CVE-2009-0642 Security feature bypass in n/a
Attackers can bypass certificate revocation checks in Ruby's OpenSSL extension by presenting invalid X.509 certificates, undermining TLS security.
- Exploited in the wild
- Not known
- Login needed
- Not needed
- Attackable
- Over the internet
- Victim action needed
- Not needed
- Fix
- Available
What is CVE-2009-0642?
CVE-2009-0642 is a medium-severity vulnerability in Ruby-Lang Ruby, published on 18 Feb 2009. An attacker can exploit it over the internet without logging in, with no action from the victim.
Official description
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.
Weakness: CWE-287
Which versions are affected by CVE-2009-0642?
It affects 1 product.
Products include Ruby-Lang Ruby.
How do I fix CVE-2009-0642?
Upgrade to a fixed version.
Is CVE-2009-0642 being exploited?
There is no known exploitation of CVE-2009-0642 in the wild and no public exploit code.
Other vulnerabilities in Ruby-Lang Ruby
Sources
Also known as GHSA-4gvm-4mw2-9fpv.