McAfee Virex Library file privilege escalation
| mcafee-virex-library-privilege-escalation (32729) |  High Risk |
Description:
McAfee Virex could allow a local attacker to gain elevated privileges on the system. The Library/Application/Sypport/Virex/VShieldExecute.txt file was created with insecure permissions. A local authenticated attacker could exploit this vulnerability by creating a symbolic link from the /Library/Application Support/Virex/VShieldExclude.txt file to the /var/cron/tabs/root file to execute arbitrary commands on the system with ROOT privileges.
Platforms Affected:
- McAfee, Virex 7.7 Macintosh
Remedy:
Refer to McAfee ServicePortal Document ID: 518722 for patch, upgrade, or suggested workaround information. See References.
Consequences:
Gain Privileges
References:
- BugTraq Mailing List, Tue Feb 27 2007 - 16:54:40 CST , [NETRAGARD-20070220 SECURITY ADVISORY] [McAfee VirusScan for Mac (Virex) Local root exploit and Scan Bypass] at http://archives.neohapsis.com/archives/bugtraq/2007-02/0513.html.
- McAfee Security Bulletin, February 13, 2007, Virex 7.7 patch 1 or higher fixes vulnerabilities at https://knowledge.mcafee.com/article/attachments/518722_fMcAfee Security Bulletin - Virex 7.7 patch 1 or higher fixes vulnerabilities.pdf.
- McAfee ServicePortal Document ID: 518722 , McAfee Security Bulletin: Virex 7.7 patch 1 or higher fixes vulnerabilities [518722] at https://knowledge.mcafee.com/SupportSite/dynamickc.do?externalId=518722&sliceId=SAL_Public&command=show&forward=nonthreadedKC&kcId=518722.
- BID-22744: McAfee VirusScan Virex Insecure File Creation and Scan Bypass Vulnerabilities
- CVE-2007-1227: VShieldCheck in McAfee VirusScan for Mac (Virex) before 7.7 patch 1 allow local users to change permissions of arbitrary files via a symlink attack on /Library/Application Support/Virex/VShieldExclude.txt, as demonstrated by symlinking to the root crontab file to execute arbitrary commands.
- FrSIRT/ADV-2007-0777: McAfee Virex for Mac Insecure File Permissions Local Privilege Escalation Vulnerability
- SA24337: McAfee Virex VShieldExclude.txt Privilege Escalation
- SECTRACK ID: 1017707: McAfee Virex `VShieldExclude.txt` File Symlink Flaw Lets Local Users Obtain Root Privileges
Reported:
Feb 27, 2007
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