CVE-2009-0642

ruby: Incorrect checks for validity of X.509 certificates

Severity Score

6.8

*CVSS v2

Exploit Likelihood

*EPSS

Affected Versions

*CPE

Public Exploits

*Multiple Sources

Exploited in Wild

*KEV

Decision

*SSVC

Descriptions

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.

ext/openssl/ossl_ocsp.c en Ruby v1.8 y v1.9 no comprueba adecuadamente el valor de retorno de la funcion OCSP_basic_verify, lo cual permitiria a atacantes remotos tener exito en la presentacion de un certificado X.509 invalido, posiblemente utilizando un certificado revocado.

*Credits: N/A

Attack Vector

Network

Attack Complexity

Medium

Authentication

None

Confidentiality

Partial

Integrity

Partial

Availability

Partial

Attack Vector

Network

Attack Complexity

Low

Authentication

None

Confidentiality

None

Integrity

Partial

Availability

None

* Common Vulnerability Scoring System

SSVC

Decision:-

Exploitation

Automatable

Tech. Impact

* Organization's Worst-case Scenario

Timeline

2009-02-18 CVE Reserved
2009-02-18 CVE Published
2023-03-07 EPSS Updated
2024-08-07 CVE Updated
2024-08-07 First Exploit
---------- Exploited in Wild
---------- KEV Due Date

CWE

CWE-287: Improper Authentication

CAPEC

References (14)

URL	Tag	Source
http://bugs.debian.org/cgi-bin/bugreport.cgi?bug=513528	X_refsource_misc
http://secunia.com/advisories/33750	Third Party Advisory
http://secunia.com/advisories/35699	Third Party Advisory
http://secunia.com/advisories/35937	Third Party Advisory
http://www.securityfocus.com/bid/33769	Vdb Entry
http://www.securitytracker.com/id?1022505	Vdb Entry
https://exchange.xforce.ibmcloud.com/vulnerabilities/48761	Vdb Entry
https://oval.cisecurity.org/repository/search/definition/oval%3Aorg.mitre.oval%3Adef%3A11450	Signature

URL	Date	SRC
http://redmine.ruby-lang.org/issues/show/1091	2024-08-07

URL	Date	SRC

URL	Date	SRC
http://www.mandriva.com/security/advisories?name=MDVSA-2009:193	2017-09-29
http://www.redhat.com/support/errata/RHSA-2009-1140.html	2017-09-29
http://www.ubuntu.com/usn/USN-805-1	2017-09-29
https://access.redhat.com/security/cve/CVE-2009-0642	2009-07-02
https://bugzilla.redhat.com/show_bug.cgi?id=486183	2009-07-02

Affected Vendors, Products, and Versions

Vendor		Product				Version		Other		Status
Vendor	Product	Version	Other	Status	<-- -->	Vendor	Product	Version	Other	Status
Ruby-lang Search vendor "Ruby-lang"		Ruby Search vendor "Ruby-lang" for product "Ruby"				1.8 Search vendor "Ruby-lang" for product "Ruby" and version "1.8"		-		Affected
Ruby-lang Search vendor "Ruby-lang"		Ruby Search vendor "Ruby-lang" for product "Ruby"				1.9 Search vendor "Ruby-lang" for product "Ruby" and version "1.9"		-		Affected