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 WebSphere AS Traditional

computer vulnerability note CVE-2015-0250

Apache Batik: external XML entity injection

Synthesis of the vulnerability

An attacker can transmit malicious XML data to Apache Batik, in order to read a file, scan sites, or trigger a denial of service.
Impacted products: Debian, Fedora, QRadar SIEM, WebSphere AS Traditional, Ubuntu.
Severity: 2/4.
Consequences: data reading, denial of service on service.
Provenance: document.
Creation date: 05/06/2015.
Identifiers: 1959083, 1963275, 2015810, 7014463, 7022958, CVE-2015-0250, DSA-3205-1, FEDORA-2015-8745, FEDORA-2015-8783, FEDORA-2015-8803, MDVSA-2015:203, RHSA-2015:2559-01, RHSA-2015:2560-01, RHSA-2016:0041-01, RHSA-2016:0042-01, USN-2548-1, VIGILANCE-VUL-17069.

Description of the vulnerability

An attacker can transmit malicious XML data to Apache Batik, in order to read a file, scan sites, or trigger a denial of service.
Full Vigil@nce bulletin... (Free trial)

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, 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.
Full Vigil@nce bulletin... (Free trial)

computer vulnerability announce CVE-2014-7810

Apache Tomcat: privilege escalation via Web Application

Synthesis of the vulnerability

An attacker can create a malicious application, and invite the administrator to install it on Apache Tomcat, in order to escalate his privileges.
Impacted products: Tomcat, Debian, HP-UX, Tivoli System Automation, WebSphere AS Traditional, Oracle Communications, Solaris, RHEL.
Severity: 2/4.
Consequences: administrator access/rights, privileged access/rights, user access/rights.
Provenance: document.
Creation date: 18/05/2015.
Identifiers: bulletinoct2015, c05054964, cpujul2018, CVE-2014-7810, DSA-3428-1, DSA-3447-1, DSA-3530-1, HPSBUX03561, ibm10729557, ibm10739953, RHSA-2015:1621-01, RHSA-2015:1622-01, RHSA-2016:0492-01, VIGILANCE-VUL-16917.

Description of the vulnerability

The Apache Tomcat administrator can accept to install web applications from untrusted sources.

However, these applications can use the Expression Language to bypass the Security Manager.

An attacker can therefore create a malicious application, and invite the administrator to install it on Apache Tomcat, in order to escalate his privileges.
Full Vigil@nce bulletin... (Free trial)

computer vulnerability announce CVE-2015-1829

APR Core: read-write access via Windows Named Pipe

Synthesis of the vulnerability

A local attacker on Windows can bypass access restrictions of Named Pipe of APR Core, in order to read or alter data.
Impacted products: APR-core, WebSphere AS Traditional.
Severity: 2/4.
Consequences: data reading, data creation/edition, data deletion.
Provenance: user shell.
Creation date: 29/04/2015.
Identifiers: 1963275, 7022958, CVE-2015-1829, VIGILANCE-VUL-16767.

Description of the vulnerability

The APR library can be installed on Windows.

Named Pipes allow two processes to exchange their information. However, a local attacker can replace a pipe to access to data.

A local attacker on Windows can therefore bypass access restrictions of Named Pipe of APR Core, in order to read or alter data.
Full Vigil@nce bulletin... (Free trial)

computer vulnerability CVE-2015-1920

WebSphere AS: code execution via Management Port

Synthesis of the vulnerability

An attacker can connect to the management port of WebSphere AS, in order to execute code.
Impacted products: Tivoli System Automation, Tivoli Workload Scheduler, WebSphere AS Traditional.
Severity: 3/4.
Consequences: administrator access/rights, privileged access/rights, user access/rights.
Provenance: intranet client.
Creation date: 29/04/2015.
Identifiers: 1883573, 1957952, 1957955, 1960313, 1963275, 7014463, 7022958, CERTFR-2015-AVI-194, CVE-2015-1920, VIGILANCE-VUL-16755.

Description of the vulnerability

The WebSphere AS product offers a management web service listening on a port.

However, if an attacker sends a specific sequence of instructions to this port, he can execute code.

