Information Exposure Through Timing Discrepancy in OpenSSH - CVE-2003-0190
Published: December 16, 2022 / Updated: December 16, 2022
Vulnerability identifier: #VU70395
CSH Severity: Medium
CVSS v4: 6.9 [CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:L/VI:N/VA:N/SC:N/SI:N/SA:N]
CVE-ID: CVE-2003-0190
CWE-ID: CWE-208
Exploitation vector: Remote access
Exploit availability:
Public exploit is available
Vulnerability details
The vulnerability allows a remote attacker to gain access to potentially sensitive information.
The vulnerability exists due to the affected application sends an error message when a user does not exist. A remote attacker can determine valid usernames via a timing attack.
Affected software
OpenSSH
How to mitigate CVE-2003-0190
Install updates from vendor's website.
OpenSSH - update to 3.6.1p2
Links to Public Exploits and PoC-codes
External References
- http://www.securityfocus.com/bid/7467
- http://lists.grok.org.uk/pipermail/full-disclosure/2003-April/004815.html
- http://lab.mediaservice.net/advisory/2003-01-openssh.txt
- 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
- http://marc.info/?l=bugtraq&m=105172058404810&w=2
- http://marc.info/?l=bugtraq&m=106018677302607&w=2
- https://oval.cisecurity.org/repository/search/definition/oval%3Aorg.mitre.oval%3Adef%3A445