8765, CVE-2016-1985, CVE-2016-1997, CVE-2016-4373, CVE-2016-4398, DSA-3403-1, HPSBGN03542, HPSBGN03560, HPSBGN03630, HPSBGN03656, HPSBGN03670, JSA10838, NTAP-20151123-0001, RHSA-2015:2500-01, RHSA-2015:2501-01, RHSA-2015:2502-01, RHSA-2015:2516-01, RHSA-2015:2517-01, RHSA-2015:2521-01, RHSA-2015:2522-01, RHSA-2015:2523-01, RHSA-2015:2524-01, RHSA-2015:2534-01, RHSA-2015:2535-01, RHSA-2015:2536-01, RHSA-2015:2537-01, RHSA-2015:2538-01, RHSA-2015:2539-01, RHSA-2015:2540-01, RHSA-2015:2541-01, RHSA-2015:2542-01, RHSA-2015:2547-01, RHSA-2015:2548-01, RHSA-2015:2556-01, RHSA-2015:2557-01, RHSA-2015:2559-01, RHSA-2015:2560-01, RHSA-2015:2578-01, RHSA-2015:2579-01, RHSA-2015:2670-01, RHSA-2015:2671-01, RHSA-2016:0040-01, RHSA-2016:0118-01, SA110, SB10144, SOL30518307, VIGILANCE-VUL-18294, VMSA-2015-0009, VMSA-2015-0009.1, VMSA-2015-0009.2, VMSA-2015-0009.3, VMSA-2015-0009.4, VU#576313.

Description of the vulnerability

The Apache Commons Collections library is used by several Java applications.

A Java Gadgets ("gadget chains") object can contain Transformers, with an "exec" string containing a shell command which is run with the Java.lang.Runtime.exec() method. When raw data are unserialized, the readObject() method is thus called to rebuild the Gadgets object, and it uses InvokerTransformer, which runs the indicated shell command.

It can be noted that other classes (CloneTransformer, ForClosure, InstantiateFactory, InstantiateTransformer, PrototypeCloneFactory, PrototypeSerializationFactory, WhileClosure) also execute a shell command from raw data to deserialize.

However, several applications publicly expose (before authentication) the Java unserialization feature.

An attacker can therefore send a malicious serialized Gadget Chain object to a Java application using Apache Commons Collections, in order to run shell code.
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vulnerability CVE-2015-3269

Apache Flex BlazeDS: information disclosure

Synthesis of the vulnerability

An attacker can transmit malicious XML data via BlazeDS to Adobe LiveCycle Data Services, in order to read a file, scan sites, or trigger a denial of service.
Impacted products: Adobe LiveCycle, HPE BSM, HP Operations.
Severity: 2/4.
Consequences: data reading, denial of service on service.
Provenance: document.
Creation date: 19/08/2015.
Identifiers: APSB15-20, c05026202, CVE-2015-3269, HPSBGN03550, VIGILANCE-VUL-17710.

Description of the vulnerability

XML data can contain external entities (DTD):
  <!ENTITY name SYSTEM "file">
  <!ENTITY name SYSTEM "http://server/file">
A program which reads these XML data can replace these entities by data coming from the indicated file. When the program uses XML data coming from an untrusted source, this behavior leads to:
 - content disclosure from files of the server
 - private web site scan
 - a denial of service by opening a blocking file
This feature must be disabled to process XML data coming from an untrusted source.

However, the Apache Flex BlazeDS parser allows external entities.

An attacker can therefore transmit malicious XML data to Apache Flex BlazeDS, in order to read a file, scan sites, or trigger a denial of service.
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vulnerability CVE-2015-4000