An attacker can therefore connect to the management port of WebSphere AS, in order to execute code.
Full Vigil@nce bulletin... (Free trial)

computer vulnerability announce CVE-2015-0204 CVE-2015-0458 CVE-2015-0459

Oracle Java: several vulnerabilities of April 2015

Synthesis of the vulnerability

Several vulnerabilities of Oracle Java were announced in April 2015.
Impacted products: DCFM Enterprise, Brocade Network Advisor, Brocade vTM, Debian, Avamar, ECC, Fedora, AIX, DB2 UDB, Domino, Notes, IRAD, Security Directory Server, SPSS Modeler, Tivoli Storage Manager, Tivoli System Automation, Tivoli Workload Scheduler, WebSphere AS Traditional, WebSphere MQ, ePO, Java OpenJDK, openSUSE, Java Oracle, JavaFX, Puppet, RHEL, SUSE Linux Enterprise Desktop, SLES, Ubuntu.
Severity: 3/4.
Consequences: user access/rights, data reading, data creation/edition, data deletion, denial of service on service, denial of service on client.
Provenance: document.
Number of vulnerabilities in this bulletin: 14.
Creation date: 15/04/2015.
Identifiers: 1610582, 1902260, 1903541, 1903704, 1958902, 1960194, 1964236, 1966551, 1967498, 1968485, 205086, 206954, 7045736, BSA-2015-009, CERTFR-2015-AVI-172, cpuapr2015, CVE-2015-0204, CVE-2015-0458, CVE-2015-0459, CVE-2015-0460, CVE-2015-0469, CVE-2015-0470, CVE-2015-0477, CVE-2015-0478, CVE-2015-0480, CVE-2015-0484, CVE-2015-0486, CVE-2015-0488, CVE-2015-0491, CVE-2015-0492, DSA-3234-1, DSA-3235-1, DSA-3316-1, ESA-2015-085, ESA-2015-134, FEDORA-2015-6357, FEDORA-2015-6369, FEDORA-2015-6397, FREAK, MDVSA-2015:212, openSUSE-SU-2015:0773-1, openSUSE-SU-2015:0774-1, RHSA-2015:0806-01, RHSA-2015:0807-01, RHSA-2015:0808-01, RHSA-2015:0809-01, RHSA-2015:0854-01, RHSA-2015:0857-01, RHSA-2015:0858-01, RHSA-2015:1006-01, RHSA-2015:1007-01, RHSA-2015:1020-01, RHSA-2015:1021-01, RHSA-2015:1091-01, SB10119, SUSE-SU-2015:0833-1, 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, SUSE-SU-2015:2166-1, SUSE-SU-2015:2168-1, SUSE-SU-2015:2168-2, SUSE-SU-2015:2182-1, SUSE-SU-2015:2192-1, SUSE-SU-2015:2216-1, USN-2573-1, USN-2574-1, VIGILANCE-VUL-16607, VU#243585.

Description of the vulnerability

Several vulnerabilities were announced in Oracle Java.

An attacker can use a vulnerability of 2D, in order to obtain information, to alter information, or to trigger a denial of service. [severity:3/4; CVE-2015-0469]

An attacker can use a vulnerability of 2D, in order to obtain information, to alter information, or to trigger a denial of service. [severity:3/4; CVE-2015-0459]

An attacker can use a vulnerability of 2D, in order to obtain information, to alter information, or to trigger a denial of service. [severity:3/4; CVE-2015-0491]

An attacker can use a vulnerability of Hotspot, in order to obtain information, to alter information, or to trigger a denial of service. [severity:3/4; CVE-2015-0460]

An attacker can use a vulnerability of JavaFX, in order to obtain information, to alter information, or to trigger a denial of service. [severity:3/4; CVE-2015-0492]

An attacker can use a vulnerability of JavaFX, in order to obtain information, to alter information, or to trigger a denial of service. [severity:3/4; CVE-2015-0458]

An attacker can use a vulnerability of JavaFX, in order to obtain information, to alter information, or to trigger a denial of service. [severity:3/4; CVE-2015-0484]

An attacker can use a vulnerability of Tools, in order to alter information, or to trigger a denial of service. [severity:2/4; CVE-2015-0480]

An attacker can use a vulnerability of Deployment, in order to obtain information. [severity:2/4; CVE-2015-0486]

An attacker can use a vulnerability of JSSE, in order to trigger a denial of service. [severity:2/4; CVE-2015-0488]

An attacker can use a vulnerability of Beans, in order to alter information. [severity:2/4; CVE-2015-0477]

An attacker can use a vulnerability of Hotspot, in order to alter information. [severity:2/4; CVE-2015-0470]

An attacker can use a vulnerability of JCE, in order to obtain information (VIGILANCE-VUL-17836). [severity:2/4; CVE-2015-0478]

An attacker, located as a Man-in-the-Middle, can force the Chrome, JSSE, LibReSSL, Mono or OpenSSL client to accept a weak export algorithm, in order to more easily capture or alter exchanged data (VIGILANCE-VUL-16301). [severity:2/4; CVE-2015-0204, FREAK, VU#243585]
Full Vigil@nce bulletin... (Free trial)

