CVE-2009-4409 - CVE House
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Status published Low CVE-2009-4409

The (1) CHAP and (2) MS-CHAP-V2 authentication capabilities in the...

Vulnerability 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.

Impact Analysis

Refer to official advisory for detailed impact metrics.

Remediation

Ensure systems are updated to the latest vendor-supplied patch levels.

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Credits & Attribution

No credits recorded in the NVD database.

Affected Vendor

Affected Software

seil\/b1
Vulnerable Versions:
1.00, 2.01, 2.10, 2.20, 2.30, 2.40, 2.41, 2.42, 2.50, 2.51, 2.52

Timeline

Official Publish: December 23rd, 2009
Last Modified: September 17th, 2024
Added to House: July 19th, 2026

CVSS Vectors

Weaknesses (CWE)

No CWE data available

MITRE ATT&CK TTPs

No associated TTPs found for this vulnerability.