CVEvulnerability

CVE-2003-0190

5.0 MEDIUM Published 2003-05-12 Modified 2026-06-16 Official page ↗
Status
Modified
Published
2003-05-12
Last modified
2026-06-16
Assigner
[email protected]
CVSS 2.0 ([email protected])
5.0 MEDIUM — AV:N/AC:L/Au:N/C:P/I:N/A:N
Weaknesses
CWE-203

Description

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.

Affected configurations

• openbsd openssh (< 3.6.1) • openbsd openssh 3.6.1 • openpkg openpkg 1.2 • openpkg openpkg 1.3 • siemens scalance x204rna ecc firmware (< 3.2.7) • siemens scalance x204rna firmware (< 3.2.7)

Related

Weakness · CWE (1)

  • CWE-203 Observable Discrepancy weakness

Referenced by CWE · observed example (4)

  • CWE-200 Exposure of Sensitive Information to an Unauthorized Actor weakness
  • CWE-203 Observable Discrepancy weakness
  • CWE-206 Observable Internal Behavioral Discrepancy weakness
  • CWE-208 Observable Timing Discrepancy weakness

References