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.

References

• https://nvd.nist.gov/vuln/detail/CVE-2010-4252
• https://bugzilla.redhat.com/show_bug.cgi?id=659297
• https://github.com/seb-m/jpake
• https://oval.cisecurity.org/repository/search/definition/oval%3Aorg.mitre.oval%3Adef%3A19039
• http://cvs.openssl.org/chngview?cn=20098
• http://marc.info/?l=bugtraq&m=129916880600544&w=2
• http://marc.info/?l=bugtraq&m=130497251507577&w=2
• http://openssl.org/news/secadv_20101202.txt
• http://seb.dbzteam.org/crypto/jpake-session-key-retrieval.pdf
• http://secunia.com/advisories/42469
• http://secunia.com/advisories/57353
• http://securitytracker.com/id?1024823
• http://slackware.com/security/viewer.php?l=slackware-security&y=2010&m=slackware-security.668471
• http://www-01.ibm.com/support/docview.wss?uid=ssg1S1004564
• http://www.securityfocus.com/bid/45163
• http://www.vupen.com/english/advisories/2010/3120
• http://www.vupen.com/english/advisories/2010/3122
• https://access.redhat.com/security/cve/CVE-2010-4252