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CVE-2009-4409

nvd nist
Published: Dec 23, 2009Modified: Apr 23, 2026

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2.6
Vector
AV:N/AC:H/Au:N/C:N/I:P/A:N
Exploitability: 4.9 / Impact: 2.9
Source: NVD

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.

Affected (11)

Products: Iij: Seil/b1
Iij
1 product
Seil/b1
Configuration A
11 vulnerable
Vulnerable SoftwareAffected Versions
Iij
Seil/b1
Version 1.00
Seil/b1
Version 2.01
Seil/b1
Version 2.10
Seil/b1
Version 2.20
Seil/b1
Version 2.30
Seil/b1
Version 2.40
Seil/b1
Version 2.41
Seil/b1
Version 2.42
Seil/b1
Version 2.50
Seil/b1
Version 2.51
Seil/b1
Version 2.52

Related CWEs

CWE-287
Improper Authentication
When an actor claims to have a given identity, the product does not prove or insufficiently proves that the claim is correct.

References (12)

Source: cve@mitre.org
Source: cve@mitre.org
Source: cve@mitre.org
Vendor Advisory
Source: cve@mitre.org
Source: cve@mitre.org
Source: cve@mitre.org
Vendor Advisory
Source: af854a3a-2127-422b-91ae-364da2661108
Source: af854a3a-2127-422b-91ae-364da2661108
Source: af854a3a-2127-422b-91ae-364da2661108
Vendor Advisory
Source: af854a3a-2127-422b-91ae-364da2661108
Source: af854a3a-2127-422b-91ae-364da2661108
Source: af854a3a-2127-422b-91ae-364da2661108
Vendor Advisory

Timeline

No history available yet.