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 IPSO

computer vulnerability announce CVE-2014-9293 CVE-2014-9294 CVE-2014-9295

NTP.org: multiple vulnerabilities

Synthesis of the vulnerability

An attacker can use several vulnerabilities of NTP.org.
Impacted products: GAiA, CheckPoint IP Appliance, IPSO, CheckPoint Power-1 Appliance, CheckPoint Security Appliance, CheckPoint Smart-1, CheckPoint VSX-1, IOS XR Cisco, Nexus by Cisco, NX-OS, Cisco CUCM, Cisco Unified CCX, Clearswift Email Gateway, Debian, Black Diamond, ExtremeXOS, Summit, BIG-IP Hardware, TMOS, Fedora, FreeBSD, HP Switch, HP-UX, AIX, Juniper J-Series, Junos OS, Junos Space, NSMXpress, Meinberg NTP Server, NetBSD, NTP.org, openSUSE, Oracle Communications, Solaris, RHEL, ROX, RuggedSwitch, Slackware, SUSE Linux Enterprise Desktop, SLES, Ubuntu.
Severity: 3/4.
Consequences: privileged access/rights, user access/rights, data reading, denial of service on service.
Provenance: intranet client.
Number of vulnerabilities in this bulletin: 6.
Creation date: 19/12/2014.
Revision date: 17/02/2016.
Identifiers: c04554677, c04574882, c04916783, CERTFR-2014-AVI-537, CERTFR-2014-AVI-538, CERTFR-2016-AVI-148, cisco-sa-20141222-ntpd, cpuoct2016, CVE-2014-9293, CVE-2014-9294, CVE-2014-9295, CVE-2014-9296, DSA-3108-1, FEDORA-2014-17361, FEDORA-2014-17367, FEDORA-2014-17395, FreeBSD-SA-14:31.ntp, HPSBHF03432, HPSBPV03266, HPSBUX03240, JSA10663, MBGSA-1405, MDVSA-2015:003, MDVSA-2015:140, NetBSD-SA2015-003, openSUSE-SU-2014:1670-1, openSUSE-SU-2014:1680-1, RHSA-2014:2024-01, RHSA-2014:2025-01, RHSA-2015:0104-01, sk103825, SOL15933, SOL15934, SOL15935, SOL15936, SSA:2014-356-01, SSA-671683, SSRT101872, SUSE-SU-2014:1686-1, SUSE-SU-2014:1686-2, SUSE-SU-2014:1686-3, SUSE-SU-2014:1690-1, SUSE-SU-2015:0259-1, SUSE-SU-2015:0259-2, SUSE-SU-2015:0259-3, SUSE-SU-2015:0274-1, SUSE-SU-2015:0322-1, USN-2449-1, VIGILANCE-VUL-15867, VN-2014-005, VU#852879.

Description of the vulnerability

Several vulnerabilities were announced in NTP.org.

An attacker can predict the default key generated by config_auth(), in order to bypass the authentication. [severity:2/4; CVE-2014-9293]

An attacker can predict the key generated by ntp-keygen, in order to decrypt sessions. [severity:2/4; CVE-2014-9294]

An attacker can generate a buffer overflow in crypto_recv(), in order to trigger a denial of service, and possibly to execute code. [severity:3/4; CVE-2014-9295]

An attacker can generate a buffer overflow in ctl_putdata(), in order to trigger a denial of service, and possibly to execute code. [severity:3/4; CVE-2014-9295]

An attacker can generate a buffer overflow in configure(), in order to trigger a denial of service, and possibly to execute code. [severity:3/4; CVE-2014-9295]

An attacker can trigger an error in receive(), which is not detected. [severity:1/4; CVE-2014-9296]
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computer vulnerability CVE-2015-5300

