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

computer vulnerability note CVE-2014-4157

Linux kernel: privilege escalation via PR_SET_SECCOMP on MIPS

Synthesis of the vulnerability

An attacker can call functions which should be forbidden by PR_SET_SECCOMP of the Linux kernel on MIPS, in order to escalate his privileges.
Impacted products: Linux.
Severity: 2/4.
Consequences: administrator access/rights, privileged access/rights.
Provenance: document.
Creation date: 18/06/2014.
Identifiers: 751417, CVE-2014-4157, VIGILANCE-VUL-14909.

Description of the vulnerability

The PR_SET_SECCOMP operation of prctl() indicates to limit the allowed system calls for the current thread:
 - SECCOMP_MODE_STRICT : only read(), write(), _exit() and sigreturn() are allowed.
 - SECCOMP_MODE_FILTER : a list of allowed calls is defined.

However, on a MIPS processor, PR_SET_SECCOMP is not checked. All system calls are thus allowed.

An attacker can therefore call functions which should be forbidden by PR_SET_SECCOMP of the Linux kernel on MIPS, in order to escalate his privileges.
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computer vulnerability bulletin CVE-2014-2779

Microsoft Malware Protection Engine: denial of service

Synthesis of the vulnerability

An attacker can send a malicious file to the Microsoft Malware Protection Engine, in order to trigger a denial of service.
Impacted products: Forefront Security for Exchange Server, Forefront Threat Management Gateway, Forefront Unified Access Gateway, SCCM, SCOM, Windows 2003, Windows 2008 R0, Windows 2008 R2, Windows 2012, Windows 7, Windows 8, Windows RT, Windows Vista, Windows XP.
Severity: 2/4.
Consequences: denial of service on service.
Provenance: document.
Creation date: 18/06/2014.
Identifiers: 2974294, CVE-2014-2779, VIGILANCE-VUL-14908.

Description of the vulnerability

The Microsoft Malware Protection Engine analyzes files searching for malware.

However, a malicious file locks this engine.

An attacker can therefore send a malicious file to the Microsoft Malware Protection Engine, in order to trigger a denial of service.
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computer vulnerability announce CVE-2014-4021

Xen: information disclosure via Heap Memory

Synthesis of the vulnerability

An attacker located in a guest system can read a memory fragment of Xen, in order to obtain sensitive information.
Impacted products: XenServer, Debian, Fedora, openSUSE, RHEL, Unix (platform) ~ not comprehensive.
Severity: 1/4.
Consequences: data reading.
Provenance: user shell.
Creation date: 17/06/2014.
Identifiers: CERTFR-2014-AVI-276, CTX140984, CVE-2014-4021, DSA-3006-1, FEDORA-2014-7722, FEDORA-2014-7734, openSUSE-SU-2014:1279-1, openSUSE-SU-2014:1281-1, RHSA-2014:0926-01, VIGILANCE-VUL-14907, XSA-100.

Description of the vulnerability

The Xen product uses memory pages, for the hypervisor and guest systems.

However, pages which are not longer used by the hypervisor are not reset, before being reused by guest systems.

An attacker located in a guest system can therefore read a memory fragment of Xen, in order to obtain sensitive information.
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computer vulnerability alert 14906

Xen: privilege escalation via xen-access.c

Synthesis of the vulnerability

An attacker can use a program based on xen-access.c of Xen, in order to escalate his privileges.
Impacted products: Unix (platform) ~ not comprehensive.
Severity: 2/4.
Consequences: administrator access/rights, privileged access/rights.
Provenance: user account.
Creation date: 17/06/2014.
Identifiers: CERTFR-2014-AVI-276, VIGILANCE-VUL-14906, XSA-99.

Description of the vulnerability

The Xen product provides the xen-access.c example.

However, this example does not forbid the access to the Shared Ring Page. Applications based on this example thus allow an attacker who is located in a guest system to execute code on the host.

An attacker can therefore use a program based on xen-access.c of Xen, in order to escalate his privileges.
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computer vulnerability CVE-2014-2151

Cisco ASA: information disclosure via WebVPN

Synthesis of the vulnerability

An attacker can use a JavaScript file on WebVPN of Cisco ASA, in order to obtain sensitive information.
Impacted products: ASA.
Severity: 2/4.
Consequences: data reading.
Provenance: document.
Creation date: 17/06/2014.
Identifiers: CSCui04520, CVE-2014-2151, VIGILANCE-VUL-14905.

Description of the vulnerability

The Cisco ASA product offers a WebVPN web service.

However, an attacker can transmit a malicious JavaScript file to an authenticated user, in order to obtain information.

An attacker can therefore use a JavaScript file on WebVPN of Cisco ASA, in order to obtain sensitive information.
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vulnerability note CVE-2013-5017 CVE-2014-1650 CVE-2014-1651

Symantec Web Gateway: multiple vulnerabilities

Synthesis of the vulnerability

An attacker can use several vulnerabilities of Symantec Web Gateway.
Impacted products: Symantec Web Gateway.
Severity: 3/4.
Consequences: privileged access/rights, user access/rights, client access/rights.
Provenance: document.
Number of vulnerabilities in this bulletin: 4.
Creation date: 17/06/2014.
Identifiers: BID-67752, BID-67753, BID-67754, BID-67755, CVE-2013-5017, CVE-2014-1650, CVE-2014-1651, CVE-2014-1652, SYM14-010, VIGILANCE-VUL-14904, VU#719172, ZDI-14-211.