TLS: weakening Diffie-Hellman via Logjam

Synthesis of the vulnerability

An attacker, located as a Man-in-the-Middle, can force the TLS client/server to accept a weak export algorithm, in order to more easily capture or alter exchanged data.
Impacted products: Apache httpd, Blue Coat CAS, ProxyAV, ProxySG par Blue Coat, SGOS by Blue Coat, DCFM Enterprise, Brocade Network Advisor, Brocade vTM, Clearswift Email Gateway, Debian, Summit, Fedora, FileZilla Server, FreeBSD, HPE BSM, HPE NNMi, HP Operations, HP-UX, AIX, DB2 UDB, IRAD, Security Directory Server, SPSS Modeler, Tivoli Storage Manager, Tivoli System Automation, Tivoli Workload Scheduler, WebSphere AS Traditional, WebSphere MQ, Juniper J-Series, Junos OS, Junos Pulse, Juniper Network Connect, Juniper SBR, lighttpd, ePO, Firefox, NSS, MySQL Community, MySQL Enterprise, Data ONTAP 7-Mode, Snap Creator Framework, SnapManager, NetBSD, nginx, Nodejs Core, OpenSSL, openSUSE, openSUSE Leap, Solaris, Palo Alto Firewall PA***, PAN-OS, Percona Server, RealPresence Collaboration Server, RealPresence Distributed Media Application, RealPresence Resource Manager, Polycom VBP, Postfix, SSL protocol, Pulse Connect Secure, Puppet, RHEL, JBoss EAP by Red Hat, Sendmail, Slackware, SUSE Linux Enterprise Desktop, SLES, Synology DS***, Synology RS***, Ubuntu, WinSCP.
Severity: 2/4.
Consequences: data reading, data creation/edition.
Provenance: internet server.
Creation date: 20/05/2015.
Revision date: 20/05/2015.
Identifiers: 1610582, 1647054, 1957980, 1958984, 1959033, 1959539, 1959745, 1960194, 1960418, 1960862, 1962398, 1962694, 1963151, 9010038, 9010039, 9010041, 9010044, BSA-2015-005, bulletinjan2016, bulletinjul2015, c04725401, c04760669, c04767175, c04770140, c04773119, c04773241, c04774058, c04778650, c04832246, c04918839, c04926789, CERTFR-2016-AVI-303, CTX216642, CVE-2015-4000, DLA-507-1, DSA-3287-1, DSA-3300-1, DSA-3688-1, FEDORA-2015-10047, FEDORA-2015-10108, FEDORA-2015-9048, FEDORA-2015-9130, FEDORA-2015-9161, FreeBSD-EN-15:08.sendmail, FreeBSD-SA-15:10.openssl, HPSBGN03399, HPSBGN03407, HPSBGN03411, HPSBGN03417, HPSBHF03433, HPSBMU03345, HPSBMU03401, HPSBUX03363, HPSBUX03388, HPSBUX03435, HPSBUX03512, JSA10681, Logjam, NetBSD-SA2015-008, NTAP-20150616-0001, NTAP-20150715-0001, NTAP-20151028-0001, openSUSE-SU-2015:1139-1, openSUSE-SU-2015:1209-1, openSUSE-SU-2015:1216-1, openSUSE-SU-2015:1277-1, openSUSE-SU-2016:0226-1, openSUSE-SU-2016:0255-1, openSUSE-SU-2016:0261-1, openSUSE-SU-2016:2267-1, PAN-SA-2016-0020, PAN-SA-2016-0028, RHSA-2015:1072-01, RHSA-2015:1185-01, RHSA-2015:1197-01, RHSA-2016:2054-01, RHSA-2016:2055-01, RHSA-2016:2056-01, SA111, SA40002, SA98, SB10122, SSA:2015-219-02, SSRT102180, SSRT102254, SSRT102964, SSRT102977, SUSE-SU-2015:1143-1, SUSE-SU-2015:1150-1, SUSE-SU-2015:1177-1, SUSE-SU-2015:1177-2, SUSE-SU-2015:1181-1, SUSE-SU-2015:1181-2, SUSE-SU-2015:1182-2, SUSE-SU-2015:1183-1, SUSE-SU-2015:1183-2, SUSE-SU-2015:1184-1, SUSE-SU-2015:1184-2, SUSE-SU-2015:1185-1, SUSE-SU-2015:1268-1, SUSE-SU-2015:1268-2, SUSE-SU-2015:1269-1, SUSE-SU-2015:1581-1, SUSE-SU-2016:0224-1, SUSE-SU-2018:1768-1, TSB16728, USN-2624-1, USN-2625-1, USN-2656-1, USN-2656-2, VIGILANCE-VUL-16950, VN-2015-007.

