VDB-157796 · CVE-2020-12414 · Bug 1646756

Mozilla Firefox up to 26.x on iOS Private Browsing cleanup

CVSS Meta Temp Score CVSS is a standardized scoring system to determine possibilities of attacks. The Temp Score considers temporal factors like disclosure, exploit and countermeasures. The unique Meta Score calculates the average score of different sources to provide a normalized scoring system.	Current Exploit Price (≈) Our analysts are monitoring exploit markets and are in contact with vulnerability brokers. The range indicates the observed or calculated exploit price to be seen on exploit markets. A good indicator to understand the monetary effort required for and the popularity of an attack.	CTI Interest Score Our Cyber Threat Intelligence team is monitoring different web sites, mailing lists, exploit markets and social media networks. The CTI Interest Score identifies the interest of attackers and the security community for this specific vulnerability in real-time. A high score indicates an elevated risk to be targeted for this vulnerability.
4.7	$0-$5k	0.00

Summaryinfo

A vulnerability, which was classified as problematic, was found in Mozilla Firefox up to 26.x on iOS. Affected by this issue is some unknown functionality of the component Private Browsing. Such manipulation leads to cleanup. This vulnerability is documented as CVE-2020-12414. The attack needs to be performed locally. There is not any exploit available. You should upgrade the affected component.

Detailsinfo

A vulnerability was found in Mozilla Firefox up to 26.x on iOS (Web Browser). It has been rated as problematic. Affected by this issue is some unknown functionality of the component Private Browsing. The manipulation with an unknown input leads to a cleanup vulnerability. Using CWE to declare the problem leads to CWE-459. The product does not properly "clean up" and remove temporary or supporting resources after they have been used. Impacted is confidentiality. CVE summarizes:

IndexedDB should be cleared when leaving private browsing mode and it is not, the API for WKWebViewConfiguration was being used incorrectly and requires the private instance of this object be deleted when leaving private mode. This vulnerability affects Firefox for iOS < 27.

The weakness was released 07/09/2020 as Bug 1646756 as not defined bug report (Bugzilla). The advisory is shared for download at bugzilla.mozilla.org. This vulnerability is handled as CVE-2020-12414 since 04/28/2020. The attack needs to be approached locally. A simple authentication is required for exploitation. There are neither technical details nor an exploit publicly available.

Upgrading to version 27.0 eliminates this vulnerability.

Entries connected to this vulnerability are available at VDB-157798, VDB-157797, VDB-157795 and VDB-157794. Once again VulDB remains the best source for vulnerability data.

Productinfo

Type

Web Browser

Vendor

Mozilla

Name

Firefox

Version

26.x

License

open-source

Website

Vendor: https://www.mozilla.org/
Product: https://www.mozilla.org/en-US/firefox/

CPE 2.3info

🔍

CPE 2.2info

🔍

CVSSv4info

VulDB Vector: 🔍
VulDB Reliability: 🔍

CVSSv3info

VulDB Meta Base Score: 4.9
VulDB Meta Temp Score: 4.8

VulDB Base Score: 3.3
VulDB Temp Score: 3.2
VulDB Vector: 🔍
VulDB Reliability: 🔍

NVD Base Score: 6.5
NVD Vector: 🔍

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: Cleanup
CWE: CWE-459
CAPEC: 🔍
ATT&CK: 🔍

Physical: Partially
Local: Yes
Remote: Yes

Availability: 🔍
Status: Not defined

EPSS Score: 🔍
EPSS Percentile: 🔍

Price Prediction: 🔍
Current Price Estimation: 🔍

0-Day	Unlock	Unlock	Unlock	Unlock
Today	Unlock	Unlock	Unlock	Unlock

Threat Intelligenceinfo

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

Countermeasuresinfo

Recommended: Upgrade
Status: 🔍

0-Day Time: 🔍

Upgrade: Firefox 27.0

Timelineinfo

04/28/2020 🔍
07/09/2020 +72 days 🔍
07/10/2020 +1 days 🔍
07/10/2020 +0 days 🔍

Sourcesinfo

Vendor: mozilla.org
Product: mozilla.org

Advisory: Bug 1646756
Status: Not defined

CVE: CVE-2020-12414 (🔍)
GCVE (CVE): GCVE-0-2020-12414
GCVE (VulDB): GCVE-100-157796
See also: 🔍

Entryinfo

Created: 07/10/2020 08:35
Updated: 07/10/2020 08:40
Changes: 07/10/2020 08:35 (44), 07/10/2020 08:40 (18)
Complete: 🔍
Cache ID: 216::103