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Vulnerability Details : CVE-2016-5420

curl and libcurl before 7.50.1 do not check the client certificate when choosing the TLS connection to reuse, which might allow remote attackers to hijack the authentication of the connection by leveraging a previously created connection with a different client certificate.
Publish Date : 2016-08-10 Last Update Date : 2018-11-13
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- CVSS Scores & Vulnerability Types

CVSS Score
5.0
Confidentiality Impact None (There is no impact to the confidentiality of the system.)
Integrity Impact Partial (Modification of some system files or information is possible, but the attacker does not have control over what can be modified, or the scope of what the attacker can affect is limited.)
Availability Impact None (There is no impact to the availability of the system.)
Access Complexity Low (Specialized access conditions or extenuating circumstances do not exist. Very little knowledge or skill is required to exploit. )
Authentication Not required (Authentication is not required to exploit the vulnerability.)
Gained Access None
Vulnerability Type(s)
CWE ID 285

- Related OVAL Definitions

Title Definition Id Class Family
RHSA-2016:2575: curl security, bug fix, and enhancement update (Moderate) oval:com.redhat.rhsa:def:20162575 unix
OVAL (Open Vulnerability and Assessment Language) definitions define exactly what should be done to verify a vulnerability or a missing patch. Check out the OVAL definitions if you want to learn what you should do to verify a vulnerability.

- Products Affected By CVE-2016-5420

# Product Type Vendor Product Version Update Edition Language
1 OS Debian Debian Linux 8.0 * * * Version Details Vulnerabilities
2 Application Haxx Libcurl * * * * Version Details Vulnerabilities
3 OS Opensuse Leap 42.1 * * * Version Details Vulnerabilities

- Number Of Affected Versions By Product

Vendor Product Vulnerable Versions
Debian Debian Linux 1
Haxx Libcurl 1
Opensuse Leap 1

- References For CVE-2016-5420

http://www.securityfocus.com/bid/92309
BID 92309 cURL/libcURL CVE-2016-5420 Certificate Validation Security Bypass Vulnerability Release Date:2017-04-20
https://curl.haxx.se/docs/adv_20160803B.html
http://rhn.redhat.com/errata/RHSA-2016-2957.html
REDHAT RHSA-2016:2957
http://rhn.redhat.com/errata/RHSA-2016-2575.html
REDHAT RHSA-2016:2575
http://www.oracle.com/technetwork/security-advisory/cpuoct2018-4428296.html CONFIRM
http://www.securitytracker.com/id/1036739
SECTRACK 1036739
https://security.gentoo.org/glsa/201701-47
GENTOO GLSA-201701-47
https://source.android.com/security/bulletin/2016-12-01.html CONFIRM
https://access.redhat.com/errata/RHSA-2018:3558
REDHAT RHSA-2018:3558
https://lists.fedoraproject.org/archives/list/[email protected]/message/GLPXQQKURBQFM4XM6645VRPTOE2AWG33/
FEDORA FEDORA-2016-24316f1f56
https://www.tenable.com/security/tns-2016-18 CONFIRM
http://www.ubuntu.com/usn/USN-3048-1
UBUNTU USN-3048-1
http://www.slackware.com/security/viewer.php?l=slackware-security&y=2016&m=slackware-security.563059
SLACKWARE SSA:2016-219-01
http://www.securitytracker.com/id/1036537
SECTRACK 1036537
http://www.debian.org/security/2016/dsa-3638
DEBIAN DSA-3638
http://lists.opensuse.org/opensuse-updates/2016-09/msg00094.html
SUSE openSUSE-SU-2016:2379
https://lists.fedoraproject.org/archives/list/[email protected]/message/K3GQH4V3XAQ5Z53AMQRDEC3C3UHTW7QR/
FEDORA FEDORA-2016-8354baae0f
http://lists.opensuse.org/opensuse-updates/2016-09/msg00011.html
SUSE openSUSE-SU-2016:2227

- Metasploit Modules Related To CVE-2016-5420

There are not any metasploit modules related to this CVE entry (Please visit www.metasploit.com for more information)
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