Description of the vulnerability

The Diffie-Hellman algorithm is used to exchange cryptographic keys. The DHE_EXPORT suite uses prime numbers smaller than 512 bits.

The Diffie-Hellman algorithm is used by TLS. However, during the negotiation, an attacker, located as a Man-in-the-Middle, can force TLS to use DHE_EXPORT (event if stronger suites are available).

This vulnerability can then be combined with VIGILANCE-VUL-16951.

An attacker, located as a Man-in-the-Middle, can therefore force the TLS client/server to accept a weak export algorithm, in order to more easily capture or alter exchanged data.
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computer vulnerability alert CVE-2015-2808

TLS: RC4 decryption via Bar Mitzvah

Synthesis of the vulnerability

An attacker can use the Bar Mitzvah Attack on TLS, in order to obtain sensitive information encrypted by RC4.
Impacted products: DCFM Enterprise, Brocade Network Advisor, Brocade vTM, Avamar, Black Diamond, ExtremeXOS, Summit, BIG-IP Hardware, TMOS, HPE BSM, HP Data Protector, HPE NNMi, HP Operations, SiteScope, HP Switch, HP-UX, AIX, DB2 UDB, Domino, Notes, IRAD, Security Directory Server, Tivoli Storage Manager, Tivoli Workload Scheduler, WebSphere AS Traditional, WebSphere MQ, SnapManager, Oracle Communications, Oracle Directory Server, Oracle Directory Services Plus, Oracle Fusion Middleware, Oracle GlassFish Server, Oracle Identity Management, Oracle iPlanet Web Server, Oracle OIT, Oracle Virtual Directory, WebLogic, Oracle Web Tier, SSL protocol, RHEL, SUSE Linux Enterprise Desktop, SLES.
Severity: 2/4.
Consequences: data reading.
Provenance: internet client.
Creation date: 27/03/2015.
Identifiers: 1450666, 1610582, 1647054, 1882708, 1883551, 1883553, 1902260, 1903541, 1960659, 1963275, 1967498, 523628, 7014463, 7022958, 7045736, 9010041, 9010044, Bar Mitzvah, BSA-2015-007, c04708650, c04767175, c04770140, c04772305, c04773119, c04773241, c04777195, c04777255, c04832246, c04926789, c05085988, c05336888, cpujan2018, cpuoct2017, CVE-2015-2808, DSA-2018-124, HPSBGN03350, HPSBGN03393, HPSBGN03399, HPSBGN03407, HPSBGN03414, HPSBGN03415, HPSBGN03580, HPSBHF03673, HPSBMU03345, HPSBMU03401, HPSBUX03435, HPSBUX03512, NTAP-20150715-0001, NTAP-20151028-0001, RHSA-2015:1020-01, RHSA-2015:1021-01, RHSA-2015:1091-01, SOL16864, SSRT102254, SSRT102977, SUSE-SU-2015:1073-1, SUSE-SU-2015:1085-1, SUSE-SU-2015:1086-1, SUSE-SU-2015:1086-2, SUSE-SU-2015:1086-3, SUSE-SU-2015:1086-4, SUSE-SU-2015:1138-1, SUSE-SU-2015:1161-1, VIGILANCE-VUL-16486, VN-2015-004.

Description of the vulnerability

During the initialization of a TLS session, the client and the server negotiate cryptographic algorithms. The RC4 algorithm can be chosen to encrypt data.

For some weak keys (one over 2^24), the Invariance Weakness can be used to predict the two LSB (Least Significant Bit) of the 100 first bytes encrypted with RC4. The first TLS message is "Finished" (36 bytes), thus an attacker can predict LSBs of 64 bytes.

