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 Fabric OS

vulnerability announce CVE-2016-0636

Oracle Java: code execution via Hotspot

Synthesis of the vulnerability

An attacker can use a vulnerability in Hotspot of Oracle Java, in order to run code in the web browser of the victim who loads a malicious Java applet.
Impacted products: FabricOS, Brocade Network Advisor, Brocade vTM, Debian, Fedora, Domino, Notes, QRadar SIEM, Java OpenJDK, openSUSE, openSUSE Leap, Java Oracle, RHEL, SUSE Linux Enterprise Desktop, SLES, Ubuntu.
Severity: 3/4.
Consequences: user access/rights.
Provenance: document.
Creation date: 24/03/2016.
Identifiers: 1984678, 1985875, 1987778, BSA-2016-006, CERTFR-2016-AVI-108, CVE-2016-0636, DLA-451-1, DSA-3558-1, FEDORA-2016-90ee071b21, FEDORA-2016-d5dd39a1d5, openSUSE-SU-2016:0971-1, openSUSE-SU-2016:0983-1, openSUSE-SU-2016:1004-1, openSUSE-SU-2016:1005-1, openSUSE-SU-2016:1042-1, RHSA-2016:0511-01, RHSA-2016:0512-01, RHSA-2016:0513-01, RHSA-2016:0514-01, RHSA-2016:0515-01, RHSA-2016:0516-01, SE-2012-01, SUSE-SU-2016:0956-1, SUSE-SU-2016:0957-1, SUSE-SU-2016:0959-1, USN-2942-1, VIGILANCE-VUL-19232.

Description of the vulnerability

The Oracle Java product uses the Hotspot compiler.

However, a vulnerability in Hotspot leads to code execution. Technical details are unknown, but it may be related to an incomplete fix for CVE-2013-5838.

An attacker can therefore use a vulnerability in Hotspot of Oracle Java, in order to run code in the web browser of the victim who loads a malicious Java applet.
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computer vulnerability alert CVE-2016-0701

OpenSSL: obtaining private exponent via DH Small Subgroups

Synthesis of the vulnerability

In some special configurations, an attacker can find the private DH exponent of the OpenSSL peer, in order to decrypt other sessions.
Impacted products: Blue Coat CAS, ProxyAV, ProxySG par Blue Coat, SGOS by Blue Coat, FabricOS, Brocade Network Advisor, Brocade vTM, ASA, AsyncOS, Cisco ESA, Cisco IPS, Nexus by Cisco, NX-OS, Cisco CUCM, Cisco Manager Attendant Console, Cisco IP Phone, Black Diamond, ExtremeXOS, Summit, BIG-IP Hardware, TMOS, Fedora, HP Switch, Tivoli Storage Manager, Tivoli Workload Scheduler, Juniper J-Series, Junos OS, Junos Space, NSM Central Manager, NSMXpress, Data ONTAP 7-Mode, NetScreen Firewall, ScreenOS, OpenSSL, openSUSE, Oracle Communications, Oracle DB, Oracle Fusion Middleware, Oracle Identity Management, Solaris, WebLogic, Puppet, stunnel, Ubuntu, VxWorks.
Severity: 2/4.
Consequences: data reading, data creation/edition.
Provenance: internet client.
Creation date: 28/01/2016.
Identifiers: 1979602, 2003480, 2003620, 2003673, 9010060, BSA-2016-005, bulletinjan2018, c05390893, CERTFR-2016-AVI-041, cisco-sa-20160129-openssl, cpujul2019, cpuoct2017, CVE-2016-0701, FEDORA-2016-527018d2ff, HPESBHF03703, JSA10759, NTAP-20160201-0001, openSUSE-SU-2016:0637-1, SA111, SOL33209124, SOL64009378, USN-2883-1, VIGILANCE-VUL-18836, VN-2016-002, VU#257823.

Description of the vulnerability

Since version 1.0.2, the OpenSSL library can generate DH unsafe parameters of style X9.42 (subgroup size "q"), to support the RFC 5114.

