Apple Mac OS X AFP server reconnect key unauthorized file access

macosx-afp-file-access (28136) The risk level is classified as LowLow Risk

Description:

Apple Mac OS X Server could allow a local attacker to obtain sensitive information, caused by insecure permissions on the Apple Filing Protocol (AFP) reconnect keys. AFP reconnect keys, which are used for reconnecting file sharing sessions after a network outage, are created with world-readable permissions. This could allow an attacker to obtain an AFP reconnect key for another user and use it to gain unauthorized access to the user's shared files and folders.

*CVSS:

Base Score: 1.5
  Access Vector: Local
  Access Complexity: Low
  Authentication: Required
  Confidentiality Impact: Partial
  Integrity Impact: None
  Availability Impact: None
 
Temporal Score: 1.3
  Exploitability: High
  Remediation Level: Official-Fix
  Report Confidence: Confirmed

Consequences:

Obtain Information

Remedy:

Apply Apple Security Update 2006-004, available from the Apple Web site. See References.

References:

  • Apple Security Update 2006-004: About Security Update 2006-004.
  • US-CERT Technical Cyber Security Alert TA06-214A: Apple Mac Products Affected by Multiple Vulnerabilities.
  • BID-19289: Apple Mac OS X Multiple Security Vulnerabilities
  • CVE-2006-3495: AFP Server in Apple Mac OS X 10.3.9 and 10.4.7 stores reconnect keys in a world-readable file, which allows local users to obtain the keys and access files and folders of other users.
  • OSVDB ID: 27732: Mac OS X Server AFP Server Reconnect Key Disclosure
  • SA21253: Mac OS X Security Update Fixes Multiple Vulnerabilities
  • SECTRACK ID: 1016620: Apple AFP Server Discloses Files to Local Users and Lets Users Deny Service or Execute Arbitrary Code
  • US-CERT VU#168020: Apple Mac OS X AFP server stores reconnect keys in a world-readable file
  • VUPEN/ADV-2006-3101: Apple Mac OS X Multiple Remote Code Execution and Local Security Bypass Vulnerabilities

Platforms Affected:

  • Apple Mac OS X Server 10.3.9
  • Apple Mac OS X Server 10.4.7

Reported:

Aug 01, 2006

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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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