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    CVE-2013-4073

    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.

    Published:Jun 27, 2013
    Last Modified:Apr 11, 2025
    EPS:Aug 18, 2013
    EPSS Score:0.02723
    CVSS Score:6.8

    Affected Products

    Vendor
    Redhat
    Product
    Enterprise Linux
    Vendor
    Redhat
    Product
    Openshift
    Vendor
    Redhat
    Product
    Openstack
    Vendor
    Ruby-lang
    Product
    Ruby

    Exploits

    No exploit reference

    Common Weakness Enumeration

    No CWE recorded yet

    Common Attack Pattern Enumeration and Classification (CAPEC)

    No CAPEC recorded yet

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    References

    http://forums.interworx.com/threads/8000-InterWorx-Version-5-0-14-Released-on-Beta-Channel%21
    http://lists.apple.com/archives/security-announce/2013/Oct/msg00004.html
    http://lists.opensuse.org/opensuse-updates/2013-07/msg00042.html
    http://lists.opensuse.org/opensuse-updates/2013-07/msg00044.html
    http://rhn.redhat.com/errata/RHSA-2013-1090.html
    http://rhn.redhat.com/errata/RHSA-2013-1103.html
    http://rhn.redhat.com/errata/RHSA-2013-1137.html
    http://support.apple.com/kb/HT6150
    http://www.debian.org/security/2013/dsa-2738
    http://www.debian.org/security/2013/dsa-2809
    http://www.ruby-lang.org/en/news/2013/06/27/hostname-check-bypassing-vulnerability-in-openssl-client-cve-2013-4073/
    http://www.ubuntu.com/usn/USN-1902-1
    https://bugzilla.redhat.com/show_bug.cgi?id=979251
    https://puppet.com/security/cve/cve-2013-4073
    http://forums.interworx.com/threads/8000-InterWorx-Version-5-0-14-Released-on-Beta-Channel%21
    http://lists.apple.com/archives/security-announce/2013/Oct/msg00004.html
    http://lists.opensuse.org/opensuse-updates/2013-07/msg00042.html
    http://lists.opensuse.org/opensuse-updates/2013-07/msg00044.html
    http://rhn.redhat.com/errata/RHSA-2013-1090.html
    http://rhn.redhat.com/errata/RHSA-2013-1103.html
    http://rhn.redhat.com/errata/RHSA-2013-1137.html
    http://support.apple.com/kb/HT6150
    http://www.debian.org/security/2013/dsa-2738
    http://www.debian.org/security/2013/dsa-2809
    http://www.ruby-lang.org/en/news/2013/06/27/hostname-check-bypassing-vulnerability-in-openssl-client-cve-2013-4073/
    http://www.ubuntu.com/usn/USN-1902-1
    https://bugzilla.redhat.com/show_bug.cgi?id=979251
    https://puppet.com/security/cve/cve-2013-4073

    Common Vulnerability Scoring System

    Attack Vector
    Network
    Adjacent
    Local
    Physical
    Privileges Required
    None
    Low
    High
    User Interaction
    None
    Required
    Scope
    Unchanged
    Changed
    Confidentiality
    None
    Low
    High
    Integrity
    None
    Low
    High
    Availability
    None
    Low
    High