In this case, an attacker can find the private DH exponent of the peer, if the DH key is reused. The DH key is reused in the following cases:
 - SSL_CTX_set_tmp_dh() or SSL_set_tmp_dh() is used without the option SSL_OP_SINGLE_DH_USE set, which is rare.
 - SSL_CTX_set_tmp_dh_callback() or SSL_set_tmp_dh_callback() is used in an undocumented mode.
 - Static DH ciphersuites are used.

In some special configurations, an attacker can therefore find the private DH exponent of the OpenSSL peer, in order to decrypt other sessions.
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computer vulnerability announce CVE-2015-7973 CVE-2015-7974 CVE-2015-7975

NTP.org: multiple vulnerabilities

Synthesis of the vulnerability

An attacker can use several vulnerabilities of NTP.org.
Impacted products: SNS, Blue Coat CAS, FabricOS, Brocade Network Advisor, Brocade vTM, Cisco ASR, Cisco ACE, ASA, IOS by Cisco, IOS XE Cisco, IOS XR Cisco, Nexus by Cisco, NX-OS, Prime Collaboration Assurance, Cisco Prime DCNM, Prime Infrastructure, Cisco Prime LMS, Cisco PRSM, Cisco Router, Secure ACS, Cisco CUCM, Debian, BIG-IP Hardware, TMOS, Fedora, FreeBSD, HP Switch, AIX, Juniper J-Series, Junos OS, Junos Space, Meinberg NTP Server, NTP.org, openSUSE, openSUSE Leap, Palo Alto Firewall PA***, PAN-OS, RHEL, Slackware, SUSE Linux Enterprise Desktop, SLES, Ubuntu.
Severity: 2/4.
Consequences: privileged access/rights, user access/rights, data reading, denial of service on service.
Provenance: internet client.
Number of vulnerabilities in this bulletin: 11.
Creation date: 21/01/2016.
Identifiers: BSA-2016-005, BSA-2016-006, CERTFR-2016-AVI-045, cisco-sa-20160127-ntpd, CVE-2015-7973, CVE-2015-7974, CVE-2015-7975, CVE-2015-7976, CVE-2015-7977, CVE-2015-7978, CVE-2015-7979, CVE-2015-8138, CVE-2015-8139, CVE-2015-8140, CVE-2015-8158, DLA-559-1, DSA-3629-1, FEDORA-2016-34bc10a2c8, FEDORA-2016-89e0874533, FEDORA-2016-8bb1932088, FEDORA-2016-c3bd6a3496, FreeBSD-SA-16:09.ntp, HPESBHF03750, JSA10776, JSA10796, K00329831, K01324833, K06288381, openSUSE-SU-2016:1292-1, openSUSE-SU-2016:1329-1, openSUSE-SU-2016:1423-1, PAN-SA-2016-0019, RHSA-2016:0063-01, RHSA-2016:0780-01, RHSA-2016:1552-01, RHSA-2016:2583-02, SA113, SOL00329831, SOL01324833, SOL05046514, SOL06288381, SOL13304944, SOL21230183, SOL32790144, SOL71245322, SOL74363721, SSA:2016-054-04, STORM-2016-003, STORM-2016-004, SUSE-SU-2016:1175-1, SUSE-SU-2016:1177-1, SUSE-SU-2016:1247-1, SUSE-SU-2016:1278-1, SUSE-SU-2016:1291-1, SUSE-SU-2016:1311-1, SUSE-SU-2016:1471-1, SUSE-SU-2016:1912-1, SUSE-SU-2016:2094-1, USN-3096-1, VIGILANCE-VUL-18787.

Description of the vulnerability

Several vulnerabilities were announced in NTP.org.