NTP.org: altering time via Small-step/Big-step

Synthesis of the vulnerability

An attacker can act as a Man-in-the-Middle of NTP.org, in order to change the client time.
Impacted products: CheckPoint IP Appliance, IPSO, XenServer, Fedora, FreeBSD, AIX, Meinberg NTP Server, NTP.org, openSUSE, openSUSE Leap, Solaris, Slackware, SUSE Linux Enterprise Desktop, SLES.
Severity: 2/4.
Consequences: data creation/edition.
Provenance: internet server.
Creation date: 08/01/2016.
Identifiers: 2956, bulletinjan2016, CTX220112, CVE-2015-5300, FEDORA-2016-34bc10a2c8, FreeBSD-SA-16:02.ntp, openSUSE-SU-2016:1292-1, openSUSE-SU-2016:1329-1, openSUSE-SU-2016:1423-1, sk109942, SSA:2016-054-04, 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, VIGILANCE-VUL-18665.

Description of the vulnerability

The ntpd daemon of NTP.org manages the local time by receiving information from several time servers with upper stratum.

However, if an attacker acts as a Man-in-the-Middle, and sends invalid information to NTP.org, the daemon restarts. Then, during the restart, the attacker can continue to spoof upper time servers, to change the time. If ntpd is started without the "-g" option, the time change is limited to 900 seconds.

An attacker can therefore act as a Man-in-the-Middle of NTP.org, in order to change the client time.
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computer vulnerability alert CVE-2014-8730 CVE-2015-2774

Check Point, Cisco, IBM, F5, FortiOS: information disclosure via POODLE on TLS

Synthesis of the vulnerability

An attacker, located as a Man-in-the-Middle, can decrypt a Terminating TLS session, in order to obtain sensitive information.
Impacted products: GAiA, CheckPoint IP Appliance, IPSO, CheckPoint Power-1 Appliance, SecurePlatform, CheckPoint Security Appliance, CheckPoint Smart-1, CheckPoint VSX-1, Cisco ACE, ASA, BIG-IP Hardware, TMOS, Fedora, FortiGate, FortiGate Virtual Appliance, FortiOS, DB2 UDB, Domino, Informix Server, Tivoli Directory Server, openSUSE, Solaris, Palo Alto Firewall PA***, PAN-OS, Ubuntu.
Severity: 3/4.
Consequences: data reading.
Provenance: internet client.
Number of vulnerabilities in this bulletin: 2.
Creation date: 09/12/2014.
Revision date: 17/12/2014.
Identifiers: 1450666, 1610582, 1647054, 1692906, 1693052, 1693142, bulletinjul2017, CERTFR-2014-AVI-533, CSCus08101, CSCus09311, CVE-2014-8730, CVE-2015-2774, FEDORA-2015-12923, FEDORA-2015-12970, openSUSE-SU-2016:0523-1, sk103683, SOL15882, USN-3571-1, VIGILANCE-VUL-15756.

Description of the vulnerability

The VIGILANCE-VUL-15485 (POODLE) vulnerability originates from an incorrect management of SSLv3 padding.

The F5 BIG-IP product can be configured to "terminate" SSL/TLS sessions. However, even when TLS is used, this BIG-IP feature uses the SSLv3 function to manage the padding. TLS sessions are thus also vulnerable to POODLE.

The same vulnerability also impacts Check Point, Cisco, IBM and Fortinet products.

An attacker, located as a Man-in-the-Middle, can therefore decrypt a Terminating TLS session, in order to obtain sensitive information.
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computer vulnerability alert CVE-2014-8951

Check Point Security Gateway: denial of service via UserCheck

Synthesis of the vulnerability

An attacker can generate an error in UserCheck of Check Point Security Gateway, in order to trigger a denial of service.
Impacted products: GAiA, CheckPoint IP Appliance, IPSO, SecurePlatform, CheckPoint Security Appliance, CheckPoint Security Gateway.
Severity: 2/4.
Consequences: denial of service on server, denial of service on service.
Provenance: internet client.
Creation date: 17/11/2014.
Identifiers: CVE-2014-8951, sk100505, VIGILANCE-VUL-15656.

