Description
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.
Metrics
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:NWeakness enumeration
Affected software
| Vendor | Product | Versions |
|---|---|---|
| n/a | n/a | n/a |
References
- 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
- http://www.openbsd.org/cgi-bin/cvsweb/src/usr.bin/ssh/auth-options.c.diff?r1=1.53%3Br2=1.54
- http://www.securityfocus.com/bid/51702
- https://exchange.xforce.ibmcloud.com/vulnerabilities/72756
- 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
- http://www.openbsd.org/cgi-bin/cvsweb/src/usr.bin/ssh/auth-options.c.diff?r1=1.53%3Br2=1.54
- http://www.securityfocus.com/bid/51702
- https://exchange.xforce.ibmcloud.com/vulnerabilities/72756
Timeline
- Published
- Jan 27, 2012
- Last modified
- Jun 16, 2026
- NVD status
- Modified