Mozilla Firefox 27.0 Javascript onbeforeunload denial of service

CVSS Meta Temp Score
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CTI Interest Score
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4.6$0-$5k0.00

Summaryinfo

A vulnerability labeled as problematic has been found in Mozilla Firefox 27.0. This affects the function onbeforeunload of the component Javascript Handler. Executing a manipulation can lead to denial of service. This vulnerability is tracked as CVE-2014-1500. The attack can be launched remotely. No exploit exists. The affected component should be upgraded.

Detailsinfo

A vulnerability was found in Mozilla Firefox 27.0 (Web Browser). It has been declared as problematic. This vulnerability affects the function onbeforeunload of the component Javascript Handler. The manipulation with an unknown input leads to a denial of service vulnerability. The CWE definition for the vulnerability is CWE-404. The product does not release or incorrectly releases a resource before it is made available for re-use. As an impact it is known to affect availability. CVE summarizes:

Mozilla Firefox before 28.0 and SeaMonkey before 2.25 allow remote attackers to cause a denial of service (resource consumption and application hang) via onbeforeunload events that trigger background JavaScript execution.

The weakness was disclosed 03/18/2014 by Tim Philipp Schäfers and Sebastian Neef with OUSPG as MFSA2014-20 as confirmed advisory (Website). The advisory is shared for download at mozilla.org. This vulnerability was named CVE-2014-1500 since 01/16/2014. The exploitation appears to be easy. The attack can be initiated remotely. No form of authentication is required for a successful exploitation. There are known technical details, but no exploit is available. The MITRE ATT&CK project declares the attack technique as T1499. The advisory points out:

(…) causing the browser to become unresponsive.

The vulnerability scanner Nessus provides a plugin with the ID 73111 (FreeBSD : mozilla -- multiple vulnerabilities (610de647-af8d-11e3-a25b-b4b52fce4ce8)), which helps to determine the existence of the flaw in a target environment. It is assigned to the family FreeBSD Local Security Checks. The commercial vulnerability scanner Qualys is able to test this issue with plugin 166883 (OpenSuSE Security Update for MozillaFirefox (openSUSE-SU-2014:0448-1)).

Upgrading to version 28 eliminates this vulnerability. A possible mitigation has been published immediately after the disclosure of the vulnerability. The advisory contains the following remark:

Fixed in: Firefox 28, Seamonkey 2.25

The vulnerability is also documented in the databases at X-Force (91861), Tenable (73111), SecurityFocus (BID 66278†), SecurityTracker (ID 1029928†) and Vulnerability Center (SBV-43684†). Additional details are provided at bugzilla.mozilla.org. The entries VDB-12646, VDB-12647, VDB-12648 and VDB-12649 are pretty similar. Once again VulDB remains the best source for vulnerability data.

Affected

  • Mozilla Firefox 27.0
  • Mozilla Seamonkey 2.24

Productinfo

Type

Vendor

Name

Version

License

Website

CPE 2.3info

CPE 2.2info

CVSSv4info

VulDB Vector: 🔍
VulDB Reliability: 🔍

CVSSv3info

VulDB Meta Base Score: 5.3
VulDB Meta Temp Score: 4.6

VulDB Base Score: 5.3
VulDB Temp Score: 4.6
VulDB Vector: 🔍
VulDB Reliability: 🔍

CVSSv2info

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

NVD Base Score: 🔍

Exploitinginfo

Class: Denial of service
CWE: CWE-404
CAPEC: 🔍
ATT&CK: 🔍

Physical: No
Local: No
Remote: Yes

Availability: 🔍
Status: Unproven

EPSS Score: 🔍
EPSS Percentile: 🔍

Price Prediction: 🔍
Current Price Estimation: 🔍

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Nessus ID: 73111
Nessus Name: FreeBSD : mozilla -- multiple vulnerabilities (610de647-af8d-11e3-a25b-b4b52fce4ce8)
Nessus File: 🔍
Nessus Risk: 🔍
Nessus Family: 🔍

OpenVAS ID: 803420
OpenVAS Name: Mozilla Firefox Multiple Vulnerabilities-01 Mar14 (Windows)
OpenVAS File: 🔍
OpenVAS Family: 🔍

Qualys ID: 🔍
Qualys Name: 🔍

Threat Intelligenceinfo

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

Countermeasuresinfo

Recommended: Upgrade
Status: 🔍

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

Upgrade: Firefox 28

Timelineinfo

01/16/2014 🔍
03/18/2014 +61 days 🔍
03/18/2014 +0 days 🔍
03/18/2014 +0 days 🔍
03/18/2014 +0 days 🔍
03/19/2014 +1 days 🔍
03/19/2014 +0 days 🔍
03/19/2014 +0 days 🔍
03/20/2014 +1 days 🔍
06/15/2021 +2644 days 🔍

Sourcesinfo

Vendor: mozilla.org
Product: mozilla.org

Advisory: MFSA2014-20
Researcher: Tim Philipp Schäfers, Sebastian Neef
Organization: OUSPG
Status: Confirmed
Confirmation: 🔍

CVE: CVE-2014-1500 (🔍)
GCVE (CVE): GCVE-0-2014-1500
GCVE (VulDB): GCVE-100-12652

OVAL: 🔍
IAVM: 🔍

X-Force: 91861 - Mozilla Firefox and SeaMonkey onbeforeunload event denial of service, Medium Risk
SecurityFocus: 66278 - RETIRED: Mozilla Firefox/Thunderbird/SeaMonkey MFSA 2014-15 through -28 Multiple Vulnerabilities
SecurityTracker: 1029928 - Mozilla Firefox Multiple Bugs Let Local Users Gain Elevated Privileges and Remote Users Execute Arbitrary Code, Deny Service, and Obtain Information
Vulnerability Center: 43684 - Mozilla Firefox and SeaMonkey Remote DoS via JavaScript \, Medium

Misc.: 🔍
See also: 🔍

Entryinfo

Created: 03/20/2014 10:51
Updated: 06/15/2021 19:28
Changes: 03/20/2014 10:51 (86), 01/31/2018 09:52 (8), 06/15/2021 19:28 (2)
Complete: 🔍
Cache ID: 216:F0B:103

Once again VulDB remains the best source for vulnerability data.

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