Mozilla Firefox up to 1.5.0.6 Javascript Regex access control

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

Summaryinfo

A vulnerability identified as critical has been detected in Mozilla Firefox. This affects an unknown part of the component Javascript Regex Handler. The manipulation leads to access control. This vulnerability is listed as CVE-2006-4253. The attack may be initiated remotely. In addition, an exploit is available. You should upgrade the affected component.

Detailsinfo

A vulnerability was found in Mozilla Firefox (Web Browser) and classified as critical. This issue affects some unknown functionality of the component Javascript Regex Handler. The manipulation with an unknown input leads to a access control vulnerability. Using CWE to declare the problem leads to CWE-264. Impacted is confidentiality, integrity, and availability. The summary by CVE is:

Concurrency vulnerability in Mozilla Firefox 1.5.0.6 and earlier allows remote attackers to cause a denial of service (crash) and possibly execute arbitrary code via multiple Javascript timed events that load a deeply nested XML file, followed by redirecting the browser to another page, which leads to a concurrency failure that causes structures to be freed incorrectly, as demonstrated by (1) ffoxdie and (2) ffoxdie3. NOTE: it has been reported that Netscape 8.1 and K-Meleon 1.0.1 are also affected by ffoxdie. Mozilla confirmed to CVE that ffoxdie and ffoxdie3 trigger the same underlying vulnerability. NOTE: it was later reported that Firefox 2.0 RC2 and 1.5.0.7 are also affected.

The weakness was presented 09/15/2006 by Priit Laes, CanadianGuy, Girts Folkmanis and Catal as MFSA2006-57 as confirmed advisory (Website). It is possible to read the advisory at mozilla.org. The identification of this vulnerability is CVE-2006-4253 since 08/21/2006. The attack may be initiated remotely. No form of authentication is needed for a successful exploitation. It demands that the victim is doing some kind of user interaction. Technical details are unknown but a public exploit is available. The attack technique deployed by this issue is T1068 according to MITRE ATT&CK.

After even before and not, there has been an exploit disclosed. The exploit is available at lcamtuf.coredump.cx. It is declared as proof-of-concept. The vulnerability was handled as a non-public zero-day exploit for at least 3 days. During that time the estimated underground price was around $25k-$100k. The vulnerability scanner Nessus provides a plugin with the ID 22470 (GLSA-200609-19 : Mozilla Firefox: Multiple vulnerabilities), which helps to determine the existence of the flaw in a target environment. It is assigned to the family Gentoo Local Security Checks and running in the context l. The commercial vulnerability scanner Qualys is able to test this issue with plugin 156230 (Oracle Enterprise Linux Update for Firefox (ELSA-2006:0733,ELSA-2006:0675,ELSA-2006:0610)).

Upgrading eliminates this vulnerability. Applying a patch is able to eliminate this problem. The bugfix is ready for download at mozilla.com. The best possible mitigation is suggested to be upgrading to the latest version. A possible mitigation has been published immediately after the disclosure of the vulnerability.

The vulnerability is also documented in the databases at Exploit-DB (28380), Tenable (22470), SecurityFocus (BID 19534†), OSVDB (27975†) and Secunia (SA24711†). See VDB-2544, VDB-2547, VDB-2548 and VDB-2545 for similar entries. 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: 🔍

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Exploitinginfo

Class: Access control
CWE: CWE-264
CAPEC: 🔍
ATT&CK: 🔍

Physical: No
Local: No
Remote: Yes

Availability: 🔍
Access: Public
Status: Proof-of-Concept
Download: 🔍

EPSS Score: 🔍
EPSS Percentile: 🔍

Price Prediction: 🔍
Current Price Estimation: 🔍

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Nessus ID: 22470
Nessus Name: GLSA-200609-19 : Mozilla Firefox: Multiple vulnerabilities
Nessus File: 🔍
Nessus Risk: 🔍
Nessus Family: 🔍
Nessus Context: 🔍
Nessus Port: 🔍

OpenVAS ID: 57373
OpenVAS Name: FreeBSD Ports: firefox
OpenVAS File: 🔍
OpenVAS Family: 🔍

Qualys ID: 🔍
Qualys Name: 🔍

Exploit-DB: 🔍

Threat Intelligenceinfo

Interest: 🔍
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Active APT Groups: 🔍

Countermeasuresinfo

Recommended: Upgrade
Status: 🔍

Reaction Time: 🔍
0-Day Time: 🔍
Exposure Time: 🔍

Patch: mozilla.com

Timelineinfo

08/15/2006 🔍
08/15/2006 +0 days 🔍
08/17/2006 +2 days 🔍
08/21/2006 +3 days 🔍
08/21/2006 +0 days 🔍
09/15/2006 +25 days 🔍
09/15/2006 +0 days 🔍
09/15/2006 +0 days 🔍
09/18/2006 +3 days 🔍
09/29/2006 +11 days 🔍
04/03/2007 +186 days 🔍
01/24/2025 +6506 days 🔍

Sourcesinfo

Vendor: mozilla.org
Product: mozilla.org

Advisory: MFSA2006-57
Researcher: Priit Laes, CanadianGuy, Girts Folkmanis, Catal
Status: Confirmed
Confirmation: 🔍

CVE: CVE-2006-4253 (🔍)
GCVE (CVE): GCVE-0-2006-4253
GCVE (VulDB): GCVE-100-2543

OVAL: 🔍

SecurityFocus: 19534 - Mozilla Firefox XML Handler Race Condition Memory Corruption Vulnerability
Secunia: 24711 - Netscape Multiple Vulnerabilities, Highly Critical
OSVDB: 27975 - Mozilla Multiple Products Javascript Handler Race Condition Memory Corruption
SecurityTracker: 1016848 - Mozilla Thunderbird Javascript Bugs Let Remote Users Execute Arbitrary Code
Vupen: ADV-2007-1198

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

Entryinfo

Created: 09/18/2006 11:43
Updated: 01/24/2025 13:15
Changes: 09/18/2006 11:43 (90), 01/31/2018 09:53 (8), 03/13/2021 13:15 (3), 01/24/2025 13:15 (15)
Complete: 🔍
Cache ID: 216:F9C:103

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

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