An attacker can therefore use the Bar Mitzvah Attack on TLS, in order to obtain sensitive information encrypted by RC4.
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vulnerability CVE-2015-0235

glibc: buffer overflow of gethostbyname, GHOST

Synthesis of the vulnerability

An attacker can for example send an email using a long IPv4 address, to force the messaging server to resolve this address, and to generate a buffer overflow in gethostbyname() of the glibc, in order to trigger a denial of service, and possibly to execute code. Several programs using the gethostbyname() function are vulnerable with a similar attack vector.
Impacted products: Arkoon FAST360, GAiA, CheckPoint IP Appliance, Provider-1, SecurePlatform, CheckPoint Security Gateway, CheckPoint VSX-1, Cisco ASR, Cisco Catalyst, IOS XE Cisco, IOS XR Cisco, Nexus by Cisco, NX-OS, Prime Infrastructure, Cisco CUCM, XenServer, Clearswift Email Gateway, Debian, Unisphere EMC, VNX Operating Environment, VNX Series, Exim, BIG-IP Hardware, TMOS, HPE BSM, HP Operations, Performance Center, Junos Space, McAfee Email and Web Security, McAfee Email Gateway, McAfee MOVE AntiVirus, McAfee NSP, McAfee NTBA, McAfee NGFW, VirusScan, McAfee Web Gateway, openSUSE, Oracle Communications, Palo Alto Firewall PA***, PAN-OS, PHP, HDX, RealPresence Collaboration Server, RealPresence Distributed Media Application, RealPresence Resource Manager, Polycom VBP, RHEL, SIMATIC, Slackware, SUSE Linux Enterprise Desktop, SLES, Synology DSM, Ubuntu, Unix (platform) ~ not comprehensive, WordPress Core.
Severity: 4/4.
Consequences: user access/rights, denial of service on client.
Provenance: internet server.
Creation date: 27/01/2015.
Revision date: 27/01/2015.
Identifiers: 198850, 199399, c04577814, c04589512, CERTFR-2015-AVI-043, cisco-sa-20150128-ghost, cpujul2015, cpujul2017, cpuoct2016, cpuoct2017, cpuoct2018, CTX200437, CVE-2015-0235, DSA-3142-1, ESA-2015-030, ESA-2015-041, GHOST, HPSBGN03270, HPSBGN03285, JSA10671, K16057, KM01391662, MDVSA-2015:039, openSUSE-SU-2015:0162-1, openSUSE-SU-2015:0184-1, PAN-SA-2015-0002, RHSA-2015:0090-01, RHSA-2015:0092-01, RHSA-2015:0099-01, RHSA-2015:0101-01, RHSA-2015:0126-01, SB10100, sk104443, SOL16057, SSA:2015-028-01, SSA-994726, SUSE-SU-2015:0158-1, USN-2485-1, VIGILANCE-VUL-16060, VU#967332.

Description of the vulnerability

The glibc library provides two functions to obtain the IP address of a server from its DNS name:
  struct hostent *gethostbyname(const char *name);
  struct hostent *gethostbyname2(const char *name, int af);

For example:
  he = gethostbyname("www.example.com");

These functions also accept to directly process an IP address:
  he = gethostbyname("192.168.1.1");

However, a malformed IPv4 address, which is too long such as 192.168.111111.1 (more than 1024 byte long) triggers an overflow in the __nss_hostname_digits_dots() function.

An attacker can therefore for example send an email using a long IPv4 address, to force the messaging server to resolve this address, and to generate a buffer overflow in gethostbyname() of the glibc, in order to trigger a denial of service, and possibly to execute code.

Several programs using the gethostbyname() function are vulnerable (exim, php, pppd, procmail) with a similar attack vector. The following programs are apparently not vulnerable: apache, cups, dovecot, gnupg, isc-dhcp, lighttpd, mariadb/mysql, nfs-utils, nginx, nodejs, openldap, openssh, postfix, proftpd, pure-ftpd, rsyslog, samba, sendmail, squid, sysklogd, syslog-ng, tcp_wrappers, vsftpd, xinetd.
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computer vulnerability CVE-2014-9322

