OpenSSL J-PAKE security bypass

openssl-jpake-security-bypass (63636) The risk level is classified as MediumMedium Risk

Description:

OpenSSL could allow a remote attacker to bypass security restrictions, caused by an error in the J-PAKE implementation. A remote attacker could exploit this vulnerability to authenticate without the shared secret.

*CVSS:

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

Consequences:

Bypass Security

Remedy:

Upgrade to the latest version of OpenSSL (1.0.0c or later), available from the OpenSSL Web site. See References.

For other distributions:
Apply the appropriate update for your system. See References.

References:

  • HP Security Bulletin HPSBOV02670 SSRT100475: HP OpenVMS running SSL, Remote Denial of Service (DoS), Unauthorized Disclosure of Information, Unauthorized Modification.
  • IBM Security Bulletin 1627934: IBM Sterling Connect:Enterprise for UNIX is affected by multiple vulnerabilities in OpenSSL.
  • IBM Security Bulletin 1633107: IBM Sterling Connect:Express for UNIX is affected by multiple vulnerabilities in OpenSSL.
  • IBM Security Bulletin 1637929: IBM Tivoli Netcool System Service Monitors/Application Service Monitors is affected by multiple OpenSSL vulnerabilities.
  • OpenSSL Security Advisory [2 December 2010]: OpenSSL Ciphersuite Downgrade Attack.
  • BID-45163: OpenSSL J-PAKE Security Bypass Vulnerability
  • CVE-2010-4252: OpenSSL before 1.0.0c, 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.
  • OSVDB ID: 69657: OpenSSL J-PAKE Public Parameter Validation Shared Secret Authentication Bypass
  • SA57353: IBM Storage System DS8870 OpenSSL Multiple Vulnerabilities
  • SECTRACK ID: 1024823: OpenSSL J-PAKE Validation Error Lets Remote Users Validate Without Shared Secret Key

Platforms Affected:

  • HP SSL for OpenVMS 1.4
  • IBM Netcool System Service Monitor 4.0
  • IBM Sterling Connect Enterprise for UNIX 1.4
  • IBM Sterling Connect Enterprise for UNIX 1.5
  • IBM Sterling Connect Enterprise for UNIX 2.4
  • IBM Sterling Connect Enterprise for UNIX 2.5
  • OpenSSL OpenSSL 0.9.8h
  • OpenSSL OpenSSL 0.9.8i
  • OpenSSL OpenSSL 0.9.8j
  • OpenSSL OpenSSL 0.9.8k
  • OpenSSL OpenSSL 0.9.8l
  • OpenSSL OpenSSL 0.9.8m
  • OpenSSL OpenSSL 1.0.0

Reported:

Dec 02, 2010

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* 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.

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