Apple Mac OS X 'i386_set_ldt()' Privilege Escalation Vulnerability

Bugtraq ID:	46997
Class:	Unknown
CVE:	CVE-2011-0182
Remote:	No
Local:	Yes
Published:	Mar 21 2011 12:00AM
Updated:	Mar 19 2015 08:40AM
Credit:	Jeff Mears
Vulnerable:	Apple Mac OS X Server 10.6.6 Apple Mac OS X Server 10.6.5 Apple Mac OS X Server 10.6.4 Apple Mac OS X Server 10.6.3 Apple Mac OS X Server 10.6.2 Apple Mac OS X Server 10.6.1 Apple Mac OS X Server 10.6 Apple Mac OS X 10.6.5 Apple Mac OS X 10.6.4 Apple Mac OS X 10.6.3 Apple Mac OS X 10.6.2 Apple Mac OS X 10.6.1 Apple Mac OS X 10.6
Not Vulnerable:	Apple Mac Os X Server 10.6.7

Apple Mac OS X 'i386_set_ldt()' Privilege Escalation Vulnerability

Apple Mac OS X is prone to a privilege-escalation vulnerability.

Successfully exploiting this issue can allow attackers to execute arbitrary code with elevated privileges, leading to a complete compromise of the computer.

Mac OS X versions 10.6 through 10.6.6 and Mac OS X Server versions 10.6 through 10.6.6 are vulnerable.

NOTE: This issue was previously discussed in BID 46950 (Apple Mac OS X Prior to 10.6.7 Multiple Security Vulnerabilities) but has been given its own record to better document it.

Apple Mac OS X 'i386_set_ldt()' Privilege Escalation Vulnerability

The following exploit is available to members of the Immunity Partner's Program:

https://www.immunityinc.com/downloads/immpartners/CVE_2011_0182.tar.gz

The following proof of concept is also available:

• /data/vulnerabilities/exploits/46997.c

Apple Mac OS X 'i386_set_ldt()' Privilege Escalation Vulnerability

Solution:
Vendor updates are available. Please see the references for more information.


Apple Mac OS X 10.6

• Apple MacOSXUpdCombo10.6.7.dmg
  For Mac OS X v10.6 - v10.6.5
  http://www.apple.com/support/downloads/

Apple Mac OS X Server 10.6

• Apple MacOSXServerUpdCombo10.6.7.dmg
  For Mac OS X Server v10.6 - v10.6.5
  http://www.apple.com/support/downloads/

Apple Mac OS X Server 10.6.1

• Apple MacOSXServerUpdCombo10.6.7.dmg
  For Mac OS X Server v10.6 - v10.6.5
  http://www.apple.com/support/downloads/

Apple Mac OS X 10.6.1

• Apple MacOSXUpdCombo10.6.7.dmg
  For Mac OS X v10.6 - v10.6.5
  http://www.apple.com/support/downloads/

Apple Mac OS X 10.6.2

• Apple MacOSXUpdCombo10.6.7.dmg
  For Mac OS X v10.6 - v10.6.5
  http://www.apple.com/support/downloads/

Apple Mac OS X Server 10.6.2

• Apple MacOSXServerUpdCombo10.6.7.dmg
  For Mac OS X Server v10.6 - v10.6.5
  http://www.apple.com/support/downloads/

Apple Mac OS X Server 10.6.3

• Apple MacOSXServerUpdCombo10.6.7.dmg
  For Mac OS X Server v10.6 - v10.6.5
  http://www.apple.com/support/downloads/

Apple Mac OS X 10.6.3

• Apple MacOSXUpdCombo10.6.7.dmg
  For Mac OS X v10.6 - v10.6.5
  http://www.apple.com/support/downloads/

Apple Mac OS X Server 10.6.4

• Apple MacOSXServerUpdCombo10.6.7.dmg
  For Mac OS X Server v10.6 - v10.6.5
  http://www.apple.com/support/downloads/

Apple Mac OS X 10.6.4

• Apple MacOSXUpdCombo10.6.7.dmg
  For Mac OS X v10.6 - v10.6.5
  http://www.apple.com/support/downloads/

Apple Mac OS X Server 10.6.5

• Apple MacOSXServerUpdCombo10.6.7.dmg
  For Mac OS X Server v10.6 - v10.6.5
  http://www.apple.com/support/downloads/

Apple Mac OS X 10.6.5

• Apple MacOSXUpdCombo10.6.7.dmg
  For Mac OS X v10.6 - v10.6.5
  http://www.apple.com/support/downloads/

Apple Mac OS X 10.6.5

• Apple MacOSXUpdCombo10.6.7.dmg
  For Mac OS X v10.6 - v10.6.5
  http://www.apple.com/support/downloads/

Apple Mac OS X 10.6.6

• Apple MacOSXUpd10.6.7.dmg
  For Mac OS X v10.6.6
  http://www.apple.com/support/downloads/

Apple Mac OS X Server 10.6.6

• Apple MacOSXServerUpd10.6.7.dmg
  For Mac OS X Server v10.6.6
  http://www.apple.com/support/downloads/

Apple Mac OS X 'i386_set_ldt()' Privilege Escalation Vulnerability

References:

• Mac OS X Homepage (Apple)