Linux kernel: privilege escalation via IRET gsbase

Synthesis of the vulnerability

A local attacker can call an IRET on the Linux kernel, in order to escalate his privileges.
Impacted products: BIG-IP Hardware, TMOS, Android OS, HPE BSM, HP Operations, Performance Center, Linux, openSUSE, RHEL, SUSE Linux Enterprise Desktop, SLES, Ubuntu.
Severity: 2/4.
Consequences: administrator access/rights, privileged access/rights.
Provenance: user shell.
Creation date: 16/12/2014.
Identifiers: c04594684, CERTFR-2014-AVI-532, CERTFR-2015-AVI-021, CERTFR-2015-AVI-054, CVE-2014-9322, HPSBGN03282, KM01411792, MDVSA-2015:027, openSUSE-SU-2014:1669-1, openSUSE-SU-2014:1677-1, openSUSE-SU-2014:1678-1, openSUSE-SU-2015:0566-1, RHSA-2014:1997-01, RHSA-2014:1998-01, RHSA-2014:2008-01, RHSA-2014:2009-01, RHSA-2014:2010-01, RHSA-2014:2028-01, RHSA-2014:2029-01, RHSA-2014:2030-01, RHSA-2014:2031-01, RHSA-2015:0009-01, SOL16122, SUSE-SU-2014:1693-1, SUSE-SU-2014:1693-2, SUSE-SU-2014:1695-1, SUSE-SU-2014:1695-2, SUSE-SU-2014:1698-1, SUSE-SU-2015:0068-1, SUSE-SU-2015:0581-1, SUSE-SU-2015:0736-1, SUSE-SU-2015:0812-1, USN-2464-1, USN-2491-1, VIGILANCE-VUL-15815.

Description of the vulnerability

On an Intel processor, when an interruption/exception occurs (for example a system call via int 0x80), the current context (registers CS and EIP/RIP, and flags) is saved. At the end of the interruption/exception, the IRET instruction restores saved values, so the interrupted program can continue its execution where it was interrupted:
 - restore the EIP/RIP instruction pointer
 - restore the CS register (privilege switch)
 - restore flags

However, on a 64 bit processor, with a writable kernel stack, after an IRET triggering a #SS Fault, the general_protection() function is executed with kernel/user BS Base addresses swapped.

A local attacker can therefore call an IRET on the Linux kernel, in order to escalate his privileges.
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vulnerability note CVE-2014-3673 CVE-2014-3687 CVE-2014-3688

Linux kernel: multiple vulnerabilities of SCTP

Synthesis of the vulnerability

An attacker can use several vulnerabilities of SCTP of the Linux kernel.
Impacted products: Debian, BIG-IP Hardware, TMOS, Fedora, HPE BSM, HP Operations, Performance Center, Linux, openSUSE, RHEL, SUSE Linux Enterprise Desktop, SLES, Ubuntu.
Severity: 2/4.
Consequences: denial of service on server, denial of service on service, denial of service on client.
Provenance: intranet client.
Number of vulnerabilities in this bulletin: 3.
Creation date: 28/10/2014.
Identifiers: c04594684, CERTFR-2014-AVI-455, CERTFR-2014-AVI-459, CERTFR-2014-AVI-495, CERTFR-2014-AVI-528, CERTFR-2014-AVI-532, CERTFR-2015-AVI-051, CERTFR-2015-AVI-165, CERTFR-2018-AVI-361, CVE-2014-3673, CVE-2014-3687, CVE-2014-3688, DSA-3060-1, FEDORA-2014-13558, FEDORA-2014-13773, FEDORA-2014-14068, HPSBGN03282, KM01411792, MDVSA-2014:230, MDVSA-2015:027, openSUSE-SU-2014:1677-1, openSUSE-SU-2014:1678-1, openSUSE-SU-2015:0566-1, RHSA-2014:1971-01, RHSA-2014:1997-01, RHSA-2014:2009-01, RHSA-2014:2028-01, RHSA-2014:2030-01, RHSA-2015:0043-01, RHSA-2015:0062-01, RHSA-2015:0115-01, SOL15910, SOL16025, SUSE-SU-2014:1693-1, SUSE-SU-2014:1693-2, SUSE-SU-2014:1695-1, SUSE-SU-2014:1695-2, SUSE-SU-2014:1698-1, SUSE-SU-2015:0068-1, SUSE-SU-2015:0178-1, SUSE-SU-2015:0481-1, SUSE-SU-2015:0529-1, SUSE-SU-2015:0581-1, SUSE-SU-2015:0652-1, SUSE-SU-2015:0736-1, SUSE-SU-2015:0812-1, SUSE-SU-2018:2062-1, USN-2417-1, USN-2418-1, USN-2441-1, USN-2442-1, USN-2445-1, USN-2446-1, USN-2447-1, USN-2447-2, USN-2448-1, USN-2448-2, VIGILANCE-VUL-15554.

