Apple Mac OS X Certificate Assistant file overwrite

macosx-certificate-asst-file-overwrite (48715) The risk level is classified as MediumMedium Risk


Apple Mac OS X could allow a local attacker to overwrite arbitrary files, caused by the improper handling of insecure temporary files by the Certificate Assistant. A local attacker could exploit this vulnerability to overwrite arbitrary files on the vulnerable system with the privileges of the victim.


Base Score: 2.1
  Access Vector: Local
  Access Complexity: Low
  Authentication: None
  Confidentiality Impact: None
  Integrity Impact: Partial
  Availability Impact: None
Temporal Score: 1.6
  Exploitability: Unproven
  Remediation Level: Official-Fix
  Report Confidence: Confirmed


File Manipulation


Apply Apple Security Update 2009-001, available from the Apple Web site. See References.


  • Apple Web site: About the security content of Security Update 2009-001 .
  • BID-33759: RETIRED: Apple Mac OS X 2009-001 Multiple Security Vulnerabilities
  • BID-33810: Apple Mac OS X Certificate Assistant Insecure Temporary File Creation Vulnerability
  • CVE-2009-0011: Certificate Assistant in Apple Mac OS X 10.5.6 allows local users to overwrite arbitrary files via unknown vectors related to an insecure file operation on a temporary file.
  • OSVDB ID: 51979: Apple Mac OS X Certificate Assistant Temporary File Operation Arbitrary File Overwrite
  • SA33937: Apple Mac OS X Security Update Fixes Multiple Vulnerabilities
  • SECTRACK ID: 1021720: Mac OS X Certificate Assistant Temporary File Bug Lets Local Users Gain Elevated Privileges

Platforms Affected:

  • Apple Mac OS X 10.5.6
  • Apple Mac OS X Server 10.5.6


Feb 12, 2009

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