Apple Mac OS X CFNetwork information disclosure

macosx-cfnetwork-info-disclosure (42708) The risk level is classified as LowLow Risk

Description:

Apple Mac OS X could allow a remote attacker to obtain sensitive information, caused by an error in CFNetwork during Safari SSL client certificate handling. By persuading a victim to visit a specially-crafted Web site that issues a client certificate request, an attacker could obtain the first client certificate found in the keychain.

*CVSS:

Base Score: 4.3
  Access Vector: Network
  Access Complexity: Medium
  Authentication: None
  Confidentiality Impact: Partial
  Integrity Impact: None
  Availability Impact: None
 
Temporal Score: 3.2
  Exploitability: Unproven
  Remediation Level: Official-Fix
  Report Confidence: Confirmed

Consequences:

Obtain Information

Remedy:

Apply Security Update 2008-003, available from the Apple Web site. See References.

References:

  • Apple Web site: About the security content of Security Update 2008-003 / Mac OS X 10.5.3.
  • BID-29412: RETIRED: Apple Mac OS X 2008-003 Multiple Security Vulnerabilities
  • BID-29493: Apple Mac OS X CFNetwork SSL Client Certificate Handling Information Disclosure Vulnerability
  • CVE-2008-1580: CFNetwork in Safari in Apple Mac OS X before 10.5.3 automatically sends an SSL client certificate in response to a web server's certificate request, which allows remote web sites to obtain sensitive information (Subject data) from personally identifiable certificates, and use arbitrary certificates to track user activities across domains, a related issue to CVE-2007-4879.
  • SA30430: Apple Mac OS X Security Update Fixes Multiple Vulnerabilities
  • SECTRACK ID: 1020134: Mac OS X CFNetwork Certificate Processing Bug Discloses Client Certificates to Remote Users

Platforms Affected:

  • Apple Mac OS X 10.4.11
  • Apple Mac OS X 10.5
  • Apple Mac OS X 10.5.1
  • Apple Mac OS X 10.5.2
  • Apple Mac OS X Server 10.4.11
  • Apple Mac OS X Server 10.5
  • Apple Mac OS X Server 10.5.1
  • Apple Mac OS X Server 10.5.2

Reported:

May 28, 2008

The information within this database may change without notice. Use of this information constitutes acceptance for use in an AS IS condition. There are NO warranties, implied or otherwise, with regard to this information or its use. Any use of this information is at the user's risk. In no event shall the author/distributor (IBM Internet Security Systems X-Force) be held liable for any damages whatsoever arising out of or in connection with the use or spread of this information.

For corrections or additions please email ignore thisxforceignore this@ignore thisus.ignore thisibm.comignore this

Return to the main page

* According to the Forum of Incident Response and Security Teams (FIRST), the Common Vulnerability Scoring System (CVSS) is an "industry open standard designed to convey vulnerability severity and help to determine urgency and priority of response." IBM PROVIDES THE CVSS SCORES "AS IS" WITHOUT WARRANTY OF ANY KIND, INCLUDING THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE. CUSTOMERS ARE RESPONSIBLE FOR ASSESSING THE IMPACT OF ANY ACTUAL OR POTENTIAL SECURITY VULNERABILITY.
The information within this database may change without notice. Use of this information constitutes acceptance for use in an AS IS condition. There are NO warranties, implied or otherwise, with regard to this information or its use. Any use of this information is at the user's risk. In no event shall IBM be held liable for any damages whatsoever arising out of or in connection with the use or spread of this information.

About IBM Security Systems

IBM Security Systems include an extensive portfolio of hardware, software solutions, professional and managed services offerings covering the spectrum of IT and business security risks: people and identity, data and information, application and process, network, server and endpoint and physical infrastructure, empowering clients to innovate and operate their businesses on the most secure infrastructure platforms. Through world-class solutions that address risk across the enterprise, IBM helps organizations build a strong security posture that helps reduce costs, improve service, and manage risk. IBM X-Force(R) Research and Development is one of the most renowned commercial security research and development groups in the world. For more information on how to address today's biggest risks, please visit us at ibm.com/security.