Apple Mac OS X Disk Utility privilege escalation

macosx-diskutility-privilege-escalation (44132)

High Risk

Description:

Apple Mac OS X could allow a local attacker to execute arbitrary commands on the system, caused by an error in the Disk Utility component. The Repair Permissions tool sets setuid permissions on /usr/bin/emacs. By running the Repair Permissions tool, an attacker could exploit this vulnerability using emacs to execute arbitrary commands with system privileges.

*CVSS:

Base Score:	7.2
Access Vector:	Local
Access Complexity:	Low
Authentication:	None
Confidentiality Impact:	Complete
Integrity Impact:	Complete
Availability Impact:	Complete
Temporal Score:	6.3
Exploitability:	High
Remediation Level:	Official-Fix
Report Confidence:	Confirmed

Consequences:

Gain Privileges

Remedy:

Apply Security Update 2008-005, available from the Apple Web site. See References.

References:

• Apple Web site: About Security Update 2008-005.
• BID-30483: RETIRED: Apple Mac OS X 2008-005 Multiple Security Vulnerabilities
• BID-30492: Apple Mac OS X Disk Utility Privilege Escalation Vulnerability
• CVE-2008-2324: The Repair Permissions tool in Disk Utility in Apple Mac OS X 10.4.11 adds the setuid bit to the emacs executable file, which allows local users to gain privileges by executing commands within emacs.
• SA31326: Apple Mac OS X Security Update Fixes Multiple Vulnerabilities
• SECTRACK ID: 1020605: Mac OS X Disk Utility emacs Configuration Bug Lets Local Users Gain Elevated Privileges
• VUPEN/ADV-2008-2268: Apple Mac OS X Code Execution and Security Bypass Vulnerabilities

Platforms Affected:

• Apple Mac OS X 10.4.11
• Apple Mac OS X Server 10.4.11

Reported:

Aug 01, 2008

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