An attacker can generate an infinite loop in ntpq, in order to trigger a denial of service. [severity:2/4; CVE-2015-8158]

The Zero Origin Timestamp value is not correctly checked. [severity:2/4; CVE-2015-8138]

An attacker can trigger a fatal error in Authenticated Broadcast Mode, in order to trigger a denial of service. [severity:2/4; CVE-2015-7979]

An attacker can trigger a fatal error in Recursive Traversal, in order to trigger a denial of service. [severity:2/4; CVE-2015-7978]

An attacker can force a NULL pointer to be dereferenced in reslist, in order to trigger a denial of service. [severity:2/4; CVE-2015-7977]

An attacker can use a filename with special characters in the "ntpq saveconfig" command. [severity:2/4; CVE-2015-7976]

An attacker can generate a buffer overflow in nextvar(), in order to trigger a denial of service, and possibly to run code. [severity:2/4; CVE-2015-7975]

An attacker can bypass security features in Skeleton Key, in order to escalate his privileges. [severity:2/4; CVE-2015-7974]

An attacker can use a replay attack against Deja Vu. [severity:2/4; CVE-2015-7973]

An attacker can use a replay attack against ntpq. [severity:2/4; CVE-2015-8140]

An attacker can bypass security features in ntpq and ntpdc, in order to obtain sensitive information. [severity:2/4; CVE-2015-8139]
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computer vulnerability note CVE-2016-0777 CVE-2016-0778

OpenSSH: key disclosure via Roaming

Synthesis of the vulnerability

An attacker, who owns a malicious SSH server, can invite a client to connect with OpenSSH, and then call the Roaming feature, in order to obtain sensitive information about keys used by the SSH client.
Impacted products: DCFM Enterprise, FabricOS, Brocade Network Advisor, Brocade vTM, Debian, Black Diamond, ExtremeXOS, Summit, Fedora, FreeBSD, AIX, WebSphere MQ, Juniper J-Series, Junos OS, NSM Central Manager, NSMXpress, Meinberg NTP Server, Data ONTAP 7-Mode, OpenBSD, OpenSSH, openSUSE, openSUSE Leap, Solaris, Palo Alto Firewall PA***, PAN-OS, RHEL, Slackware, SUSE Linux Enterprise Desktop, SLES, Symfony, Synology DS***, Synology RS***, Ubuntu.
Severity: 3/4.
Consequences: data reading, denial of service on client.
Provenance: internet server.
Number of vulnerabilities in this bulletin: 2.
Creation date: 14/01/2016.
Revision date: 14/01/2016.
Identifiers: 046062, 7043086, 9010059, BSA-2016-002, bulletinoct2015, CERTFR-2016-AVI-022, CERTFR-2016-AVI-128, CERTFR-2017-AVI-012, CERTFR-2017-AVI-022, CVE-2016-0777, CVE-2016-0778, DSA-3446-1, FEDORA-2016-2e89eba0c1, FEDORA-2016-4556904561, FEDORA-2016-67c6ef0d4f, FEDORA-2016-c330264861, FreeBSD-SA-16:07.openssh, JSA10734, JSA10774, NTAP-20160126-0001, openSUSE-SU-2016:0127-1, openSUSE-SU-2016:0128-1, openSUSE-SU-2016:0144-1, openSUSE-SU-2016:0145-1, PAN-SA-2016-0011, RHSA-2016:0043-01, SSA:2016-014-01, SUSE-SU-2016:0117-1, SUSE-SU-2016:0118-1, SUSE-SU-2016:0119-1, SUSE-SU-2016:0120-1, USN-2869-1, VIGILANCE-VUL-18729, VN-2016-001, VU#456088.

Description of the vulnerability

The OpenSSH product implements a SSH client and server.

The SSH client contains an undocumented experimental feature named Roaming, which is implemented in the roaming_client.c file. This feature is enabled by default, and it is used to restart an old session. It is impacted by two vulnerabilities.