Description of the vulnerability

The UserCheck feature can be enabled on the Check Point Security Gateway product.

However, a redirect to the UserCheck page triggers a fatal error in uc_set_redirect_url().

An attacker can therefore generate an error in UserCheck of Check Point Security Gateway, in order to trigger a denial of service.
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computer vulnerability CVE-2014-8950

Check Point Security Gateway: denial of service via HTTPS

Synthesis of the vulnerability

An attacker can send a malicious HTTPS packet to Check Point Security Gateway, in order to trigger a denial of service.
Impacted products: GAiA, CheckPoint IP Appliance, IPSO, SecurePlatform, CheckPoint Security Appliance, CheckPoint Security Gateway.
Severity: 2/4.
Consequences: denial of service on server, denial of service on service.
Provenance: internet client.
Creation date: 17/11/2014.
Identifiers: CVE-2014-8950, sk98935, VIGILANCE-VUL-15655.

Description of the vulnerability

The URL Filtering or Identity Awareness feature can be enabled on the Check Point Security Gateway product.

However, when a malicious HTTPS packet is received, a fatal error occurs.

An attacker can therefore send a malicious HTTPS packet to Check Point Security Gateway, in order to trigger a denial of service.
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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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vulnerability alert CVE-2014-6278

bash: command execution in the function parser

Synthesis of the vulnerability

An attacker can define a special environment variable, which is transmitted (via CGI or OpenSSH for example) to bash, in order to execute code.
Impacted products: GAiA, CheckPoint IP Appliance, IPSO, SecurePlatform, CheckPoint Security Appliance, CheckPoint Smart-1, CheckPoint VSX-1, XenServer, Clearswift Email Gateway, Clearswift Web Gateway, Avamar, EMC CAVA, EMC CEE, EMC CEPA, Celerra FAST, Celerra NS, Celerra NX4, EMC CMDCE, Connectrix Switch, NetWorker, PowerPath, Unisphere EMC, VNX Operating Environment, VNX Series, BIG-IP Hardware, TMOS, HP Operations, AIX, IVE OS, Junos Space, MAG Series by Juniper, NSM Central Manager, NSMXpress, Juniper SA, Juniper UAC, McAfee Email and Web Security, McAfee Email Gateway, McAfee MOVE AntiVirus, McAfee NSP, McAfee NGFW, McAfee Web Gateway, openSUSE, openSUSE Leap, Solaris, RSA Authentication Manager, ROX, RuggedSwitch, Slackware, Stonesoft NGFW/VPN, Ubuntu, Unix (platform) ~ not comprehensive, ESX, vCenter Server, VMware vSphere.
Severity: 3/4.
Consequences: user access/rights.
Provenance: internet client.
Creation date: 29/09/2014.
Identifiers: 193355, 193866, 194029, 194064, 194669, 480931, c04475942, c04479492, CERTFR-2014-AVI-403, CERTFR-2014-AVI-415, CERTFR-2014-AVI-480, CTX200217, CTX200223, CVE-2014-6278, ESA-2014-111, ESA-2014-123, ESA-2014-124, ESA-2014-125, ESA-2014-126, ESA-2014-127, ESA-2014-128, ESA-2014-133, ESA-2014-136, ESA-2014-150, ESA-2014-151, ESA-2014-152, ESA-2014-162, HPSBGN03138, HPSBMU03144, JSA10648, JSA10661, MDVSA-2015:164, openSUSE-SU-2014:1310-1, openSUSE-SU-2016:2961-1, SB10085, sk102673, SOL15629, SSA:2014-272-01, SSA-860967, T1021272, USN-2380-1, VIGILANCE-VUL-15421, VMSA-2014-0010, VMSA-2014-0010.10, VMSA-2014-0010.11, VMSA-2014-0010.12, VMSA-2014-0010.13, VMSA-2014-0010.2, VMSA-2014-0010.4, VMSA-2014-0010.7, VMSA-2014-0010.8, VMSA-2014-0010.9.