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.
Full Vigil@nce bulletin... (Free trial)

vulnerability CVE-2014-3083 CVE-2014-3566 CVE-2014-8730

WebSphere AS 8.5: nine vulnerabilities

Synthesis of the vulnerability

An attacker can use several vulnerabilities of WebSphere AS 8.5.
Impacted products: WebSphere AS Traditional.
Severity: 3/4.
Consequences: user access/rights, data reading, denial of service on service.
Provenance: document.
Number of vulnerabilities in this bulletin: 9.
Creation date: 13/03/2015.
Revision date: 18/03/2015.
Identifiers: 1697368, 7036319, CVE-2014-3083, CVE-2014-3566, CVE-2014-8730, CVE-2014-8890, CVE-2015-0174, CVE-2015-0175, CVE-2015-1882, CVE-2015-1885, CVE-2015-2774, PI17768, PI21072, PI23279, PI27904, PI28050, PI30579, PI31339, PI31516, PI33008, PI33202, PI33357, PI36211, VIGILANCE-VUL-16390.

Description of the vulnerability

Several vulnerabilities were announced in WebSphere AS 8.5.

An attacker can use SNMP Configuration, in order to obtain sensitive information. [severity:2/4; CVE-2015-0174, PI21072]

An attacker, located as a Man-in-the-Middle, can decrypt a SSL 3.0 session, in order to obtain sensitive information (VIGILANCE-VUL-15485). [severity:2/4; CVE-2014-3566, PI27904, PI28050]

An attacker can traverse directories, in order to read a file outside the root path. [severity:2/4; CVE-2014-3083, PI17768, PI30579]

An attacker can use servlets, in order to obtain sensitive information. [severity:2/4; CVE-2014-8890, PI31339]

An attacker, located as a Man-in-the-Middle, can decrypt a Terminating TLS session, in order to obtain sensitive information (VIGILANCE-VUL-15756). [severity:3/4; CVE-2014-8730, CVE-2015-2774, PI31516]

An attacker can use Liberty Profile, in order to escalate his privileges. [severity:2/4; CVE-2015-0175, PI33008]

An attacker can use Liberty Profile, in order to escalate his privileges. [severity:2/4; CVE-2015-1885, PI33202, PI36211]

An attacker can use Liberty Profile, in order to escalate his privileges. [severity:2/4; CVE-2015-1882, PI33357]

An attacker can create a memory leak in com.ibm.ejs.ras.TraceComponent and java.util.concurrent.ConcurrentHashMap, in order to trigger a denial of service. [severity:2/4; PI23279]
Full Vigil@nce bulletin... (Free trial)

computer vulnerability note CVE-2014-3566 CVE-2014-6167 CVE-2014-6174

WebSphere AS 7.0: four vulnerabilities

Synthesis of the vulnerability

An attacker can use several vulnerabilities of WebSphere AS 7.0.
Impacted products: WebSphere AS Traditional.
Severity: 3/4.
Consequences: user access/rights, client access/rights.
Provenance: document.
Number of vulnerabilities in this bulletin: 4.
Creation date: 13/03/2015.
Identifiers: 1697369, 7014463, CVE-2014-3566, CVE-2014-6167, CVE-2014-6174, CVE-2014-8730, CVE-2015-2774, PI23819, PI27152, PI27904, PI28050, PI31516, VIGILANCE-VUL-16389.

Description of the vulnerability

Several vulnerabilities were announced in WebSphere AS 7.0.

An attacker can use a clickjacking on the console, in order to force the administrator to perform an operation. [severity:2/4; CVE-2014-6174, PI27152]

An attacker can trigger a Cross Site Scripting in URL Rewriting, in order to execute JavaScript code in the context of the web site. [severity:2/4; CVE-2014-6167, PI23819]

An attacker, located as a Man-in-the-Middle, can decrypt a SSL 3.0 session, in order to obtain sensitive information (VIGILANCE-VUL-15485). [severity:2/4; CVE-2014-3566, PI27904, PI28050]

An attacker, located as a Man-in-the-Middle, can decrypt a Terminating TLS session, in order to obtain sensitive information (VIGILANCE-VUL-15756). [severity:3/4; CVE-2014-8730, CVE-2015-2774, PI31516]
Full Vigil@nce bulletin... (Free trial)