The Roaming feature can be used by a SSH server to read the SSH client memory, to obtain its keys. [severity:3/4; CVE-2016-0777]

The Roaming feature can be used by a SSH server to trigger an overflow and a descriptor leak in the SSH client, in order to generate a denial of service. [severity:2/4; CVE-2016-0778]

An attacker, who owns a malicious SSH server, can therefore invite a client to connect with OpenSSH, and then call the Roaming feature, in order to obtain sensitive information about keys used by the SSH client.
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computer vulnerability announce CVE-2015-3196

OpenSSL: use after free via PSK Identify Hint

Synthesis of the vulnerability

An attacker can force the usage of a freed memory area via PSK Identify Hint of an OpenSSL multi-threaded client, in order to trigger a denial of service, and possibly to run code.
Impacted products: FabricOS, Brocade Network Advisor, Brocade vTM, Cisco ASR, Cisco ATA, Cisco AnyConnect Secure Mobility Client, ASA, AsyncOS, Cisco Content SMA, Cisco ESA, Nexus by Cisco, NX-OS, Cisco Prime Access Registrar, Prime Collaboration Assurance, Cisco Prime DCNM, Prime Infrastructure, Cisco PRSM, Secure ACS, Cisco CUCM, Cisco MeetingPlace, Cisco WSA, Cisco Wireless Controller, Debian, BIG-IP Hardware, TMOS, Fedora, FortiAnalyzer, FortiAnalyzer Virtual Appliance, FortiClient, FortiGate, FortiGate Virtual Appliance, FortiManager, FortiManager Virtual Appliance, FortiOS, FreeBSD, HP Switch, AIX, IRAD, QRadar SIEM, Tivoli Storage Manager, Tivoli Workload Scheduler, IVE OS, Juniper J-Series, Junos OS, Junos Space, MAG Series by Juniper, NSM Central Manager, NSMXpress, Juniper SA, Juniper SBR, McAfee Email Gateway, Data ONTAP 7-Mode, NetScreen Firewall, ScreenOS, OpenSSL, openSUSE, openSUSE Leap, Oracle Communications, Solaris, pfSense, Pulse Connect Secure, MAG Series by Pulse Secure, Pulse Secure SBR, Puppet, RHEL, Slackware, Synology DS***, Synology RS***, Ubuntu.
Severity: 2/4.
Consequences: user access/rights, denial of service on service, denial of service on client.
Provenance: internet server.
Creation date: 03/12/2015.
Identifiers: 1972951, 1976113, 1976148, 1981612, 2003480, 2003620, 2003673, 9010051, BSA-2016-006, bulletinjan2016, c05398322, CERTFR-2015-AVI-517, cisco-sa-20151204-openssl, cpuoct2017, CVE-2015-3196, DSA-3413-1, FEDORA-2015-d87d60b9a9, FreeBSD-SA-15:26.openssl, HPESBHF03709, JSA10759, NTAP-20151207-0001, openSUSE-SU-2015:2288-1, openSUSE-SU-2015:2289-1, RHSA-2015:2617-01, SA40100, SB10203, SOL12824341, SOL30714460, SOL55540723, SOL86772626, SSA:2015-349-04, USN-2830-1, VIGILANCE-VUL-18437.

Description of the vulnerability

The OpenSSL library can be used by a multi-threaded client.

However, in this case, the SSL_CTX structure does not contain an updated PSK Identify Hint. OpenSSL can thus free twice the same memory area.

An attacker can therefore force the usage of a freed memory area via PSK Identify Hint of an OpenSSL multi-threaded client, in order to trigger a denial of service, and possibly to run code.
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computer vulnerability alert CVE-2015-3195