Description of the vulnerability

The bash interpreter can use functions.

However, when bash parses the source code to create the function, it directly executes commands located at some places.

This vulnerability can be used with the same attack vector than VIGILANCE-VUL-15399.

An attacker can therefore define a special environment variable, which is transmitted (via CGI or OpenSSH for example) to bash, in order to execute code.
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vulnerability CVE-2014-6277

bash: memory corruption in the function parser

Synthesis of the vulnerability

An attacker can define a special environment variable, which is transmitted (via CGI or OpenSSH for example) to bash, in order to execute code.
Impacted products: GAiA, CheckPoint IP Appliance, IPSO, SecurePlatform, CheckPoint Security Appliance, CheckPoint Smart-1, CheckPoint VSX-1, XenServer, Clearswift Email Gateway, Clearswift Web Gateway, Avamar, EMC CAVA, EMC CEE, EMC CEPA, Celerra FAST, Celerra NS, Celerra NX4, EMC CMDCE, Connectrix Switch, NetWorker, PowerPath, Unisphere EMC, VNX Operating Environment, VNX Series, BIG-IP Hardware, TMOS, HP Operations, AIX, IVE OS, Junos Space, MAG Series by Juniper, NSM Central Manager, NSMXpress, Juniper SA, Juniper UAC, McAfee Email and Web Security, McAfee Email Gateway, McAfee MOVE AntiVirus, McAfee NSP, McAfee NGFW, McAfee Web Gateway, openSUSE, openSUSE Leap, Solaris, RealPresence Collaboration Server, RealPresence Distributed Media Application, Polycom VBP, RSA Authentication Manager, ROX, RuggedSwitch, Slackware, Stonesoft NGFW/VPN, Ubuntu, Unix (platform) ~ not comprehensive, ESX, vCenter Server, VMware vSphere.
Severity: 3/4.
Consequences: user access/rights, denial of service on service, denial of service on client.
Provenance: internet client.
Creation date: 29/09/2014.
Identifiers: 193355, 193866, 194029, 194064, 194669, 480931, c04475942, c04479492, CERTFR-2014-AVI-403, CERTFR-2014-AVI-415, CERTFR-2014-AVI-480, CTX200217, CTX200223, CVE-2014-6277, ESA-2014-111, ESA-2014-123, ESA-2014-124, ESA-2014-125, ESA-2014-126, ESA-2014-127, ESA-2014-128, ESA-2014-133, ESA-2014-136, ESA-2014-150, ESA-2014-151, ESA-2014-152, ESA-2014-162, HPSBGN03138, HPSBMU03144, JSA10648, JSA10661, MDVSA-2015:164, openSUSE-SU-2014:1310-1, openSUSE-SU-2016:2961-1, SB10085, sk102673, SOL15629, SSA:2014-272-01, SSA-860967, T1021272, USN-2380-1, VIGILANCE-VUL-15420, VMSA-2014-0010, VMSA-2014-0010.10, VMSA-2014-0010.11, VMSA-2014-0010.12, VMSA-2014-0010.13, VMSA-2014-0010.2, VMSA-2014-0010.4, VMSA-2014-0010.7, VMSA-2014-0010.8, VMSA-2014-0010.9.

Description of the vulnerability

The bash interpreter can use functions.

However, when bash parses the source code to create the function, it corrupts its memory.

This vulnerability can be used with the same attack vector than VIGILANCE-VUL-15399.

