69657 : OpenSSL J-PAKE Public Parameter Validation Shared Secret Authentication Bypass
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Views This Week	Views All Time	Added to OSVDB	Last Modified	Modified (since 2008)	Percent Complete
8	906	over 2 years ago	about 1 month ago	6 times	100%

Timeline

Disclosure Date
2010-11-29

Description

OpenSSL contains a flaw related to public parameter validation of the J-PAKE protocol. The issue is triggered when a remote attacker uses crafted values for each round of the protocol to avoid the requirement for the shared sacred and bypass authentication.

Classification

Location: Remote / Network Access
Attack Type: Authentication Management, Cryptographic
Impact: Loss of Integrity
Solution: Upgrade
Exploit: Exploit Unknown
Disclosure: Vendor Verified

Solution

Upgrade to version 1.0.0c or higher, as it has been reported to fix this vulnerability. An upgrade is required as there are no known workarounds.

Products

The OpenSSL Project	OpenSSL	0.9.8p
		1.0.0b

IBM Corporation	Hardware Management Console (HMC)	V7R7.6.0
		V7R7.7.0 (not affected)

References

Security Tracker: 1024823
CVE ID: 2010-4252 (see also: NVD)
Secunia Advisory ID: 43600 44533 46342 50476 52543 52869 52892
Bugtraq ID: 45163
VUPEN Advisory: ADV-2010-3120
Keyword: c02737002 HPSBUX02638 SSRT100339
Vendor Specific News/Changelog Entry: http://cvs.openssl.org/chngview?cn=20098
http://openssl.org/news/secadv_20101202.txt
http://security.gentoo.org/glsa/glsa-201110-01.xml
http://www.ibm.com/support/docview.wss?uid=nas12088ececb530423186257b410072035e
http://www.ibm.com/support/docview.wss?uid=swg21627934
http://www.ibm.com/support/docview.wss?uid=swg21633107
https://bugzilla.redhat.com/show_bug.cgi?id=659297
Other Advisory URL: http://seb.dbzteam.org/crypto/jpake-session-key-retrieval.pdf
https://github.com/seb-m/jpake
Mail List Post: http://seclists.org/bugtraq/2011/May/68
http://seclists.org/fulldisclosure/2011/Oct/410
Vendor Specific Advisory URL: http://security.gentoo.org/glsa/glsa-201110-01.xml
http://www.ibm.com/connections/blogs/PSIRT/entry/security_bulletin_ibm_sterling_connect_enterprise_for_unix_is_affected_by_multiple_vulnerabilities_in_openssl12
http://www.itrc.hp.com/service/cki/docDisplay.do?docId=emr_na-c02737002
http://www.vmware.com/security/advisories/VMSA-2012-0013.html
https://www.itrc.hp.com/service/cki/docDisplay.do?docId=emr_na-c02824483
News Article: http://www.h-online.com/security/news/item/New-version-of-OpenSSL-fixes-two-vulnerabilities-1150044.html

Tools & Filters

	51058
	5720

Credit

Sébastien Martini - dbzteam.org

CVSSv2 Score

CVSSv2 Base Score = 7.5
Source: nvd.nist.gov | Generated: 2010-12-07 | Disagree?

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