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Last updated: 10/20/2014 5:42:34 AM

CVE Publication rate: 45.23

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Vulnerability Workload Index: 12.79
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National Cyber Awareness System

Vulnerability Summary for CVE-2011-3422

Original release date: 09/12/2011
Last revised: 02/03/2012
Source: US-CERT/NIST

Overview

The Keychain implementation in Apple Mac OS X 10.6.8 and earlier does not properly handle an untrusted attribute of a Certification Authority certificate, which makes it easier for man-in-the-middle attackers to spoof arbitrary SSL servers via an Extended Validation certificate, as demonstrated by https access with Safari.

Impact

CVSS Severity (version 2.0):
CVSS v2 Base Score: 4.3 (MEDIUM) (AV:N/AC:M/Au:N/C:N/I:P/A:N) (legend)
Impact Subscore: 2.9
Exploitability Subscore: 8.6
CVSS Version 2 Metrics:
Access Vector: Network exploitable
Access Complexity: Medium
Authentication: Not required to exploit
Impact Type: Allows unauthorized modification

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External Source: XF
Name: macos-keychain-sec-bypass(69556)
External Source: APPLE
Name: APPLE-SA-2012-02-01-1
External Source: CONFIRM
Name: http://support.apple.com/kb/HT5130
External Source: BID
Name: 49429
External Source: MISC
Name: http://www.computerworld.com/s/article/9219669/Mac_OS_X_can_t_properly_revoke_dodgy_digital_certificates
External Source: SECTRACK
Name: 1026002

Technical Details

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