Vulnerability Details 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.
Exploit prediction scoring system (EPSS) score
EPSS Score 0.003
EPSS Ranking 52.0%
CVSS Severity
CVSS v2 Score 2.6
References
- http://jvn.jp/en/jp/JVN49602378/index.html
- http://jvndb.jvn.jp/ja/contents/2009/JVNDB-2009-000079.html
- http://secunia.com/advisories/37628
- http://www.osvdb.org/61118
- http://www.securityfocus.com/bid/37293
- http://www.seil.jp/seilseries/security/2009/a00697.php
- http://jvn.jp/en/jp/JVN49602378/index.html
- http://jvndb.jvn.jp/ja/contents/2009/JVNDB-2009-000079.html
- http://secunia.com/advisories/37628
- http://www.osvdb.org/61118
- http://www.securityfocus.com/bid/37293
- http://www.seil.jp/seilseries/security/2009/a00697.php
Products affected by CVE-2009-4409
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cpe:2.3:h:iij:seil/b1:1.00
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cpe:2.3:h:iij:seil/b1:2.01
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cpe:2.3:h:iij:seil/b1:2.10
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cpe:2.3:h:iij:seil/b1:2.20
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cpe:2.3:h:iij:seil/b1:2.30
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cpe:2.3:h:iij:seil/b1:2.40
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cpe:2.3:h:iij:seil/b1:2.41
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cpe:2.3:h:iij:seil/b1:2.42
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cpe:2.3:h:iij:seil/b1:2.50
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cpe:2.3:h:iij:seil/b1:2.51
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cpe:2.3:h:iij:seil/b1:2.52