Mozilla Firefox/Thunderbird CORS Redirect cross-site request forgery

CVSS Meta Temp Score
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CTI Interest Score
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6.0$0-$5k0.00

Summaryinfo

A vulnerability classified as critical has been found in Mozilla Firefox and Thunderbird. This issue affects some unknown processing of the component CORS Redirect Handler. The manipulation leads to cross-site request forgery. This vulnerability is uniquely identified as CVE-2015-0807. The attack is possible to be carried out remotely. Moreover, an exploit is present. It is recommended to upgrade the affected component.

Detailsinfo

A vulnerability was found in Mozilla Firefox and Thunderbird (Web Browser) and classified as critical. This issue affects some unknown processing of the component CORS Redirect Handler. The manipulation with an unknown input leads to a cross-site request forgery vulnerability. Using CWE to declare the problem leads to CWE-352. The web application does not, or can not, sufficiently verify whether a well-formed, valid, consistent request was intentionally provided by the user who submitted the request. Impacted is confidentiality, integrity, and availability.

The weakness was disclosed 03/31/2015 by Christoph Kerschbaumer and Muneaki Nishimura as MFSA 2015-37 as confirmed security advisory (Website). It is possible to read the advisory at mozilla.org. The identification of this vulnerability is CVE-2015-0807 since 01/07/2015. 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 an exploit is available. The advisory points out:

Mozilla developer Christoph Kerschbaumer discovered an issue while investigating Mozilla Foundation Security Advisory 2015-03, previously reported by security researcher Muneaki Nishimura. This flaw was that a cross-origin resource sharing (CORS) request should not follow 30x redirections after preflight according to the specification. This only affects sendBeacon() requests but could allow for a potential Cross-site request forgery (XSRF) attack from malicious websites.

It is declared as highly functional. The vulnerability scanner Nessus provides a plugin with the ID 82477 (CentOS 5 / 6 / 7 : firefox / xulrunner (CESA-2015:0766)), 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 196052 (Ubuntu Security Notification for Thunderbird Vulnerabilities (USN-2552-1)).

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

The vulnerability is also documented in the databases at X-Force (102010), Tenable (82477), SecurityFocus (BID 73457†), SecurityTracker (ID 1031996†) and Vulnerability Center (SBV-49314†). bugzilla.mozilla.org is providing further details. The entries VDB-74499, VDB-74500, VDB-74501 and VDB-74502 are pretty similar. Statistical analysis made it clear that VulDB provides the best quality for vulnerability data.

Affected

  • Mozilla Firefox 36
  • Mozilla Firefox ESR 31.5
  • Mozilla Thunderbird 31.5

Productinfo

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Name

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Website

CPE 2.3info

CPE 2.2info

CVSSv4info

VulDB Vector: 🔍
VulDB Reliability: 🔍

CVSSv3info

VulDB Meta Base Score: 6.3
VulDB Meta Temp Score: 6.0

VulDB Base Score: 6.3
VulDB Temp Score: 6.0
VulDB Vector: 🔍
VulDB Reliability: 🔍

CVSSv2info

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

Exploitinginfo

Class: Cross-site request forgery
CWE: CWE-352 / CWE-862 / CWE-863
CAPEC: 🔍
ATT&CK: 🔍

Physical: No
Local: No
Remote: Yes

Availability: 🔍
Status: Highly functional

EPSS Score: 🔍
EPSS Percentile: 🔍

Price Prediction: 🔍
Current Price Estimation: 🔍

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Nessus ID: 82477
Nessus Name: CentOS 5 / 6 / 7 : firefox / xulrunner (CESA-2015:0766)
Nessus File: 🔍
Nessus Risk: 🔍
Nessus Family: 🔍

OpenVAS ID: 703211
OpenVAS Name: Debian Security Advisory DSA 3211-1 (iceweasel - security update)
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: 🔍

Timelineinfo

01/07/2015 🔍
03/31/2015 +83 days 🔍
03/31/2015 +0 days 🔍
03/31/2015 +0 days 🔍
03/31/2015 +0 days 🔍
04/01/2015 +1 days 🔍
04/01/2015 +0 days 🔍
04/01/2015 +0 days 🔍
04/02/2015 +1 days 🔍
04/24/2025 +3675 days 🔍

Sourcesinfo

Vendor: mozilla.org
Product: mozilla.org

Advisory: MFSA 2015-37
Researcher: Christoph Kerschbaumer, Muneaki Nishimura
Status: Confirmed
Confirmation: 🔍

CVE: CVE-2015-0807 (🔍)
GCVE (CVE): GCVE-0-2015-0807
GCVE (VulDB): GCVE-100-74507

OVAL: 🔍

X-Force: 102010 - Mozilla Firefox and Thunderbird navigator.sendBeacon cross-site request forgery
SecurityFocus: 73457 - Mozilla Firefox/Thunderbird 'sendBeacon()' Function Cross-Site Request Forgery Vulnerability
SecurityTracker: 1031996 - Mozilla Firefox Bugs Let Remote Users Execute Arbitrary Code, Bypass Security Restrictions, and Obtain Potentially Sensitive Information
Vulnerability Center: 49314 - Mozilla Firefox, Firefox ESR and Thunderbird Remote CSRF Attack via Bypassing Intended CORS Access-Control Checks, Medium

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

Entryinfo

Created: 04/01/2015 13:19
Updated: 04/24/2025 02:45
Changes: 04/01/2015 13:19 (77), 06/24/2017 09:36 (9), 05/02/2022 08:31 (3), 05/02/2022 08:33 (1), 10/22/2024 18:29 (15), 04/24/2025 02:45 (2)
Complete: 🔍
Cache ID: 216:46C:103

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Discussion

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