An attacker can therefore define a special environment variable, which is transmitted (via CGI or OpenSSH for example) to bash, in order to execute code.
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computer vulnerability note CVE-2014-7186 CVE-2014-7187

bash: two denial of service

Synthesis of the vulnerability

An attacker can use several vulnerabilities of bash.
Impacted products: GAiA, CheckPoint IP Appliance, IPSO, SecurePlatform, CheckPoint Security Appliance, CheckPoint Smart-1, CheckPoint VSX-1, XenServer, Clearswift Email Gateway, Clearswift Web Gateway, Avamar, EMC CAVA, EMC CEE, EMC CEPA, Celerra FAST, Celerra NS, Celerra NX4, EMC CMDCE, Connectrix Switch, NetWorker, PowerPath, Unisphere EMC, VNX Operating Environment, VNX Series, BIG-IP Hardware, TMOS, HP Operations, AIX, IVE OS, Junos Space, MAG Series by Juniper, NSM Central Manager, NSMXpress, Juniper SA, Juniper UAC, McAfee Email and Web Security, McAfee Email Gateway, McAfee MOVE AntiVirus, McAfee NSP, McAfee NGFW, McAfee Web Gateway, openSUSE, Solaris, RealPresence Collaboration Server, RealPresence Distributed Media Application, Polycom VBP, RHEL, RSA Authentication Manager, ROX, RuggedSwitch, Stonesoft NGFW/VPN, SUSE Linux Enterprise Desktop, SLES, Ubuntu, Unix (platform) ~ not comprehensive, ESX, vCenter Server, VMware vSphere.
Severity: 1/4.
Consequences: denial of service on service.
Provenance: document.
Number of vulnerabilities in this bulletin: 2.
Creation date: 29/09/2014.
Identifiers: 193355, 193866, 194029, 194064, 194669, 480931, c04475942, c04479492, CERTFR-2014-AVI-403, CERTFR-2014-AVI-415, CERTFR-2014-AVI-480, CTX200217, CTX200223, CVE-2014-7186, CVE-2014-7187, ESA-2014-111, ESA-2014-123, ESA-2014-124, ESA-2014-125, ESA-2014-126, ESA-2014-127, ESA-2014-128, ESA-2014-133, ESA-2014-136, ESA-2014-150, ESA-2014-151, ESA-2014-152, ESA-2014-162, HPSBGN03138, HPSBMU03144, JSA10648, JSA10661, MDVSA-2015:164, openSUSE-SU-2014:1229-1, openSUSE-SU-2014:1242-1, openSUSE-SU-2014:1248-1, openSUSE-SU-2014:1308-1, openSUSE-SU-2014:1310-1, RHSA-2014:1311-01, RHSA-2014:1312-01, RHSA-2014:1354-01, RHSA-2014:1865-01, SB10085, sk102673, SOL15629, SSA-860967, SUSE-SU-2014:1247-1, SUSE-SU-2014:1247-2, T1021272, USN-2364-1, VIGILANCE-VUL-15419, VMSA-2014-0010, VMSA-2014-0010.10, VMSA-2014-0010.11, VMSA-2014-0010.12, VMSA-2014-0010.13, VMSA-2014-0010.2, VMSA-2014-0010.4, VMSA-2014-0010.7, VMSA-2014-0010.8, VMSA-2014-0010.9.

Description of the vulnerability

Several vulnerabilities were announced in bash.

An attacker can force a read at an invalid address in redir_stack, in order to trigger a denial of service. [severity:1/4; CVE-2014-7186]

An attacker can generate a buffer overflow of one byte in word_lineno, in order to trigger a denial of service, and possibly to execute code. [severity:1/4; CVE-2014-7187]
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vulnerability alert CVE-2014-7169