vulnerability alert CVE-2015-0138 CVE-2015-0204

OpenSSL, LibReSSL, Mono, JSSE: weakening TLS encryption via FREAK

Synthesis of the vulnerability

An attacker, located as a Man-in-the-Middle, can force the Chrome, JSSE, LibReSSL, Mono or OpenSSL client to accept a weak export algorithm, in order to more easily capture or alter exchanged data.
Impacted products: Arkoon FAST360, ArubaOS, Avaya Ethernet Routing Switch, ProxyAV, ProxySG par Blue Coat, SGOS by Blue Coat, FabricOS, Brocade Network Advisor, Cisco ATA, AnyConnect VPN Client, Cisco ACE, ASA, AsyncOS, Cisco ESA, IOS by Cisco, IronPort Email, IronPort Web, Nexus by Cisco, NX-OS, Cisco Prime Access Registrar, Prime Collaboration Assurance, Cisco Prime DCNM, Prime Infrastructure, Cisco Prime LMS, Prime Network Control Systems, Cisco PRSM, Cisco Router, Cisco IP Phone, Cisco MeetingPlace, Cisco WSA, Clearswift Email Gateway, Debian, Black Diamond, ExtremeXOS, Summit, BIG-IP Hardware, TMOS, Fedora, FortiClient, FortiGate, FortiGate Virtual Appliance, FortiOS, FreeBSD, Chrome, HPE NNMi, HP-UX, AIX, DB2 UDB, Domino, Notes, IRAD, Security Directory Server, Tivoli Directory Server, Tivoli Storage Manager, Tivoli Workload Scheduler, WebSphere AS Traditional, WebSphere MQ, Juniper J-Series, Junos OS, Junos Space, Junos Space Network Management Platform, NSM Central Manager, NSMXpress, Juniper SBR, McAfee Email Gateway, ePO, McAfee NTBA, McAfee NGFW, VirusScan, McAfee Web Gateway, Windows (platform) ~ not comprehensive, Data ONTAP, NetBSD, NetScreen Firewall, ScreenOS, Nodejs Core, OpenBSD, Java OpenJDK, OpenSSL, openSUSE, openSUSE Leap, Oracle Communications, Oracle Directory Services Plus, Oracle Fusion Middleware, Oracle Internet Directory, Java Oracle, Solaris, Tuxedo, WebLogic, pfSense, Puppet, RHEL, Base SAS Software, SAS SAS/CONNECT, Slackware, Sophos AV, Splunk Enterprise, Stonesoft NGFW/VPN, stunnel, SUSE Linux Enterprise Desktop, SLES, Ubuntu, Unix (platform) ~ not comprehensive.
Severity: 2/4.
Consequences: data reading, data creation/edition.
Provenance: internet server.
Number of vulnerabilities in this bulletin: 2.
Creation date: 04/03/2015.
Revision date: 09/03/2015.
Identifiers: 122007, 1450666, 1610582, 1647054, 1698613, 1699051, 1699810, 1700225, 1700997, 1701485, 1902260, 1903541, 1963275, 1968485, 1973383, 55767, 7014463, 7022958, 9010028, ARUBA-PSA-2015-003, bulletinjan2015, c04556853, c04679334, c04773241, CERTFR-2015-AVI-108, CERTFR-2015-AVI-117, CERTFR-2015-AVI-146, CERTFR-2016-AVI-303, cisco-sa-20150310-ssl, cpuapr2017, cpujul2018, cpuoct2017, CTX216642, CVE-2015-0138, CVE-2015-0204, DSA-3125-1, FEDORA-2015-0512, FEDORA-2015-0601, FG-IR-15-007, FREAK, FreeBSD-SA-15:01.openssl, HPSBMU03345, HPSBUX03244, HPSBUX03334, JSA10679, MDVSA-2015:019, MDVSA-2015:062, MDVSA-2015:063, NetBSD-SA2015-006, NetBSD-SA2015-007, NTAP-20150205-0001, openSUSE-SU-2015:0130-1, openSUSE-SU-2016:0640-1, RHSA-2015:0066-01, RHSA-2015:0800-01, RHSA-2015:1020-01, RHSA-2015:1021-01, RHSA-2015:1091-01, SA40015, SA88, SA91, SB10108, SB10110, SOL16120, SOL16123, SOL16124, SOL16126, SOL16135, SOL16136, SOL16139, SP-CAAANXD, SPL-95203, SPL-95206, SSA:2015-009-01, SSRT101885, SSRT102000, 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, T1022075, USN-2459-1, VIGILANCE-VUL-16301, VN-2015-003_FREAK, VU#243585.

Description of the vulnerability

The TLS protocol uses a series of messages which have to be exchanged between the client and the server, before establishing a secured session.

Several cryptographic algorithms can be negotiated, such as algorithms allowed for USA export (less than 512 bits).

An attacker, located as a Man-in-the-Middle, can inject during the session initialization a message choosing an export algorithm. This message should generate an error, however some TLS clients accept it.

Note: the variant related to Windows is described in VIGILANCE-VUL-16332.

An attacker, located as a Man-in-the-Middle, can therefore force the Chrome, JSSE, LibReSSL, Mono or OpenSSL client to accept a weak export algorithm, in order to more easily capture or alter exchanged data.
Full Vigil@nce bulletin... (Free trial)
Our database contains other pages. You can request a free trial to read them.

Display information about WebSphere AS Traditional: