CVE-2010-4252
HIGH severity · CVSS 7.5 · Improper authentication
7.5CVSS HIGH
Summary
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.
Impact & exploitability
Attack vectorNetwork
Attack complexityLow
Privileges required—
User interaction—
Confidentiality impact—
Integrity impact—
Availability impact—
Exploit probability (EPSS)2%
AV:N/AC:L/Au:N/C:P/I:P/A:P
Affected products we track (1)
Recommendation
Apply the vendor fix promptly. Open any affected product above for its exact safe version.
Official patch: http://cvs.openssl.org/chngview?cn=20098 ↗
Additional information
- NVD record
- http://cvs.openssl.org/chngview?cn=20098Patch
- http://secunia.com/advisories/42469Advisory
- 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://secunia.com/advisories/57353
- http://securitytracker.com/id?1024823
- http://seb.dbzteam.org/crypto/jpake-session-key-retrieval.pdfExploit