VulnerabilityModified
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…
LOW 2.6EPSS 1.36%
Does this matter?
Lower severity and a low EPSS score (1.36%). Track it; it rarely justifies an emergency change on its own.
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.
- CVSS 2.0
- 2.6 LOWAV:N/AC:H/Au:N/C:N/I:P/A:N
- EPSS
- 1.36% probability · 70th percentile
- CISA KEV
- Not listed
- Weakness
- CWE-287
- Affected
- iij/seil\/b1
- Source
- cve@mitre.org
References
- http://jvn.jp/en/jp/JVN49602378/index.html
- http://jvndb.jvn.jp/ja/contents/2009/JVNDB-2009-000079.html
- http://secunia.com/advisories/37628Vendor Advisory
- http://www.osvdb.org/61118
- http://www.securityfocus.com/bid/37293
- http://www.seil.jp/seilseries/security/2009/a00697.phpVendor Advisory
- http://jvn.jp/en/jp/JVN49602378/index.html
- http://jvndb.jvn.jp/ja/contents/2009/JVNDB-2009-000079.html
- http://secunia.com/advisories/37628Vendor Advisory
- http://www.osvdb.org/61118
- http://www.securityfocus.com/bid/37293
- http://www.seil.jp/seilseries/security/2009/a00697.phpVendor Advisory
Source: NVD record, EPSS from FIRST.org, KEV from CISA. Refreshed daily.