Instituto Nacional de ciberseguridad. Sección Incibe
Instituto Nacional de Ciberseguridad. Sección INCIBE-CERT

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CVE-2013-4073

Severity CVSS v4.0:
Pending analysis
Type:
CWE-310 Cryptographic Issues
Publication date:
18/08/2013
Last modified:
11/04/2025

Description

The OpenSSL::SSL.verify_certificate_identity function in lib/openssl/ssl.rb in Ruby 1.8 before 1.8.7-p374, 1.9 before 1.9.3-p448, and 2.0 before 2.0.0-p247 does not properly handle a '\0' character in a domain name in the Subject Alternative Name field of an X.509 certificate, which allows man-in-the-middle attackers to spoof arbitrary SSL servers via a crafted certificate issued by a legitimate Certification Authority, a related issue to CVE-2009-2408.

Impact

Vector 2.0
AV:N/AC:M/Au:N/C:P/I:P/A:P CVSS v2.0 Severity and Metrics:

Base Score: 6.80 MEDIUM
Vector: AV:N/AC:M/Au:N/C:P/I:P/A:P

Attack Vector (AV): Network
Attack Complexity (AC): Medium
Authentication (Au): None
Confidentiality (C): Physical
Integrity (I): Physical
Availability (A): Physical

Base Score 2.0
6.80
Severity 2.0
MEDIUM

Vulnerable products and versions

CPE From Up to
cpe:2.3:a:ruby-lang:ruby:1.8.6-26:*:*:*:*:*:*:*
cpe:2.3:a:ruby-lang:ruby:1.8.7:*:*:*:*:*:*:*
cpe:2.3:a:ruby-lang:ruby:1.8.7:p160:*:*:*:*:*:*
cpe:2.3:a:ruby-lang:ruby:1.8.7:p17:*:*:*:*:*:*
cpe:2.3:a:ruby-lang:ruby:1.8.7:p173:*:*:*:*:*:*
cpe:2.3:a:ruby-lang:ruby:1.8.7:p174:*:*:*:*:*:*
cpe:2.3:a:ruby-lang:ruby:1.8.7:p22:*:*:*:*:*:*
cpe:2.3:a:ruby-lang:ruby:1.8.7:p248:*:*:*:*:*:*
cpe:2.3:a:ruby-lang:ruby:1.8.7:p249:*:*:*:*:*:*
cpe:2.3:a:ruby-lang:ruby:1.8.7:p299:*:*:*:*:*:*
cpe:2.3:a:ruby-lang:ruby:1.8.7:p301:*:*:*:*:*:*
cpe:2.3:a:ruby-lang:ruby:1.8.7:p302:*:*:*:*:*:*
cpe:2.3:a:ruby-lang:ruby:1.8.7:p330:*:*:*:*:*:*
cpe:2.3:a:ruby-lang:ruby:1.8.7:p334:*:*:*:*:*:*
cpe:2.3:a:ruby-lang:ruby:1.8.7:p352:*:*:*:*:*:*

To consult the complete list of CPE names with products and versions, see this page


References to Advisories, Solutions, and Tools