Apple Mac OS X ppp daemon privilege escalation

macos-pppd-privilege-escalation (34503) The risk level is classified as HighHigh Risk

Description:

Apple Mac OS X could allow a local attacker to gain elevated privileges, caused by an implememtation error in the ppp daemon. An attacker could exploit this vulnerability to load plugins using the command line and execute arbitrary code on the system with root privileges.

*CVSS:

Base Score: 7
  Access Vector: Local
  Access Complexity: Low
  Authentication: Not Required
  Confidentiality Impact: Complete
  Integrity Impact: Complete
  Availability Impact: Complete
 
Temporal Score: 5.2
  Exploitability: Unproven
  Remediation Level: Official-Fix
  Report Confidence: Confirmed

Consequences:

Gain Privileges

Remedy:

Apply Apple Security Update 2007-005, available from the Apple Web site. See References.

References:

  • Apple Security Update 2007-005: About Security Update 2007-005.
  • Apple Web site: Apple security updates.
  • iDefense Labs PUBLIC ADVISORY: 05.24.07: Apple Computer Mac OS X pppd Plugin Loading Privilege Escalation Vulnerability.
  • BID-24144: Apple Mac OS X 2007-005 Multiple Security Vulnerabilities
  • CVE-2007-0752: The PPP daemon (pppd) in Apple Mac OS X 10.4.8 checks ownership of the stdin file descriptor to determine if the invoker has sufficient privileges, which allows local users to load arbitrary plugins and gain root privileges by bypassing this check.
  • OSVDB ID: 35144: Mac OS X PPP Daemon (pppd) Local Privilege Escalation
  • SECTRACK ID: 1018124: Mac OS X pppd Plugin Loading Feature Lets Local Users Gain Root Privileges

Platforms Affected:

  • Apple Mac OS X 10.4
  • Apple Mac OS X 10.4.1
  • Apple Mac OS X 10.4.10
  • Apple Mac OS X 10.4.11
  • Apple Mac OS X 10.4.2
  • Apple Mac OS X 10.4.3
  • Apple Mac OS X 10.4.4
  • Apple Mac OS X 10.4.5
  • Apple Mac OS X 10.4.6
  • Apple Mac OS X 10.4.7
  • Apple Mac OS X 10.4.8
  • Apple Mac OS X 10.4.9
  • Apple Mac OS X Server 10.4
  • Apple Mac OS X Server 10.4.1
  • Apple Mac OS X Server 10.4.10
  • Apple Mac OS X Server 10.4.11
  • Apple Mac OS X Server 10.4.2
  • Apple Mac OS X Server 10.4.3
  • Apple Mac OS X Server 10.4.4
  • Apple Mac OS X Server 10.4.5
  • Apple Mac OS X Server 10.4.6
  • Apple Mac OS X Server 10.4.7
  • Apple Mac OS X Server 10.4.8
  • Apple Mac OS X Server 10.4.9

Reported:

May 24, 2007

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