Description of the vulnerability

Several vulnerabilities were announced in the Linux kernel.

An attacker can send duplicated packets of type ASCONF to a kernel that bundles fragments in the output queue, in order to trigger a denial of service. [severity:2/4; CVE-2014-3687]

An attacker can send specially crafted ASCONF packets, in order to trigger a denial of service. [severity:2/4; CVE-2014-3673]

An attacker can send a sequence of SCTP fragments, the last of which has an ill formed header, in order make the kernel use an excessive amount of memory for the packet queue and so, to trigger a denial of service. [severity:2/4; CVE-2014-3688]
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computer vulnerability CVE-2014-3566

SSL 3.0: decrypting session, POODLE

Synthesis of the vulnerability

An attacker, located as a Man-in-the-Middle, can decrypt a SSL 3.0 session, in order to obtain sensitive information.
Impacted products: SES, SNS, Apache httpd, Arkoon FAST360, ArubaOS, Asterisk Open Source, BES, ProxyAV, ProxySG par Blue Coat, SGOS by Blue Coat, GAiA, CheckPoint IP Appliance, IPSO, SecurePlatform, CheckPoint Security Appliance, CheckPoint Security Gateway, Cisco ASR, Cisco ACE, ASA, AsyncOS, Cisco CSS, Cisco ESA, IOS by Cisco, IOS XE Cisco, IOS XR Cisco, IronPort Email, Nexus by Cisco, NX-OS, Prime Infrastructure, Cisco PRSM, Cisco Router, WebNS, Clearswift Email Gateway, Clearswift Web Gateway, CUPS, Debian, Black Diamond, ExtremeXOS, Summit, BIG-IP Hardware, TMOS, Fedora, FortiGate, FortiGate Virtual Appliance, FortiManager, FortiManager Virtual Appliance, FortiOS, FreeBSD, F-Secure AV, hMailServer, HPE BSM, HP Data Protector, HPE NNMi, HP Operations, ProCurve Switch, SiteScope, HP Switch, TippingPoint IPS, HP-UX, AIX, Domino, Notes, Security Directory Server, SPSS Data Collection, Tivoli System Automation, Tivoli Workload Scheduler, WebSphere AS Traditional, WebSphere MQ, IVE OS, Juniper J-Series, Junos OS, Junos Space, Junos Space Network Management Platform, MAG Series by Juniper, NSM Central Manager, NSMXpress, Juniper SA, McAfee Email and Web Security, McAfee Email Gateway, ePO, VirusScan, McAfee Web Gateway, IE, Windows 2003, Windows 2008 R0, Windows 2008 R2, Windows 2012, Windows 7, Windows 8, Windows (platform) ~ not comprehensive, Windows RT, Windows Vista, NETASQ, NetBSD, NetScreen Firewall, ScreenOS, nginx, Nodejs Core, OpenSSL, openSUSE, openSUSE Leap, Oracle DB, Oracle Fusion Middleware, Oracle Identity Management, Oracle OIT, Solaris, Tuxedo, WebLogic, Palo Alto Firewall PA***, PAN-OS, Polycom CMA, HDX, RealPresence Collaboration Server, RealPresence Distributed Media Application, Polycom VBP, Postfix, SSL protocol, Puppet, RHEL, JBoss EAP by Red Hat, RSA Authentication Manager, ROS, ROX, RuggedSwitch, Slackware, Splunk Enterprise, stunnel, SUSE Linux Enterprise Desktop, SLES, Synology DSM, Ubuntu, Unix (platform) ~ not comprehensive, ESXi, vCenter Server, VMware vSphere, VMware vSphere Hypervisor, WinSCP.
Severity: 3/4.
Consequences: data reading, data creation/edition.
Provenance: internet client.
