Vulnerabilities
Misconfiguration
Compliance
CVE Vulnerabilities

CVE-2013-0776

Improper Certificate Validation

Published: Feb 19, 2013 | Modified: Apr 11, 2025
CVSS 3.x
N/A
Source:
NVD
CVSS 2.x
4 MEDIUM
AV:N/AC:H/Au:N/C:P/I:P/A:N
RedHat/V2
4.3 MODERATE
AV:N/AC:M/Au:N/C:P/I:N/A:N
RedHat/V3
Ubuntu
MEDIUM
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Additional information
NVDhttps://nvd.nist.gov/vuln/detail/CVE-2013-0776
CWEhttps://cwe.mitre.org/data/definitions/295.html

Mozilla Firefox before 19.0, Firefox ESR 17.x before 17.0.3, Thunderbird before 17.0.3, Thunderbird ESR 17.x before 17.0.3, and SeaMonkey before 2.16 allow man-in-the-middle attackers to spoof the address bar by operating a proxy server that provides a 407 HTTP status code accompanied by web script, as demonstrated by a phishing attack on an HTTPS site.

Weakness

The product does not validate, or incorrectly validates, a certificate.

Affected Software

NameVendorStart VersionEnd Version
FirefoxMozilla*17.0.3 (excluding)
FirefoxMozilla*19.0 (excluding)
SeamonkeyMozilla*2.16 (excluding)
ThunderbirdMozilla*17.0.3 (excluding)
Thunderbird_esrMozilla*17.0.3 (excluding)
Red Hat Enterprise Linux 5RedHatthunderbird-0:17.0.3-1.el5_9*
Red Hat Enterprise Linux 5RedHatdevhelp-0:0.12-23.el5_9*
Red Hat Enterprise Linux 5RedHatfirefox-0:17.0.3-1.el5_9*
Red Hat Enterprise Linux 5RedHatxulrunner-0:17.0.3-1.el5_9*
Red Hat Enterprise Linux 5RedHatyelp-0:2.16.0-30.el5_9*
Red Hat Enterprise Linux 6RedHatfirefox-0:17.0.3-1.el6_3*
Red Hat Enterprise Linux 6RedHatlibproxy-0:0.3.0-4.el6_3*
Red Hat Enterprise Linux 6RedHatxulrunner-0:17.0.3-1.el6_3*
Red Hat Enterprise Linux 6RedHatyelp-0:2.28.1-17.el6_3*
Red Hat Enterprise Linux 6RedHatthunderbird-0:17.0.3-1.el6_3*
FirefoxUbuntuhardy*
FirefoxUbuntulucid*
FirefoxUbuntuoneiric*
FirefoxUbuntuprecise*
FirefoxUbuntuquantal*
FirefoxUbuntuupstream*
SeamonkeyUbuntuhardy*
SeamonkeyUbuntulucid*
SeamonkeyUbuntuoneiric*
SeamonkeyUbuntuupstream*
ThunderbirdUbuntuhardy*
ThunderbirdUbuntulucid*
ThunderbirdUbuntuoneiric*
ThunderbirdUbuntuprecise*
ThunderbirdUbuntuquantal*
ThunderbirdUbuntuupstream*
Xulrunner-1.9.2Ubuntuhardy*
Xulrunner-1.9.2Ubuntulucid*

Potential Mitigations

References

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