Apple Mac OS X Unauthorized Password Change Local Security Bypass Vulnerability

Bugtraq ID:	50146
Class:	Access Validation Error
CVE:	CVE-2011-3436
Remote:	No
Local:	Yes
Published:	Oct 12 2011 12:00AM
Updated:	Oct 12 2011 12:00AM
Credit:	Patrick Dunstan at defenceindepth.net
Vulnerable:	Apple Mac OS X Server 10.7.1 Apple Mac OS X Server 10.7 Apple Mac OS X 10.7.1 Apple Mac OS X 10.7
Not Vulnerable:	Apple Mac OS X Server 10.7.2 Apple Mac OS X 10.7.2

Apple Mac OS X Unauthorized Password Change Local Security Bypass Vulnerability

Apple Mac OS X is prone to a local security-bypass vulnerability.

An attacker can exploit this issue to change a user's password, aiding further attacks.

NOTE: This issue was previously discussed in BID 50085 (Apple Mac OS X Prior to 10.7.2 Multiple Security Vulnerabilities) but has been given its own record to better document it.

Apple Mac OS X Unauthorized Password Change Local Security Bypass Vulnerability

An attacker requires local interactive access to exploit the issue.

Apple Mac OS X Unauthorized Password Change Local Security Bypass Vulnerability

Solution:
The vendor released an update. Please see the references for details.


Apple Mac OS X 10.7.1

• Apple MacOSXUpd10.7.2.dmg
  http://www.apple.com/support/downloads/

Apple Mac OS X Server 10.7

• Apple MacOSXServerUpdCombo10.7.2.dmg
  http://www.apple.com/support/downloads/

Apple Mac OS X Server 10.7.1

• Apple MacOSXServerUpd10.7.2.dmg
  http://www.apple.com/support/downloads/

Apple Mac OS X 10.7

• Apple MacOSXUpdCombo10.7.2.dmg
  http://www.apple.com/support/downloads/

Apple Mac OS X Unauthorized Password Change Local Security Bypass Vulnerability

References:

• Cisco TelePresence Video Communication Server (VCS) Homepage (Cisco)
  
• Mac OS X Homepage (Apple)