Creation date: 15/10/2014.
Identifiers: 10923, 1589583, 1595265, 1653364, 1657963, 1663874, 1687167, 1687173, 1687433, 1687604, 1687611, 1690160, 1690185, 1690342, 1691140, 1692551, 1695392, 1696383, 1699051, 1700706, 2977292, 3009008, 7036319, aid-10142014, AST-2014-011, bulletinapr2015, bulletinjan2015, bulletinjan2016, bulletinjul2015, bulletinjul2016, bulletinoct2015, c04486577, c04487990, c04492722, c04497114, c04506802, c04510230, c04567918, c04616259, c04626982, c04676133, c04776510, CERTFR-2014-ALE-007, CERTFR-2014-AVI-454, CERTFR-2014-AVI-509, CERTFR-2015-AVI-169, CERTFR-2016-AVI-303, cisco-sa-20141015-poodle, cpujul2017, CTX216642, CVE-2014-3566, DSA-3053-1, DSA-3253-1, DSA-3489-1, ESA-2014-178, ESA-2015-098, ESXi500-201502001, ESXi500-201502101-SG, ESXi510-201503001, ESXi510-201503001-SG, ESXi510-201503101-SG, ESXi550-201501001, ESXi550-201501101-SG, FEDORA-2014-12989, FEDORA-2014-12991, FEDORA-2014-13012, FEDORA-2014-13017, FEDORA-2014-13040, FEDORA-2014-13069, FEDORA-2014-13070, FEDORA-2014-13444, FEDORA-2014-13451, FEDORA-2014-13764, FEDORA-2014-13777, FEDORA-2014-13781, FEDORA-2014-13794, FEDORA-2014-14234, FEDORA-2014-14237, FEDORA-2014-15379, FEDORA-2014-15390, FEDORA-2014-15411, FEDORA-2014-17576, FEDORA-2014-17587, FEDORA-2015-9090, FEDORA-2015-9110, FreeBSD-SA-14:23.openssl, FSC-2014-8, HPSBGN03256, HPSBGN03305, HPSBGN03332, HPSBHF03156, HPSBHF03300, HPSBMU03152, HPSBMU03184, HPSBMU03213, HPSBMU03416, HPSBUX03162, HPSBUX03194, JSA10656, MDVSA-2014:203, MDVSA-2014:218, MDVSA-2015:062, NetBSD-SA2014-015, nettcp_advisory, openSUSE-SU-2014:1331-1, openSUSE-SU-2014:1384-1, openSUSE-SU-2014:1395-1, openSUSE-SU-2014:1426-1, openSUSE-SU-2016:0640-1, openSUSE-SU-2016:1586-1, openSUSE-SU-2017:0980-1, PAN-SA-2014-0005, POODLE, RHSA-2014:1652-01, RHSA-2014:1653-01, RHSA-2014:1692-01, RHSA-2014:1920-01, RHSA-2014:1948-01, RHSA-2015:0010-01, RHSA-2015:0011-01, RHSA-2015:0012-01, RHSA-2015:1545-01, RHSA-2015:1546-01, SA83, SB10090, SB10104, sk102989, SOL15702, SP-CAAANKE, SP-CAAANST, SPL-91947, SPL-91948, SSA:2014-288-01, SSA-396873, SSA-472334, SSRT101767, STORM-2014-02-FR, SUSE-SU-2014:1357-1, SUSE-SU-2014:1361-1, SUSE-SU-2014:1386-1, SUSE-SU-2014:1387-1, SUSE-SU-2014:1387-2, SUSE-SU-2014:1409-1, SUSE-SU-2015:0010-1, SUSE-SU-2016:1457-1, SUSE-SU-2016:1459-1, T1021439, TSB16540, USN-2839-1, VIGILANCE-VUL-15485, VMSA-2015-0001, VMSA-2015-0001.1, VMSA-2015-0001.2, VN-2014-003, VU#577193.

Description of the vulnerability

An SSL/TLS session can be established using several protocols:
 - SSL 2.0 (obsolete)
 - SSL 3.0
 - TLS 1.0
 - TLS 1.1
 - TLS 1.2

An attacker can downgrade the version to SSLv3. However, with SSL 3.0, an attacker can change the padding position with a CBC encryption, in order to progressively guess clear text fragments.

This vulnerability is named POODLE (Padding Oracle On Downgraded Legacy Encryption).

An attacker, located as a Man-in-the-Middle, can therefore decrypt a SSL 3.0 session, in order to obtain sensitive information.
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