OpenSSL: information disclosure via X509_ATTRIBUTE

Synthesis of the vulnerability

An attacker can read a memory fragment via X509_ATTRIBUTE of OpenSSL processing PKCS#7 or CMS data, in order to obtain sensitive information.
Impacted products: OpenOffice, Tomcat, ProxyAV, ProxySG par Blue Coat, SGOS by Blue Coat, FabricOS, Brocade Network Advisor, Brocade vTM, Cisco ASR, Cisco ATA, Cisco AnyConnect Secure Mobility Client, ASA, AsyncOS, Cisco Content SMA, Cisco ESA, Nexus by Cisco, NX-OS, Cisco Prime Access Registrar, Prime Collaboration Assurance, Cisco Prime DCNM, Prime Infrastructure, Cisco PRSM, Secure ACS, Cisco CUCM, Cisco MeetingPlace, Cisco WSA, Cisco Wireless Controller, Debian, BIG-IP Hardware, TMOS, Fedora, FortiAnalyzer, FortiAnalyzer Virtual Appliance, FortiClient, FortiGate, FortiGate Virtual Appliance, FortiManager, FortiManager Virtual Appliance, FortiOS, FreeBSD, HP Switch, AIX, IRAD, QRadar SIEM, Tivoli Storage Manager, IVE OS, Juniper J-Series, Junos OS, Junos Space, MAG Series by Juniper, NSM Central Manager, NSMXpress, Juniper SA, Juniper SBR, MariaDB ~ precise, McAfee Email Gateway, MySQL Enterprise, Data ONTAP 7-Mode, NetScreen Firewall, ScreenOS, OpenBSD, OpenSSL, openSUSE, openSUSE Leap, Oracle Communications, Solaris, Palo Alto Firewall PA***, PAN-OS, pfSense, Pulse Connect Secure, MAG Series by Pulse Secure, Pulse Secure SBR, Puppet, RHEL, JBoss EAP by Red Hat, Slackware, stunnel, SUSE Linux Enterprise Desktop, SLES, Synology DS***, Synology RS***, Ubuntu, Unix (platform) ~ not comprehensive.
Severity: 2/4.
Consequences: data reading.
Provenance: user shell.
Creation date: 03/12/2015.
Identifiers: 1972951, 1976113, 1976148, 1985739, 2003480, 2003620, 2003673, 9010051, BSA-2016-006, bulletinjan2016, c05398322, CERTFR-2015-AVI-517, CERTFR-2016-AVI-128, cisco-sa-20151204-openssl, cpuapr2017, cpuoct2016, cpuoct2017, CVE-2015-3195, DSA-3413-1, FEDORA-2015-605de37b7f, FEDORA-2015-d87d60b9a9, FreeBSD-SA-15:26.openssl, HPESBHF03709, JSA10733, JSA10759, NTAP-20151207-0001, openSUSE-SU-2015:2288-1, openSUSE-SU-2015:2289-1, openSUSE-SU-2015:2318-1, openSUSE-SU-2015:2349-1, openSUSE-SU-2016:0637-1, openSUSE-SU-2016:0640-1, openSUSE-SU-2016:1327-1, PAN-SA-2016-0020, PAN-SA-2016-0028, RHSA-2015:2616-01, RHSA-2015:2617-01, RHSA-2016:2054-01, RHSA-2016:2055-01, RHSA-2016:2056-01, SA105, SA40100, SB10203, SOL12824341, SOL30714460, SOL55540723, SOL86772626, SSA:2015-349-04, SUSE-SU-2016:0678-1, USN-2830-1, VIGILANCE-VUL-18436.

Description of the vulnerability

The OpenSSL library supports the PKCS#7 and CMS formats.

However, if an X509_ATTRIBUTE structure is malformed, OpenSSL does not initialize a memory area before returning it to the user reading PKCS#7 or CMS data.

It can be noted that SSL/TLS is not impacted.

An attacker can therefore read a memory fragment via X509_ATTRIBUTE of OpenSSL processing PKCS#7 or CMS data, in order to obtain sensitive information.
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computer vulnerability CVE-2015-3194

