Apple iChat aim:// format string

ichat-aim-format-string (31679) The risk level is classified as HighHigh Risk

Description:

Apple iChat could allow a remote attacker to execute arbitrary commands on the system, caused by a format string vulnerability in the handling of the aim:// URL handler. By persuading a victim to follow a specially-crafted aim:// URL containing format string specifiers, a remote attacker could execute arbitrary commands on the system with the privileges of the victim or cause the application to crash.

*CVSS:

Base Score: 8
  Access Vector: Remote
  Access Complexity: High
  Authentication: Not Required
  Confidentiality Impact: Complete
  Integrity Impact: Complete
  Availability Impact: Complete
 
Temporal Score: 6.3
  Exploitability: Proof-Of-Concept
  Remediation Level: Official-Fix
  Report Confidence: Confirmed

Consequences:

Gain Access

Remedy:

Refer to Apple Security Update 2007-002 for update information. See Referneces.

References:

  • Apple Security Update 2007-002: About Security Update 2007-002.
  • Apple Web site: Apple iChat.
  • MOAB-20-01-2007: Apple iChat aim:// URL Handler Format String Vulnerability.
  • BID-22146: Apple iChat AIM URL Handler Remote Format String Vulnerability
  • CVE-2007-0021: Format string vulnerability in Apple iChat 3.1.6 allows remote attackers to cause a denial of service (null pointer dereference and application crash) and possibly execute arbitrary code via format string specifiers in an aim:// URI.
  • OSVDB ID: 32715: Apple iChat aim:// URI Format String
  • SA24198: Mac OS X Security Update Fixes Multiple Vulnerabilities
  • SECTRACK ID: 1017661: Apple iChat Format String Bug Lets Remote Users Execute Arbitrary Code and Null Pointer Dereference Lets Remote Users Deny Service
  • US-CERT VU#794752: Apple iChat AIM URI handler format string vulnerability

Platforms Affected:

  • Apple iChat 3.1.6

Reported:

Jan 20, 2007

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The information within this database may change without notice. Use of this information constitutes acceptance for use in an AS IS condition. There are NO warranties, implied or otherwise, with regard to this information or its use. Any use of this information is at the user's risk. In no event shall IBM be held liable for any damages whatsoever arising out of or in connection with the use or spread of this information.

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