Gentoo Courier-IMAP command execution

gentoo-courier-imap-command-execution (33805) The risk level is classified as HighHigh Risk

Description:

Gentoo Courier-IMAP could allow a remote attacker to execute arbitrary commands on the system caused by improper handling of the XMAILDIR variable in courier-imapd.indirect and courier-pop3d.indirect. A remote attacker could login using specially-crafted login data and execute arbitrary commands on the system with root privileges.

*CVSS:

Base Score: 10
  Access Vector: Remote
  Access Complexity: Low
  Authentication: Not Required
  Confidentiality Impact: Complete
  Integrity Impact: Complete
  Availability Impact: Complete
 
Temporal Score: 7.4
  Exploitability: Unproven
  Remediation Level: Official-Fix
  Report Confidence: Confirmed

Consequences:

Gain Access

Remedy:

Refer to GLSA 200704-18 for patch, upgrade, or suggested workaround information. See References.

References:

  • BID-23589: Courier-IMAP XMAILDIR Shell Command Injection Vulnerability
  • CVE-2007-2173: Eval injection vulnerability in (1) courier-imapd.indirect and (2) courier-pop3d.indirect in Courier-IMAP before 4.0.6-r2, and 4.1.x before 4.1.2-r1, on Gentoo Linux allows remote attackers to execute arbitrary commands via the XMAILDIR variable, related to the LOGINRUN variable.
  • GLSA-200704-18: Courier-IMAP: Remote execution of arbitrary code
  • OSVDB ID: 35274: Gentoo courier-imap XMAILDIR Variable Remote Command Injection
  • SA24963: Gentoo courier-imap "XMAILDIR" Variable Command Injection

Platforms Affected:

  • Courier-MTA Courier-IMAP 4.0.0
  • Courier-MTA Courier-IMAP 4.0.1
  • Courier-MTA Courier-IMAP 4.0.2
  • Courier-MTA Courier-IMAP 4.0.3
  • Courier-MTA Courier-IMAP 4.0.4
  • Courier-MTA Courier-IMAP 4.0.5
  • Courier-MTA Courier-IMAP 4.1.0
  • Courier-MTA Courier-IMAP 4.1.1
  • Gentoo Linux

Reported:

Apr 22, 2007

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