OpenSSL: NULL pointer dereference via Certificate Verification

Synthesis of the vulnerability

An attacker can force a NULL pointer to be dereferenced during the certificate verification of OpenSSL (in client or server mode), in order to trigger a denial of service.
Impacted products: SES, SNS, Tomcat, Mac OS X, ProxyAV, ProxySG par Blue Coat, SGOS by Blue Coat, FabricOS, Brocade Network Advisor, Brocade vTM, Cisco ASR, Cisco ATA, Cisco AnyConnect Secure Mobility Client, ASA, AsyncOS, Cisco Content SMA, Cisco ESA, Nexus by Cisco, NX-OS, Cisco Prime Access Registrar, Prime Collaboration Assurance, Cisco Prime DCNM, Prime Infrastructure, Cisco PRSM, Secure ACS, Cisco CUCM, Cisco MeetingPlace, Cisco WSA, Cisco Wireless Controller, Debian, BIG-IP Hardware, TMOS, Fedora, FortiAnalyzer, FortiAnalyzer Virtual Appliance, FortiClient, FortiGate, FortiGate Virtual Appliance, FortiManager, FortiManager Virtual Appliance, FortiOS, FreeBSD, HP Switch, AIX, IRAD, QRadar SIEM, Tivoli Storage Manager, WebSphere MQ, IVE OS, Juniper J-Series, Junos OS, Junos Space, MAG Series by Juniper, NSM Central Manager, NSMXpress, Juniper SA, Juniper SBR, MariaDB ~ precise, McAfee Email Gateway, MySQL Enterprise, Data ONTAP 7-Mode, NETASQ, NetScreen Firewall, ScreenOS, Nodejs Core, OpenBSD, OpenSSL, openSUSE, openSUSE Leap, Oracle Communications, Solaris, pfSense, Pulse Connect Secure, MAG Series by Pulse Secure, Pulse Secure SBR, Puppet, RHEL, Slackware, stunnel, Synology DS***, Synology RS***, Ubuntu, Unix (platform) ~ not comprehensive.
Severity: 2/4.
Consequences: denial of service on service, denial of service on client.
Provenance: internet client.
Creation date: 03/12/2015.
Identifiers: 1972951, 1976113, 1976148, 1985739, 1986593, 2003480, 2003620, 2003673, 9010051, BSA-2016-006, bulletinjan2016, c05398322, CERTFR-2015-AVI-517, cisco-sa-20151204-openssl, cpuoct2017, CVE-2015-3194, DSA-3413-1, FEDORA-2015-605de37b7f, FEDORA-2015-d87d60b9a9, FreeBSD-SA-15:26.openssl, HPESBHF03709, HT209139, JSA10759, NTAP-20151207-0001, openSUSE-SU-2015:2288-1, openSUSE-SU-2015:2289-1, openSUSE-SU-2015:2318-1, openSUSE-SU-2016:0637-1, openSUSE-SU-2016:1327-1, RHSA-2015:2617-01, SA105, SA40100, SB10203, SOL12824341, SOL30714460, SOL55540723, SOL86772626, SSA:2015-349-04, STORM-2015-017, USN-2830-1, VIGILANCE-VUL-18435.

Description of the vulnerability

The OpenSSL library can use the RSA PSS algorithm to check the validity of X.509 certificates.

However, if the "mask generation" parameter is missing during the verification of a signature in ASN.1 format, OpenSSL does not check if a pointer is NULL, before using it.

An attacker can therefore force a NULL pointer to be dereferenced during the certificate verification of OpenSSL (in client or server mode), in order to trigger a denial of service.
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vulnerability note CVE-2015-3193

OpenSSL: disclosure of DH private key via BN_mod_exp

Synthesis of the vulnerability

An attacker, with a significant amount of resources, can attack the DH algorithm, in some OpenSSL usages, in order to compute the private key.
Impacted products: Tomcat, FabricOS, Brocade Network Advisor, Brocade vTM, Cisco ASR, Cisco ATA, Cisco AnyConnect Secure Mobility Client, ASA, AsyncOS, Cisco Content SMA, Cisco ESA, Nexus by Cisco, NX-OS, Cisco Prime Access Registrar, Prime Collaboration Assurance, Cisco Prime DCNM, Prime Infrastructure, Cisco PRSM, Secure ACS, Cisco CUCM, Cisco MeetingPlace, Cisco WSA, Cisco Wireless Controller, BIG-IP Hardware, TMOS, Fedora, FortiAnalyzer, FortiAnalyzer Virtual Appliance, FortiClient, FortiGate, FortiGate Virtual Appliance, FortiManager, FortiManager Virtual Appliance, FortiOS, HP Switch, IRAD, Tivoli Storage Manager, BIND, IVE OS, Juniper J-Series, Junos OS, Junos Space, MAG Series by Juniper, NSM Central Manager, NSMXpress, Juniper SA, Juniper SBR, McAfee Email Gateway, Data ONTAP 7-Mode, NetScreen Firewall, ScreenOS, Nodejs Core, OpenSSL, Oracle Communications, Solaris, Pulse Connect Secure, MAG Series by Pulse Secure, Pulse Secure SBR, Puppet, Slackware, stunnel, Ubuntu.
Severity: 1/4.
Consequences: data reading.
Provenance: internet client.
Creation date: 03/12/2015.
Identifiers: 1972951, 2003480, 2003620, 2003673, 9010051, BSA-2016-006, bulletinjan2018, c05398322, CERTFR-2015-AVI-517, cisco-sa-20151204-openssl, cpuoct2017, CVE-2015-3193, FEDORA-2015-605de37b7f, HPESBHF03709, JSA10759, NTAP-20151207-0001, SA40100, SB10203, SOL12824341, SOL30714460, SOL55540723, SOL86772626, SSA:2015-349-04, USN-2830-1, VIGILANCE-VUL-18434.

