CVE-2009-4409

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.

🔗 References (12)

• cve@mitrehttp://jvn.jp/en/jp/JVN49602378/index.html
• cve@mitrehttp://jvndb.jvn.jp/ja/contents/2009/JVNDB-2009-000079.html
• cve@mitrehttp://secunia.com/advisories/37628
• cve@mitrehttp://www.osvdb.org/61118
• cve@mitrehttp://www.securityfocus.com/bid/37293
• cve@mitrehttp://www.seil.jp/seilseries/security/2009/a00697.php
• af854a3a-2127-422b-91ae-364da2661108http://jvn.jp/en/jp/JVN49602378/index.html
• af854a3a-2127-422b-91ae-364da2661108http://jvndb.jvn.jp/ja/contents/2009/JVNDB-2009-000079.html
• af854a3a-2127-422b-91ae-364da2661108http://secunia.com/advisories/37628
• af854a3a-2127-422b-91ae-364da2661108http://www.osvdb.org/61118
• af854a3a-2127-422b-91ae-364da2661108http://www.securityfocus.com/bid/37293
• af854a3a-2127-422b-91ae-364da2661108http://www.seil.jp/seilseries/security/2009/a00697.php