bash: code execution via Function Variable

Synthesis of the vulnerability

An attacker can define a special environment variable, which is transmitted (via CGI or OpenSSH for example) to bash, in order to execute code.
Impacted products: Arkoon FAST360, GAiA, CheckPoint IP Appliance, IPSO, SecurePlatform, CheckPoint Security Appliance, CheckPoint Smart-1, CheckPoint VSX-1, Cisco ASR, Cisco ACE, ASA, IOS XE Cisco, Cisco IPS, IronPort Encryption, Nexus by Cisco, NX-OS, Secure ACS, Cisco CUCM, Cisco Unified CCX, XenServer, Clearswift Email Gateway, Clearswift Web Gateway, Debian, Avamar, EMC CAVA, EMC CEE, EMC CEPA, Celerra FAST, Celerra NS, Celerra NX4, EMC CMDCE, Connectrix Switch, NetWorker, PowerPath, Unisphere EMC, VNX Operating Environment, VNX Series, Black Diamond, ExtremeXOS, Summit, BIG-IP Hardware, TMOS, Fedora, FortiAnalyzer, FortiAnalyzer Virtual Appliance, FortiManager, FortiManager Virtual Appliance, HP Operations, AIX, IVE OS, Junos Space, MAG Series by Juniper, NSM Central Manager, NSMXpress, Juniper SA, Juniper UAC, McAfee Email and Web Security, McAfee Email Gateway, McAfee MOVE AntiVirus, McAfee NSP, McAfee NGFW, McAfee Web Gateway, openSUSE, Solaris, pfSense, RealPresence Collaboration Server, RealPresence Distributed Media Application, Polycom VBP, RHEL, RSA Authentication Manager, ROX, RuggedSwitch, Slackware, Stonesoft NGFW/VPN, SUSE Linux Enterprise Desktop, SLES, Ubuntu, Unix (platform) ~ not comprehensive, ESX, vCenter Server, VMware vSphere.
Severity: 3/4.
Consequences: administrator access/rights, privileged access/rights, user access/rights.
Provenance: internet client.
Number of vulnerabilities in this bulletin: 2.
Creation date: 25/09/2014.
Identifiers: 193355, 193866, 194029, 194064, 194669, 480931, c04475942, c04479492, CERTFR-2014-AVI-403, CERTFR-2014-AVI-415, CERTFR-2014-AVI-480, cisco-sa-20140926-bash, CTX200217, CTX200223, CVE-2014-3659-REJECT, CVE-2014-7169, DSA-3035-1, ESA-2014-111, ESA-2014-123, ESA-2014-124, ESA-2014-125, ESA-2014-126, ESA-2014-127, ESA-2014-128, ESA-2014-133, ESA-2014-136, ESA-2014-150, ESA-2014-151, ESA-2014-152, ESA-2014-162, FEDORA-2014-11514, FEDORA-2014-11527, FEDORA-2014-12202, FG-IR-14-030, HPSBGN03138, HPSBMU03144, JSA10648, JSA10661, MDVSA-2014:190, MDVSA-2015:164, openSUSE-SU-2014:1229-1, openSUSE-SU-2014:1242-1, openSUSE-SU-2014:1248-1, openSUSE-SU-2014:1308-1, openSUSE-SU-2014:1310-1, pfSense-SA-14_18.packages, RHSA-2014:1306-01, RHSA-2014:1311-01, RHSA-2014:1312-01, RHSA-2014:1354-01, RHSA-2014:1865-01, SB10085, sk102673, SOL15629, SSA:2014-268-01, SSA:2014-268-02, SSA-860967, SUSE-SU-2014:1247-1, SUSE-SU-2014:1247-2, T1021272, USN-2363-1, USN-2363-2, VIGILANCE-VUL-15401, VMSA-2014-0010, VMSA-2014-0010.10, VMSA-2014-0010.11, VMSA-2014-0010.12, VMSA-2014-0010.13, VMSA-2014-0010.2, VMSA-2014-0010.4, VMSA-2014-0010.7, VMSA-2014-0010.8, VMSA-2014-0010.9, VN-2014-002.

Description of the vulnerability

The bulletin VIGILANCE-VUL-15399 describes a vulnerability of bash.

However, the offered patch (VIGILANCE-SOL-36695) is incomplete. An variant of the initial attack can thus still be used to execute code or to create a file.

In this case, the code is run when the variable is parsed (which is not necessarily an environment variable), and not when the shell starts. The impact may thus be lower, but this was not confirmed.

An attacker can therefore define a special environment variable, which is transmitted (via CGI or OpenSSH for example) to bash, in order to execute code.
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