CVE-2010-4478
Published: December 6, 2010Last modified: July 22, 2025
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.
Severity score breakdown
| Parameter | Value |
|---|---|
| Base score | 9.8 |
| Attack Vector | NETWORK |
| Attack complexity | LOW |
| Privileges required | NONE |
| User interaction | NONE |
| Scope | UNCHANGED |
| Confidentiality | HIGH |
| Integrity impact | HIGH |
| Availability impact | HIGH |
| Vector | CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H |
Status
| Product | Release | Package | Status |
|---|---|---|---|
| Alpaquita Linux | 23 LTS | openssh | Not affected (9.1_p1-r5) |
| Stream | openssh | Not affected (9.4_p1-r0) | |
| Hardened Containers | 23 LTS | openssh | Not affected (9.1_p1-r5) |
| Stream | openssh | Not affected (9.4_p1-r0) |
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%3Br2=1.5%3Bf=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