Description of the vulnerability

Several vulnerabilities were announced in Symantec Web Gateway.

An attacker can inject commands in SNMPConfig.php, in order to execute code. [severity:3/4; BID-67752, CVE-2013-5017, ZDI-14-211]

An attacker can use a SQL injection in user.php, in order to read or alter data. [severity:2/4; BID-67753, CVE-2014-1650]

An attacker can use a SQL injection in clientreport.php, in order to read or alter data. [severity:2/4; BID-67754, CVE-2014-1651]

An attacker can trigger a Cross Site Scripting in Report Parameters, in order to execute JavaScript code in the context of the web site. [severity:2/4; BID-67755, CVE-2014-1652]
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vulnerability announce CVE-2014-3290

Cisco IOS XE: read-write access via mDNS

Synthesis of the vulnerability

An attacker can use mDNS of Cisco IOS XE, in order to read or alter data.
Impacted products: Cisco Catalyst, IOS XE Cisco.
Severity: 2/4.
Consequences: data reading, data creation/edition, data deletion.
Provenance: LAN.
Creation date: 13/06/2014.
Identifiers: CSCun64867, CVE-2014-3290, VIGILANCE-VUL-14902.

Description of the vulnerability

The Cisco IOS XE product implements multicast Domain Name System.

However, an attacker can capture mDNS packets, to obtain sensitive information. He can also send malicious mDNS replies, in order to alter the configuration.

An attacker can therefore use mDNS of Cisco IOS XE, in order to read or alter data.
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vulnerability alert CVE-2014-4045 CVE-2014-4046 CVE-2014-4047

Asterisk: multiple vulnerabilities

Synthesis of the vulnerability

An attacker can use several vulnerabilities of Asterisk.
Impacted products: Asterisk Open Source, Debian, Fedora.
Severity: 2/4.
Consequences: user access/rights, denial of service on service.
Provenance: intranet client.
Number of vulnerabilities in this bulletin: 4.
Creation date: 13/06/2014.
Identifiers: AST-2014-005, AST-2014-006, AST-2014-007, AST-2014-008, CERTFR-2014-AVI-289, CVE-2014-4045, CVE-2014-4046, CVE-2014-4047, CVE-2014-4048, DLA-455-1, FEDORA-2014-7551, FEDORA-2014-7570, MDVSA-2014:138, VIGILANCE-VUL-14901.

Description of the vulnerability

Several vulnerabilities were announced in Asterisk.

An attacker can unsubscribe via the PJSIP Channel, in order to trigger a denial of service. [severity:2/4; AST-2014-005, CVE-2014-4045]

An attacker can execute shell commands via the Asterisk Manager, in order to escalate his privileges. [severity:2/4; AST-2014-006, CVE-2014-4046]

An attacker can use several HTTP sessions, in order to trigger a denial of service. [severity:2/4; AST-2014-007, CVE-2014-4047]

An authenticated attacker can wait for a timeout in PJSIP, in order to trigger a denial of service. [severity:2/4; AST-2014-008, CVE-2014-4048]
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vulnerability CVE-2014-4043

glibc: use after free via posix_spawn_file_actions_addopen

Synthesis of the vulnerability

An attacker can use a freed memory area in the implementation of the posix_spawn_file_actions_addopen() function in the glibc, in order to trigger a denial of service, and possibly to execute code.
Impacted products: Debian, openSUSE, Slackware, SUSE Linux Enterprise Desktop, SLES, Ubuntu, Unix (platform) ~ not comprehensive.
Severity: 2/4.
Consequences: administrator access/rights, privileged access/rights, user access/rights, denial of service on service, denial of service on client.
Provenance: document.
Creation date: 13/06/2014.
Identifiers: 17048, CVE-2014-4043, DSA-3169-1, MDVSA-2014:152, MDVSA-2015:168, openSUSE-SU-2015:1387-1, SSA:2014-296-01, SUSE-SU-2014:0920-1, SUSE-SU-2014:1122-1, SUSE-SU-2014:1128-1, USN-2306-1, USN-2306-2, USN-2306-3, VIGILANCE-VUL-14900.

Description of the vulnerability

The posix_spawn_file_actions_addopen() function of the glibc adds an event manager on a file descriptor:
  int posix_spawn_file_actions_addopen(file_actions, fd, path, ...);

However, it does not copy the path for its internal usage. If the calling process frees the memory area containing this path, this function thus continues to use it.

An attacker can therefore use a freed memory area in the implementation of the posix_spawn_file_actions_addopen() function in the glibc, in order to trigger a denial of service, and possibly to execute code.
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computer vulnerability note CVE-2014-4020

Wireshark: denial of service via Frame Metadissector

Synthesis of the vulnerability

An attacker can send a malicious packet to Wireshark, in order to trigger a denial of service.
Impacted products: Fedora, openSUSE, Solaris, Wireshark.
Severity: 1/4.
Consequences: denial of service on service.
Provenance: internet client.
Creation date: 13/06/2014.
Identifiers: 9999, CERTFR-2014-AVI-285, CVE-2014-4020, FEDORA-2014-7359, openSUSE-SU-2014:0836-1, VIGILANCE-VUL-14899, wnpa-sec-2014-07.

Description of the vulnerability

The Wireshark program captures and displays network packets. Protocols are decoded by dissectors.

However, the get_hfi_and_length() function of the epan/proto.c file does not correctly detect the remaining size of a TVB.

An attacker can therefore send a malicious packet to Wireshark, in order to trigger a denial of service.
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