Apple Mac OS X NSFileManager privilege escalation
| macos-nsfilemanager-priv-escalation (41299) |  High Risk |
Description:
Apple Mac OS X could allow a local attacker to gain elevated privileges on the system, caused by a race condition in the NSFileManager in the Foundation component. NSFileManager creates world-writable directories and restricts permissions later when a recursive file copying operation is performed. A local attacker could exploit this vulnerability and modify the directory to interrupt another user's operations and gain elevated privileges on the system.
Platforms Affected:
- Apple, Mac OS X 10.4.11
- Apple, Mac OS X Server 10.4.11
Remedy:
Apply Security Update 2008-002, available from the Apple Web site. See References.
Consequences:
Gain Privileges
References:
- Apple Web site, About Security Update 2008-002 at http://docs.info.apple.com/article.html?artnum=307562.
- BID-28304: RETIRED: Apple Mac OS X 2008-002 Multiple Security Vulnerabilities
- BID-28343: Apple Mac OS X Foundation NSFileManager Insecure Directory Local Privilege Escalation Vulnerability
- CVE-2008-0055: Foundation in Apple Mac OS X 10.4.11 creates world-writable directories while NSFileManager copies files recursively and only modifies the permissions afterward, which allows local users to modify copied files to cause a denial of service and possibly gain privileges.
- SA29420: Mac OS X Security Update Fixes Multiple Vulnerabilities
- SECTRACK ID: 1019649: Mac OS X Foundation Bugs Lets Local Users Gain Elevated Privileges
- VUPEN/ADV-2008-0924: Apple Mac OS X Command Execution and Security Bypass Issues
Reported:
Mar 18, 2008
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