2009-3376 | Mozilla Firefox config (MFSA2009-62 / BID-36867)

CVSS Meta Temp Score Current Exploit Price (≈) CTI Interest Score
8.4 $0-$5k 0.03

A vulnerability was found in Mozilla Firefox 3.0.1 up to 3.0.1 (Web Browser). It has been rated as critical. Using CWE to declare the problem leads to CWE-16. Impacted is confidentiality, integrity, and availability. CVE summarizes:

Mozilla Firefox before 3.0.15 and 3.5.x before 3.5.4, and SeaMonkey before 2.0, does not properly handle a right-to-left override (aka RLO or U+202E) Unicode character in a download filename, which allows remote attackers to spoof file extensions via a crafted filename, as demonstrated by displaying a non-executable extension for an executable file.

The weakness was disclosed 10/29/2009 by Jesse Ruderman as MFSA2009-62 as not defined advisory (Website). The advisory is available at mozilla.org. This vulnerability is handled as CVE-2009-3376 since 09/24/2009. The attack may be launched remotely. No form of authentication is required for exploitation. Successful exploitation requires user interaction by the victim. The technical details are unknown and an exploit is not available.

The vulnerability scanner Nessus provides a plugin with the ID 42295 (CentOS 4 : firefox (CESA-2009:1530)), which helps to determine the existence of the flaw in a target environment. It is assigned to the family CentOS Local Security Checks. The commercial vulnerability scanner Qualys is able to test this issue with plugin 119087 (Red Hat Update for Xulrunner Firefox (RHSA-2009:1530)).

Upgrading to version 1.1 eliminates this vulnerability.

The vulnerability is also documented in the databases at Vulnerability Center (SBV-23961) and Tenable (42295). The entries 4052, 50808, 50648 and 50647 are pretty similar.




VulDB Meta Base Score: 8.8
VulDB Meta Temp Score: 8.4

VulDB Base Score: 8.8
VulDB Temp Score: 8.4
VulDB Vector: 🔍
VulDB Reliability: 🔍

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Vector Complexity Authentication Confidentiality Integrity Availability
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VulDB Base Score: 🔍
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VulDB Reliability: 🔍

NVD Base Score: 🔍

Class: Unknown
ATT&CK: Unknown

Local: No
Remote: Yes

Availability: 🔍
Status: Not defined

Price Prediction: 🔍
Current Price Estimation: 🔍

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Nessus ID: 42295
Nessus Name: CentOS 4 : firefox (CESA-2009:1530)
Nessus File: 🔍
Nessus Family: 🔍

OpenVAS ID: 66146
OpenVAS Name: Debian Security Advisory DSA 1922-1 (xulrunner)
OpenVAS File: 🔍
OpenVAS Family: 🔍

Qualys ID: 🔍
Qualys Name: 🔍

Threat Intelligenceinfoedit

Interest: 🔍
Active Actors: 🔍
Active APT Groups: 🔍Recommended: Upgrade
Status: 🔍

0-Day Time: 🔍

Upgrade: Firefox 1.1

09/24/2009 🔍
10/27/2009 +33 days 🔍
10/27/2009 +0 days 🔍
10/29/2009 +2 days 🔍
10/29/2009 +0 days 🔍
11/09/2009 +11 days 🔍
03/18/2015 +1955 days 🔍
08/24/2021 +2351 days 🔍Vendor: https://www.mozilla.org/
Product: https://www.mozilla.org/en-US/firefox/

Advisory: MFSA2009-62
Researcher: Jesse Ruderman
Status: Not defined
Confirmation: 🔍

CVE: CVE-2009-3376 (🔍)

Vulnerability Center: 23961 – Mozilla Firefox and SeaMonkey RTL Override File Extensions Spoofing Vulnerability, Critical
SecurityFocus: 36867 – Mozilla Firefox and SeaMonkey Download Filename Spoofing Vulnerability

See also: 🔍

Created: 03/18/2015 15:15
Updated: 08/24/2021 19:20
Changes: (4) source_cve_assigned advisory_confirm_url exploit_price_0day vulnerability_cvss2_nvd_basescore
Complete: 🔍

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