CVE-2012-0814
MEDIUM severity · CVSS 6.5 · CWE-255
6.5CVSS MEDIUM
Summary
The auth_parse_options function in auth-options.c in sshd in OpenSSH before 5.7 provides debug messages containing authorized_keys command options, which allows remote authenticated users to obtain potentially sensitive information by reading these messages, as demonstrated by the shared user account required by Gitolite. NOTE: this can cross privilege boundaries because a user account may intentionally have no shell or filesystem access, and therefore may have no supported way to read an authorized_keys file in its own home directory.
Impact & exploitability
Attack vectorNetwork
Attack complexityLow
Privileges requiredLow
User interactionNone
Confidentiality impactHigh
Integrity impactNone
Availability impactNone
Exploit probability (EPSS)4%
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:N
Affected products we track (1)
Recommendation
Apply the vendor fix in your normal patch cycle. Open any affected product above for its exact safe version.
Additional information
- NVD record
- http://bugs.debian.org/cgi-bin/bugreport.cgi?bug=657445
- http://kb.juniper.net/InfoCenter/index?page=content&id=JSA10673
- http://openwall.com/lists/oss-security/2012/01/26/15
- http://openwall.com/lists/oss-security/2012/01/26/16
- http://openwall.com/lists/oss-security/2012/01/27/1
- http://openwall.com/lists/oss-security/2012/01/27/4
- http://osvdb.org/78706
- http://www.openbsd.org/cgi-bin/cvsweb/src/usr.bin/ssh/auth-options.c