PT-2013-4833 · Ruby+4 · Ruby+4

Vincent Danen · Published 2013-07-17 · Updated 2018-08-13 · CVE-2013-4073

Positive Technologies (AI Summary)

CVSS v2.0

6.8

Medium

Base vector

AV:N/AC:M/Au:N/C:P/I:P/A:P

Name of the Vulnerable Software and Affected Versions Ruby versions 1.8 before 1.8.7-p374 Ruby versions 1.9 before 1.9.3-p448 Ruby versions 2.0 before 2.0.0-p247

Description The issue allows man-in-the-middle attackers to spoof arbitrary SSL servers via a crafted certificate issued by a legitimate Certification Authority. This occurs because the OpenSSL::SSL.verify certificate identity function does not properly handle a '0' character in a domain name in the Subject Alternative Name field of an X.509 certificate.

Recommendations For Ruby 1.8, update to version 1.8.7-p374 or later. For Ruby 1.9, update to version 1.9.3-p448 or later. For Ruby 2.0, update to version 2.0.0-p247 or later.

Fix

Weakness Enumeration

CWE-310

Related Identifiers

ALT-PU-2014-1334

CESA-2013_1090

CVE-2013-4073

DSA-2738-1

DSA-2809-1

MGASA-2013-0229

RHSA-2013:1090

RHSA-2013:1103

RHSA-2013:1137

RHSA-2013_1090

SUSE-SU-2013_1260-2

SUSE-SU-2013_1260-3

SUSE-SU-2014_0337-1

Affected Products

Alt Linux

Centos

Red Hat

Ruby

Suse

References · 50

• http://rhn.redhat.com/errata/RHSA-2013-1137.html · Vendor Advisory
• http://ruby-lang.org/en/news/2013/06/27/hostname-check-bypassing-vulnerability-in-openssl-client-cve-2013-4073 · Vendor Advisory
• http://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2013-4238 · Security Note
• https://advisories.mageia.org/MGASA-2013-0229.html · Security Note
• http://lists.opensuse.org/opensuse-updates/2013-07/msg00042.html · Vendor Advisory
• http://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2012-5380 · Security Note
• http://debian.org/security/2013/dsa-2738 · Vendor Advisory
• https://osv.dev/vulnerability/MGASA-2013-0229 · Vendor Advisory
• http://lists.apple.com/archives/security-announce/2013/Oct/msg00004.html · Vendor Advisory
• http://rhn.redhat.com/errata/RHSA-2013-1103.html · Vendor Advisory
• http://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2013-4073 · Security Note
• https://linux.oracle.com/errata/ELSA-2013-1090.html · Vendor Advisory
• https://nvd.nist.gov/vuln/detail/CVE-2013-4073 · Security Note
• http://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2012-5371 · Security Note
• http://ubuntu.com/usn/USN-1902-1 · Vendor Advisory