X.Org X11 xrdb utility command execution

xorg11-xrdb-command-execution (66585) The risk level is classified as HighHigh Risk

Description:

X.Org X11 could allow a remote attacker to execute arbitrary commands on the system, caused by the improper validation of input by the Server Resource Database xrdb utility when the hostname is retrieved by the display manager. An attacker could exploit this vulnerability to execute arbitrary shell commands on the system with root privileges.

*CVSS:

Base Score: 7.5
  Access Vector: Network
  Access Complexity: Low
  Authentication: None
  Confidentiality Impact: Partial
  Integrity Impact: Partial
  Availability Impact: Partial
 
Temporal Score: 5.5
  Exploitability: Unproven
  Remediation Level: Official-Fix
  Report Confidence: Confirmed

Consequences:

Gain Access

Remedy:

Refer to X.Org security advisory, April 5th, 2011 for patch, upgrade or suggested workaround information. See References.

For other distributions:
Apply the appropriate update for your system. See References.

References:

  • Attachmate Web site: Security Updates and Reflection.
  • Oracle Security Blog, Jul 02, 2013: CVE-2011-0465 Improper Input Validation vulnerability in X.Org.
  • X.Org security advisory, April 5th, 2011: X.Org security advisory: root hole via rogue hostname.
  • BID-47189: X.Org xrdb Remote Arbitrary Shell Command Injection Vulnerability
  • CVE-2011-0465: xrdb.c in xrdb before 1.0.9 in X.Org X11R7.6 and earlier allows remote attackers to execute arbitrary commands via shell metacharacters in a hostname obtained from a (1) DHCP or (2) XDMCP message.
  • DSA-2213: x11-xserver-utils -- missing input sanitization
  • OSVDB ID: 75045: X.Org X Window System (X11) xrdb xrdb.c Hostname Shell Metacharacter Arbitrary Local Command Injection
  • RHSA-2011-0432: Moderate: xorg-x11 security update
  • RHSA-2011-0433: Moderate: xorg-x11-server-utils security update
  • SA44040: X.Org xrdb Hostname Command Injection Security Issue
  • SA48865: Attachmate Reflection X X.Org xrdb Hostname Command Injection Security Issue
  • SA52564: Oracle Solaris X.Org xrdb Hostname Command Injection Security Issue
  • SA53782: Oracle Solaris X.Org xrdb Hostname Command Injection Security Issue
  • SUSE-SA:2011:016: X.org / X11 security update
  • VUPEN/ADV-2011-0880: X.Org X11 xrdb X Server Resource Database Utility Command Injection

Platforms Affected:

  • Attachmate Reflection 14.x
  • Novell Linux POS 9
  • Novell Open Enterprise Server
  • Novell SLE SDK 10
  • Novell SUSE Linux Enterprise Server 10
  • RedHat Enterprise Linux 4 WS
  • RedHat Enterprise Linux 4 ES
  • RedHat Enterprise Linux 4 Desktop
  • RedHat Enterprise Linux 4 AS
  • RedHat Enterprise Linux 4.8.z AS
  • RedHat Enterprise Linux 4.8.z ES
  • RedHat Enterprise Linux 5
  • RedHat Enterprise Linux 5 Client
  • RedHat Enterprise Linux 6 Workstation
  • RedHat Enterprise Linux 6 Server
  • RedHat Enterprise Linux Desktop 6
  • RedHat Enterprise Linux EUS 5.6.z
  • RedHat Enterprise Linux HPC Node 6
  • RedHat Enterprise Linux Long Life 5.6
  • RedHat Enterprise Linux Server EUS 6.0.z
  • Sun Solaris 10
  • SuSE SuSE SLES 9
  • X.Org xrdb 1.0.8

Reported:

Apr 05, 2011

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