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6.4	$0-$5k	0.00

A vulnerability was found in Mozilla Firefox up to 40 (Web Browser). It has been declared as critical. This vulnerability affects the function SavedStacks of the component Javascript. The manipulation with an unknown input leads to a privileges management vulnerability. The CWE definition for the vulnerability is CWE-269. The software does not properly assign, modify, track, or check privileges for an actor, creating an unintended sphere of control for that actor. As an impact it is known to affect confidentiality, integrity, and availability. CVE summarizes:

The SavedStacks class in the JavaScript implementation in Mozilla Firefox before 41.0, when the Debugger API is enabled, allows remote attackers to cause a denial of service (getSlotRef assertion failure and application exit) or possibly execute arbitrary code via a crafted web site.

The weakness was presented 09/24/2015 by Francisco Alonso (Felix) with NowSecure (Website). The advisory is shared for download at bugzilla.mozilla.org. This vulnerability was named CVE-2015-4507 since 06/10/2015. 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 T1068.

The vulnerability scanner Nessus provides a plugin with the ID 86079 (FreeBSD : mozilla -- multiple vulnerabilities (2d56c7f4-b354-428f-8f48-38150c607a05)), 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 168108 (OpenSuSE Security Update for MozillaFirefox (openSUSE-SU-2015:1658-1)).

Upgrading to version 41.0 eliminates this vulnerability.

The vulnerability is also documented in the databases at X-Force (106633) and Tenable (86079). See 78020, 78022, 78023 and 78024 for similar entries.

Productinfo

Type

• Web Browser

Vendor

• Mozilla

Name

• Firefox

License

• open-source

CPE 2.3info

• 🔍

CPE 2.2info

• 🔍

CVSSv3info

VulDB Meta Base Score: 7.3
VulDB Meta Temp Score: 6.4

VulDB Base Score: 7.3
VulDB Temp Score: 6.4
VulDB Vector: 🔍
VulDB Reliability: 🔍

CVSSv2info

AV	AC	Au	C	I	A
💳	💳	💳	💳	💳	💳
💳	💳	💳	💳	💳	💳
💳	💳	💳	💳	💳	💳

Vector	Complexity	Authentication	Confidentiality	Integrity	Availability
unlock	unlock	unlock	unlock	unlock	unlock
unlock	unlock	unlock	unlock	unlock	unlock
unlock	unlock	unlock	unlock	unlock	unlock

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

NVD Base Score: 🔍

Exploitinginfo

Class: Privileges management
CWE: CWE-269 / CWE-266
ATT&CK: T1068

Local: No
Remote: Yes

Availability: 🔍
Status: Unproven

EPSS Score: 🔍
EPSS Percentile: 🔍

Price Prediction: 🔍
Current Price Estimation: 🔍

0-Day	unlock	unlock	unlock	unlock
Today	unlock	unlock	unlock	unlock

Nessus ID: 86079
Nessus Name: FreeBSD : mozilla -- multiple vulnerabilities (2d56c7f4-b354-428f-8f48-38150c607a05)
Nessus File: 🔍
Nessus Risk: 🔍
Nessus Family: 🔍

OpenVAS ID: 803059
OpenVAS Name: Mozilla Firefox Multiple Vulnerabilities - Sep15 (Windows)
OpenVAS File: 🔍
OpenVAS Family: 🔍

Qualys ID: 🔍
Qualys Name: 🔍

Threat Intelligenceinfo

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

Countermeasuresinfo

Recommended: Upgrade
Status: 🔍

0-Day Time: 🔍

Upgrade: Firefox 41.0

Timelineinfo

06/10/2015 🔍
09/22/2015 +104 days 🔍
09/22/2015 +0 days 🔍
09/24/2015 +2 days 🔍
09/24/2015 +0 days 🔍
09/24/2015 +0 days 🔍
09/25/2015 +1 days 🔍
06/19/2022 +2458 days 🔍

Sourcesinfo

Vendor: mozilla.org
Product: mozilla.org

Advisory: USN-2743-1
Researcher: Francisco Alonso (Felix)
Organization: NowSecure
Status: Confirmed
Confirmation: 🔍

CVE: CVE-2015-4507 (🔍)
X-Force: 106633 - Mozilla Firefox SavedStacks code execution
SecurityTracker: 1033640
Vulnerability Center: 52927 - Mozilla Firefox before 41 Remote DoS when Using Debugger with SavedStacks in JavaScript, Medium
SecurityFocus: 76815 - Mozilla Firefox Multiple Security Vulnerabilities

See also: 🔍

Entryinfo

Created: 09/25/2015 05:57 PM
Updated: 06/19/2022 12:52 AM
Changes: 09/25/2015 05:57 PM (61), 01/03/2018 09:51 AM (17), 06/19/2022 12:41 AM (4), 06/19/2022 12:52 AM (1)
Complete: 🔍

Discussion

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