Description of the vulnerability

The OpenSSL library uses the BN_mod_exp() function to perform a modular exponentiation on large numbers.

However, on an x86_64 processor, the BN_mod_exp() function can generate an incorrect result during the Montgomery Squaring procedure.

An attacker, with a significant amount of resources, can therefore attack the DH algorithm, in some OpenSSL usages, in order to compute the private key.
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vulnerability note 18404

Brocade FabricOS: multiple vulnerabilities

Synthesis of the vulnerability

A local attacker can use several vulnerabilities of Brocade FabricOS, in order to obtain sensitive information or to escalate his privileges.
Impacted products: FabricOS.
Severity: 2/4.
Consequences: administrator access/rights, privileged access/rights, user access/rights, data reading, data creation/edition.
Provenance: user shell.
Number of vulnerabilities in this bulletin: 9.
Creation date: 01/12/2015.
Identifiers: VIGILANCE-VUL-18404.

Description of the vulnerability

Several vulnerabilities were announced in Brocade FabricOS.

An attacker can login on the "root" or "factory" account with the default password, in order to administer the system. [severity:2/4]

An attacker can read the /etc/passwd file, in order to obtain the hash of passwords. [severity:1/4]

Several accounts have the uid zero. [severity:1/4]

An attacker can write in several files (/etc/fabos/hil_wwn, /etc/fabos/cfgsave/factory/etc/hosts, /etc/raslog.ext, /etc/raslog.int, /etc/ipadmd_log.txt, /etc/hosts.0), in order to potentially escalate his privileges. [severity:1/4]

An attacker can access to the home directory of the basicswitchadmin user, in order to read sensitive information. [severity:1/4]

Permissions of the /etc/shadow file are not 0400. [severity:1/4]

The /tmp and /mnt partitions are mounted with no security options. [severity:1/4]

An attacker can edit the suid file /etc/fabos/hil_wwn, in order to escalate his privileges. [severity:2/4]

Several simple files have the suid bit, so an attacker can potentially escalate his privileges. [severity:1/4]

A local attacker can therefore use several vulnerabilities of Brocade FabricOS, in order to obtain sensitive information or to escalate his privileges.
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vulnerability announce CVE-2015-5276

GNU GCC: predictability of std-random_device

Synthesis of the vulnerability

An attacker can predict some randoms generated by C++ programs compiled with GNU GCC.
Impacted products: FabricOS, Brocade Network Advisor, Brocade vTM, GCC, openSUSE Leap, SUSE Linux Enterprise Desktop, SLES.
Severity: 2/4.
Consequences: data reading.
Provenance: document.
Creation date: 10/11/2015.
Identifiers: BSA-2016-006, CVE-2015-5276, openSUSE-SU-2015:1946-1, openSUSE-SU-2016:1069-1, SUSE-SU-2017:2235-1, VIGILANCE-VUL-18272.

Description of the vulnerability

The GNU GCC product contains the libstdc++ library, which implements the std::random_device class.

The std::random_device::_M_getval() method of libstdc++ is used to generate random numbers from a file. However, it does not check the return value of the read() function. If an error occurs (blocked file), random data are thus initialized from the stack content.

An attacker can therefore predict some randoms generated by C++ programs compiled with GNU GCC.
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