CVE-2003-0190
MEDIUM severity · CVSS 5 · CWE-203
5CVSS MEDIUM
Summary
OpenSSH-portable (OpenSSH) 3.6.1p1 and earlier with PAM support enabled immediately sends an error message when a user does not exist, which allows remote attackers to determine valid usernames via a timing attack.
Impact & exploitability
Attack vectorNetwork
Attack complexityLow
Privileges required—
User interaction—
Confidentiality impact—
Integrity impactNone
Availability impactNone
Exploit probability (EPSS)77%
AV:N/AC:L/Au:N/C:P/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.
Official patch: http://www.securityfocus.com/bid/7467 ↗
Additional information
- NVD record
- http://www.securityfocus.com/bid/7467Patch
- http://lab.mediaservice.net/advisory/2003-01-openssh.txt
- http://lists.grok.org.uk/pipermail/full-disclosure/2003-April/004815.html
- http://marc.info/?l=bugtraq&m=105172058404810&w=2Advisory
- http://marc.info/?l=bugtraq&m=106018677302607&w=2Advisory
- http://www.redhat.com/support/errata/RHSA-2003-222.html
- http://www.redhat.com/support/errata/RHSA-2003-224.html
- http://www.turbolinux.com/security/TLSA-2003-31.txt