Vulnerability Monitor

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CVE-2003-0190

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.

Published

2003-05-12T04:00:00.000

Last Modified

2025-04-03T01:03:51.193

Status

Deferred

Source

[email protected]

Severity

CVSSv2: 5.0 (MEDIUM)

CVSSv2 Vector

AV:N/AC:L/Au:N/C:P/I:N/A:N

  • Access Vector: NETWORK
  • Access Complexity: LOW
  • Authentication: NONE
  • Confidentiality Impact: PARTIAL
  • Integrity Impact: NONE
  • Availability Impact: NONE
Exploitability Score

10.0

Impact Score

2.9

Weaknesses
  • Type: Primary
    CWE-203
Affected Vendors & Products
Type Vendor Product Version/Range Vulnerable?
Application openbsd openssh < 3.6.1 Yes
Application openbsd openssh 3.6.1 Yes
Application openpkg openpkg 1.2 Yes
Application openpkg openpkg 1.3 Yes
Operating System siemens scalance_x204rna_ecc_firmware < 3.2.7 Yes
Hardware siemens scalance_x204rna_ecc - No
Operating System siemens scalance_x204rna_firmware < 3.2.7 Yes
Hardware siemens scalance_x204rna - No
References