Vulnerability Details : CVE-2009-0642
ext/openssl/ossl_ocsp.c in Ruby 1.8 and 1.9 does not properly check the return value from the OCSP_basic_verify function, which might allow remote attackers to successfully present an invalid X.509 certificate, possibly involving a revoked certificate.
Vulnerability category: BypassGain privilege
Exploit prediction scoring system (EPSS) score for CVE-2009-0642
Probability of exploitation activity in the next 30 days: 2.14%
Percentile, the proportion of vulnerabilities that are scored at or less: ~ 88 % EPSS Score History EPSS FAQ
CVSS scores for CVE-2009-0642
| Base Score | Base Severity | CVSS Vector | Exploitability Score | Impact Score | Source |
|---|---|---|---|---|---|
|
6.8
|
MEDIUM | AV:N/AC:M/Au:N/C:P/I:P/A:P |
8.6
|
6.4
|
[email protected] |
CWE ids for CVE-2009-0642
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When an actor claims to have a given identity, the product does not prove or insufficiently proves that the claim is correct.Assigned by: [email protected] (Primary)
References for CVE-2009-0642
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http://www.mandriva.com/security/advisories?name=MDVSA-2009:193
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http://www.securitytracker.com/id?1022505
- http://www.redhat.com/support/errata/RHSA-2009-1140.html
- http://www.ubuntu.com/usn/USN-805-1
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https://oval.cisecurity.org/repository/search/definition/oval%3Aorg.mitre.oval%3Adef%3A11450
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http://www.securityfocus.com/bid/33769
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http://redmine.ruby-lang.org/issues/show/1091
Exploit
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http://bugs.debian.org/cgi-bin/bugreport.cgi?bug=513528
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https://exchange.xforce.ibmcloud.com/vulnerabilities/48761
Products affected by CVE-2009-0642
- cpe:2.3:a:ruby-lang:ruby:1.9:*:*:*:*:*:*:*
- cpe:2.3:a:ruby-lang:ruby:1.8:*:*:*:*:*:*:*