Unscored severity · published Dec 23, 2009
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…
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CVSS
1.4%
EPSS
No
On KEV
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.
Exploitation
Is it being used?
Exploit prediction (EPSS)1.4% · higher than 72% of CVEs
Exploited in the wildNo evidence yet
CISA KEVNot listed
Ransomware campaign useNot known
Affected products
Which versions
SE
Seil/b1 · Iij
1.00; 2.01; 2.10; 2.20; 2.30; 2.40; +5 more · source: NVD
References
NVD
https://nvd.nist.gov/vuln/detail/CVE-2009-4409
CVE.org
https://www.cve.org/CVERecord?id=CVE-2009-4409
jvn.jp
http://jvn.jp/en/jp/JVN49602378/index.html
jvndb.jvn.jp
http://jvndb.jvn.jp/ja/contents/2009/JVNDB-2009-000079.html
Vendor Advisory
http://secunia.com/advisories/37628
www.osvdb.org
http://www.osvdb.org/61118
www.securityfocus.com
http://www.securityfocus.com/bid/37293
Vendor Advisory
http://www.seil.jp/seilseries/security/2009/a00697.php
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