CVE-2010-4478

HIGH

Description

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.

References

http://kb.juniper.net/InfoCenter/index?page=content&id=JSA10673

http://seb.dbzteam.org/crypto/jpake-session-key-retrieval.pdf

http://www.openbsd.org/cgi-bin/cvsweb/src/usr.bin/ssh/jpake.c#rev1.5

http://www.openbsd.org/cgi-bin/cvsweb/src/usr.bin/ssh/jpake.c.diff?r1=1.4;r2=1.5;f=h

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%3A12338

Details

Source: MITRE

Published: 2010-12-06

Updated: 2017-09-19

Type: CWE-287

Risk Information

CVSS v2.0

Base Score: 7.5

Vector: AV:N/AC:L/Au:N/C:P/I:P/A:P

Impact Score: 6.4

Exploitability Score: 10

Severity: HIGH