CVEvulnerability
CVE-2009-4409
2.6 LOW
Official page ↗
- Status
- Modified
- Published
- 2009-12-23
- Last modified
- 2026-06-16
- Assigner
- [email protected]
- CVSS 2.0 ([email protected])
- 2.6 LOW — AV:N/AC:H/Au:N/C:N/I:P/A:N
- Weaknesses
- CWE-287
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 configurations
• iij seil\/b1 1.00
• iij seil\/b1 2.01
• iij seil\/b1 2.10
• iij seil\/b1 2.20
• iij seil\/b1 2.30
• iij seil\/b1 2.40
• iij seil\/b1 2.41
• iij seil\/b1 2.42
• iij seil\/b1 2.50
• iij seil\/b1 2.51
• iij seil\/b1 2.52
Related
Weakness · CWE (1)
- CWE-287 Improper Authentication weakness
References
- http://jvn.jp/en/jp/JVN49602378/index.html jvn.jp
- http://jvndb.jvn.jp/ja/contents/2009/JVNDB-2009-000079.html jvndb.jvn.jp
- http://secunia.com/advisories/37628 Vendor Advisory
- http://www.osvdb.org/61118 www.osvdb.org
- http://www.securityfocus.com/bid/37293 www.securityfocus.com
- http://www.seil.jp/seilseries/security/2009/a00697.php Vendor Advisory
- http://jvn.jp/en/jp/JVN49602378/index.html jvn.jp
- http://jvndb.jvn.jp/ja/contents/2009/JVNDB-2009-000079.html jvndb.jvn.jp
- http://secunia.com/advisories/37628 Vendor Advisory
- http://www.osvdb.org/61118 www.osvdb.org
- http://www.securityfocus.com/bid/37293 www.securityfocus.com
- http://www.seil.jp/seilseries/security/2009/a00697.php Vendor Advisory