Mozilla Firefox 14 SSL Certificate OnLocationChange use after free

CVSS Meta Temp Score
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CTI Interest Score
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3.9$0-$5k0.00

A vulnerability was found in Mozilla Firefox 14 (Web Browser). It has been classified as problematic. This affects the function OnLocationChange of the component SSL Certificate Handler. The manipulation with an unknown input leads to a use after free vulnerability. CWE is classifying the issue as CWE-416. Referencing memory after it has been freed can cause a program to crash, use unexpected values, or execute code. This is going to have an impact on integrity. The summary by CVE is:

Mozilla Firefox before 15.0, Firefox ESR 10.x before 10.0.7, and SeaMonkey before 2.12 do not properly handle onLocationChange events during navigation between different https sites, which allows remote attackers to spoof the X.509 certificate information in the address bar via a crafted web page.

The weakness was presented 08/28/2012 by Mark Poticha as MFSA 2012-69 as confirmed advisory (Website). It is possible to read the advisory at mozilla.org. The public release was coordinated in cooperation with Mozilla. This vulnerability is uniquely identified as CVE-2012-3976 since 07/11/2012. It is possible to initiate the attack remotely. The successful exploitation needs a authentication. Technical details and a private exploit are known.

A private exploit has been developed in Javascript. It is declared as proof-of-concept. The vulnerability scanner Nessus provides a plugin with the ID 61721 (CentOS 5 / 6 : firefox (CESA-2012:1210)), which helps to determine the existence of the flaw in a target environment. It is assigned to the family CentOS Local Security Checks. This vulnerability is caused by two onLocationChange events being fired out of the expected order, leading to the displayed certificate data to not be updated. This can be used for phishing attacks by allowing the user to input form or other data on a newer, attacking, site while the credentials of an older site appear on the addressbar.

Upgrading to version 15 eliminates this vulnerability. A possible mitigation has been published immediately after the disclosure of the vulnerability.

The vulnerability is also documented in the vulnerability database at Tenable (61721). Further details are available at bugzilla.mozilla.org. See 6036, 6035, 6039 and 6040 for similar entries.

Productinfo

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CPE 2.3info

CPE 2.2info

CVSSv4info

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CVSSv3info

VulDB Meta Base Score: 4.3
VulDB Meta Temp Score: 3.9

VulDB Base Score: 4.3
VulDB Temp Score: 3.9
VulDB Vector: 🔍
VulDB Reliability: 🔍

CVSSv2info

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VulDB Base Score: 🔍
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Exploitinginfo

Class: Use after free
CWE: CWE-416 / CWE-119
ATT&CK: Unknown

Local: No
Remote: Yes

Availability: 🔍
Access: Private
Status: Proof-of-Concept
Programming Language: 🔍

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Nessus ID: 61721
Nessus Name: CentOS 5 / 6 : firefox (CESA-2012:1210)
Nessus File: 🔍
Nessus Risk: 🔍
Nessus Family: 🔍

OpenVAS ID: 71829
OpenVAS Name: FreeBSD Ports: firefox
OpenVAS File: 🔍
OpenVAS Family: 🔍

Threat Intelligenceinfo

Interest: 🔍
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Countermeasuresinfo

Recommended: Upgrade
Status: 🔍

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Upgrade: Firefox 15

Timelineinfo

07/11/2012 🔍
08/28/2012 +48 days 🔍
08/28/2012 +0 days 🔍
08/28/2012 +0 days 🔍
08/28/2012 +0 days 🔍
08/29/2012 +1 days 🔍
08/29/2012 +0 days 🔍
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08/29/2012 +0 days 🔍
08/29/2012 +0 days 🔍
09/02/2012 +4 days 🔍
03/27/2021 +3128 days 🔍

Sourcesinfo

Vendor: mozilla.org
Product: mozilla.org

Advisory: MFSA 2012-69
Researcher: Mark Poticha
Status: Confirmed
Confirmation: 🔍
Coordinated: 🔍

CVE: CVE-2012-3976 (🔍)
OVAL: 🔍

SecurityTracker: 1027450 - Mozilla Firefox Multiple Bugs Let Remote Users Execute Arbitrary Code
Vulnerability Center: 35992 - Mozilla Firefox and SeaMonkey Allows to Display False SSL Certificate Information on the Address Bar, Medium
SecurityFocus: 55313 - Mozilla Firefox/SeaMonkey CVE-2012-3976 Address Bar Spoofing Vulnerability
Secunia: 50088 - Mozilla Firefox Multiple Vulnerabilities, Highly Critical
OSVDB: 85000

scip Labs: https://www.scip.ch/en/?labs.20161013
Misc.: 🔍
See also: 🔍

Entryinfo

Created: 09/02/2012 09:13
Updated: 03/27/2021 16:35
Changes: 09/02/2012 09:13 (83), 04/16/2017 11:03 (10), 03/27/2021 16:35 (3)
Complete: 🔍

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