CVE-2006-5229
OpenSSH portable 4.1 on SUSE Linux, and possibly other platforms and versions, and possibly under limited configurations, allows remote attackers to determine valid usernames via timing discrepancies in which responses take longer for valid usernames…
Does this matter?
EPSS puts the probability of exploitation in the next 30 days at 57.4%, higher than 99% of all known CVEs. Patch or mitigate before the next change window.
Description
OpenSSH portable 4.1 on SUSE Linux, and possibly other platforms and versions, and possibly under limited configurations, allows remote attackers to determine valid usernames via timing discrepancies in which responses take longer for valid usernames than invalid ones, as demonstrated by sshtime. NOTE: as of 20061014, it appears that this issue is dependent on the use of manually-set passwords that causes delays when processing /etc/shadow due to an increased number of rounds.
- CVSS 2.0
- 2.6 LOWAV:N/AC:H/Au:N/C:P/I:N/A:N
- EPSS
- 57.43% probability · 99th percentile
- CISA KEV
- Not listed
- Weakness
- CWE-200
- Affected
- openbsd/openssh
- Source
- cve@mitre.org
References
- http://secunia.com/advisories/25979Vendor Advisory
- http://www.osvdb.org/32721
- http://www.securityfocus.com/archive/1/448025/100/0/threaded
- http://www.securityfocus.com/archive/1/448108/100/0/threaded
- http://www.securityfocus.com/archive/1/448156/100/0/threaded
- http://www.securityfocus.com/archive/1/448702/100/0/threaded
- http://www.securityfocus.com/bid/20418
- http://www.sybsecurity.com/hack-proventia-1.pdf
- http://www.vupen.com/english/advisories/2007/2545Vendor Advisory
- http://secunia.com/advisories/25979Vendor Advisory
- http://www.osvdb.org/32721
- http://www.securityfocus.com/archive/1/448025/100/0/threaded
- http://www.securityfocus.com/archive/1/448108/100/0/threaded
- http://www.securityfocus.com/archive/1/448156/100/0/threaded
- http://www.securityfocus.com/archive/1/448702/100/0/threaded
- http://www.securityfocus.com/bid/20418
- http://www.sybsecurity.com/hack-proventia-1.pdf
- http://www.vupen.com/english/advisories/2007/2545Vendor Advisory
Source: NVD record, EPSS from FIRST.org, KEV from CISA. Refreshed daily.