CVE-2009-4409

Severity CVSS v4.0:
Pending analysis
Type:
CWE-287 Authentication Issues
Publication date:
23/12/2009
Last modified:
09/04/2025

Description

The (1) CHAP and (2) MS-CHAP-V2 authentication capabilities in the PPP Access Concentrator (PPPAC) function in Internet Initiative Japan SEIL/B1 firmware 1.00 through 2.52 use the same challenge for each authentication attempt, which allows remote attackers to bypass authentication via a replay attack.

Vulnerable products and versions

CPE From Up to
cpe:2.3:h:iij:seil\/b1:1.00:*:*:*:*:*:*:*
cpe:2.3:h:iij:seil\/b1:2.01:*:*:*:*:*:*:*
cpe:2.3:h:iij:seil\/b1:2.10:*:*:*:*:*:*:*
cpe:2.3:h:iij:seil\/b1:2.20:*:*:*:*:*:*:*
cpe:2.3:h:iij:seil\/b1:2.30:*:*:*:*:*:*:*
cpe:2.3:h:iij:seil\/b1:2.40:*:*:*:*:*:*:*
cpe:2.3:h:iij:seil\/b1:2.41:*:*:*:*:*:*:*
cpe:2.3:h:iij:seil\/b1:2.42:*:*:*:*:*:*:*
cpe:2.3:h:iij:seil\/b1:2.50:*:*:*:*:*:*:*
cpe:2.3:h:iij:seil\/b1:2.51:*:*:*:*:*:*:*
cpe:2.3:h:iij:seil\/b1:2.52:*:*:*:*:*:*:*