National Cyber Awareness System
Vulnerability Summary for CVE-2010-4478
Original release date:12/06/2010
Last revised:07/19/2011
Source:
US-CERT/NIST
Overview
OpenSSH 5.6 and earlier, when J-PAKE is enabled, does not properly validate the public parameters in the J-PAKE protocol, which allows remote attackers to bypass the need for knowledge of the shared secret, and successfully authenticate, by sending crafted values in each round of the protocol, a related issue to CVE-2010-4252.
Impact
CVSS Severity (version 2.0):
Impact Subscore:
6.4
Exploitability Subscore:
10.0
CVSS Version 2 Metrics:
Access Vector: Network exploitable
Access Complexity: Low
Authentication: Not required to exploit
Impact Type:Allows unauthorized disclosure of information; Allows unauthorized modification; Allows disruption of service
References to Advisories, Solutions, and Tools
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External Source: CONFIRM
Name: https://bugzilla.redhat.com/show_bug.cgi?id=659297
Type: Patch Information
External Source: CONFIRM
Name: http://www.openbsd.org/cgi-bin/cvsweb/src/usr.bin/ssh/jpake.c.diff?r1=1.4;r2=1.5;f=h
Type: Patch Information
External Source: CONFIRM
Name: http://www.openbsd.org/cgi-bin/cvsweb/src/usr.bin/ssh/jpake.c#rev1.5
Type: Patch Information
External Source: MISC
Name: https://github.com/seb-m/jpake
External Source: MISC
Name: http://seb.dbzteam.org/crypto/jpake-session-key-retrieval.pdf
External Source: OVAL
Name: oval:org.mitre.oval:def:12338
References to Check Content
Identifier:oval:org.mitre.oval:def:12338
Check System:http://oval.mitre.org/XMLSchema/oval-definitions-5
