Mozilla Firefox 1.5.0.8/2.0 javascript URI src cross site scripting

CVSS Meta Temp Score
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CTI Interest Score
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5.7$0-$5k0.00

Summaryinfo

A vulnerability has been found in Mozilla Firefox 1.5.0.8/2.0 and classified as critical. This vulnerability affects unknown code of the component javascript URI Handler. Performing a manipulation of the argument src results in cross site scripting. This vulnerability is known as CVE-2006-6503. Remote exploitation of the attack is possible. No exploit is available. The affected component should be upgraded.

Detailsinfo

A vulnerability, which was classified as critical, was found in Mozilla Firefox 1.5.0.8/2.0 (Web Browser). This affects an unknown part of the component javascript URI Handler. The manipulation of the argument src with an unknown input leads to a cross site scripting vulnerability. CWE is classifying the issue as CWE-80. The product receives input from an upstream component, but it does not neutralize or incorrectly neutralizes special characters such as "<", ">", and "&" that could be interpreted as web-scripting elements when they are sent to a downstream component that processes web pages. This is going to have an impact on confidentiality, integrity, and availability. The summary by CVE is:

Mozilla Firefox 2.x before 2.0.0.1, 1.5.x before 1.5.0.9, Thunderbird before 1.5.0.9, and SeaMonkey before 1.0.7 allows remote attackers to bypass cross-site scripting (XSS) protection by changing the src attribute of an IMG element to a javascript: URI.

The weakness was published 12/19/2006 by Vladimir Vukicevic (moz_bug_r_a4) as MFSA2006-72 as confirmed advisory (Website). It is possible to read the advisory at mozilla.org. This vulnerability is uniquely identified as CVE-2006-6503 since 12/13/2006. It is possible to initiate the attack remotely. No form of authentication is needed for exploitation. It demands that the victim is doing some kind of user interaction. Technical details of the vulnerability are known, but there is no available exploit. The attack technique deployed by this issue is T1059.007 according to MITRE ATT&CK.

It is declared as proof-of-concept. The vulnerability scanner Nessus provides a plugin with the ID 23942 (CentOS 4 : Firefox (CESA-2006:0758)), 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 156235 (Oracle Enterprise Linux Update for Firefox (ELSA-2006:0758)).

Upgrading eliminates this vulnerability. Applying a patch is able to eliminate this problem. The bugfix is ready for download at mozilla.org. The best possible mitigation is suggested to be upgrading to the latest version. Furthermore it is possible to detect and prevent this kind of attack with TippingPoint and the filter 9089.

The vulnerability is also documented in the databases at X-Force (30990), Tenable (23942), SecurityFocus (BID 21668†), OSVDB (31342†) and Secunia (SA23282†). Similar entries are available at VDB-2774, VDB-2770, VDB-2771 and VDB-2777. Be aware that VulDB is the high quality source for vulnerability data.

Productinfo

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CPE 2.3info

CPE 2.2info

CVSSv4info

VulDB Vector: 🔍
VulDB Reliability: 🔍

CVSSv3info

VulDB Meta Base Score: 6.3
VulDB Meta Temp Score: 5.7

VulDB Base Score: 6.3
VulDB Temp Score: 5.7
VulDB Vector: 🔍
VulDB Reliability: 🔍

CVSSv2info

AVACAuCIA
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VectorComplexityAuthenticationConfidentialityIntegrityAvailability
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VulDB Base Score: 🔍
VulDB Temp Score: 🔍
VulDB Reliability: 🔍

NVD Base Score: 🔍

Exploitinginfo

Class: Cross site scripting
CWE: CWE-80 / CWE-74 / CWE-707
CAPEC: 🔍
ATT&CK: 🔍

Physical: No
Local: No
Remote: Yes

Availability: 🔍
Status: Proof-of-Concept

EPSS Score: 🔍
EPSS Percentile: 🔍

Price Prediction: 🔍
Current Price Estimation: 🔍

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Nessus ID: 23942
Nessus Name: CentOS 4 : Firefox (CESA-2006:0758)
Nessus File: 🔍
Nessus Risk: 🔍
Nessus Family: 🔍

OpenVAS ID: 57829
OpenVAS Name: Debian Security Advisory DSA 1253-1 (mozilla-firefox)
OpenVAS File: 🔍
OpenVAS Family: 🔍

Qualys ID: 🔍
Qualys Name: 🔍

Threat Intelligenceinfo

Interest: 🔍
Active Actors: 🔍
Active APT Groups: 🔍

Countermeasuresinfo

Recommended: Upgrade
Status: 🔍

0-Day Time: 🔍

Patch: mozilla.org
TippingPoint: 🔍

Timelineinfo

12/13/2006 🔍
12/19/2006 +6 days 🔍
12/19/2006 +0 days 🔍
12/19/2006 +0 days 🔍
12/19/2006 +0 days 🔍
12/19/2006 +0 days 🔍
12/20/2006 +0 days 🔍
12/20/2006 +0 days 🔍
12/21/2006 +1 days 🔍
01/18/2025 +6603 days 🔍

Sourcesinfo

Vendor: mozilla.org
Product: mozilla.org

Advisory: MFSA2006-72
Researcher: Vladimir Vukicevic (moz_bug_r_a4)
Status: Confirmed
Confirmation: 🔍

CVE: CVE-2006-6503 (🔍)
GCVE (CVE): GCVE-0-2006-6503
GCVE (VulDB): GCVE-100-2775

OVAL: 🔍

CERT: 🔍
X-Force: 30990
SecurityFocus: 21668 - Mozilla Firefox/SeaMonkey/Thunderbird Multiple Remote Vulnerabilities
Secunia: 23282 - Mozilla Firefox Multiple Vulnerabilities, Highly Critical
OSVDB: 31342 - Mozilla Multiple Products img.src javascript: URI XSS
SecurityTracker: 1017416 - Mozilla Firefox IMG SRC Tag Can Be Modified to Bypass Cross-Site Scripting Protections
Vulnerability Center: 13428 - Mozilla Web-Browsers img.src XSS Vulnerability, Medium
Vupen: ADV-2006-5068

See also: 🔍

Entryinfo

Created: 12/21/2006 10:15
Updated: 01/18/2025 19:08
Changes: 12/21/2006 10:15 (89), 01/31/2018 09:52 (10), 03/13/2021 18:07 (2), 01/18/2025 19:08 (15)
Complete: 🔍
Cache ID: 216::103

Be aware that VulDB is the high quality source for vulnerability data.

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