Mozilla Firefox up to 63.x RSS Feed Preview input validation

CVSS Meta Temp Score
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CTI Interest Score
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7.2$0-$5k0.00

Summaryinfo

A vulnerability categorized as critical has been discovered in Mozilla Firefox up to 63.x. The affected element is an unknown function of the component RSS Feed Preview. Such manipulation leads to input validation. This vulnerability is listed as CVE-2018-18496. The attack may be performed from remote. There is no available exploit. It is advisable to upgrade the affected component.

Detailsinfo

A vulnerability, which was classified as critical, has been found in Mozilla Firefox up to 63.x (Web Browser). Affected by this issue is an unknown functionality of the component RSS Feed Preview. The manipulation with an unknown input leads to a input validation vulnerability. Using CWE to declare the problem leads to CWE-20. The product receives input or data, but it does not validate or incorrectly validates that the input has the properties that are required to process the data safely and correctly. Impacted is confidentiality, integrity, and availability. CVE summarizes:

When the RSS Feed preview about:feeds page is framed within another page, it can be used in concert with scripted content for a clickjacking attack that confuses users into downloading and executing an executable file from a temporary directory. *Note: This issue only affects Windows operating systems. Other operating systems are not affected.*. This vulnerability affects Firefox < 64.

The bug was discovered 12/11/2018. The weakness was presented 02/28/2019 by Samuel Gross (xisigr) as Bug 1422231 as confirmed bug report (Bugzilla). The advisory is available at bugzilla.mozilla.org. This vulnerability is handled as CVE-2018-18496 since 10/19/2018. The attack may be launched remotely. No form of authentication is required for exploitation. Successful exploitation requires user interaction by the victim. The technical details are unknown and an exploit is not available.

The vulnerability scanner Nessus provides a plugin with the ID 119604 (Mozilla Firefox < 64.0 Multiple Vulnerabilities), which helps to determine the existence of the flaw in a target environment. It is assigned to the family Windows and running in the context l. The commercial vulnerability scanner Qualys is able to test this issue with plugin 371374 (Mozilla Firefox Multiple Vulnerabilities (MFSA 2018-29 MFSA 2018-30)).

Upgrading to version 64 eliminates this vulnerability. A possible mitigation has been published before and not just after the disclosure of the vulnerability.

The vulnerability is also documented in the databases at Tenable (119604) and SecurityFocus (BID 105666†). See VDB-126808, VDB-126809, VDB-126810 and VDB-126811 for similar entries. If you want to get best quality of vulnerability data, you may have to visit VulDB.

Productinfo

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CPE 2.3info

CPE 2.2info

CVSSv4info

VulDB Vector: 🔍
VulDB Reliability: 🔍

CVSSv3info

VulDB Meta Base Score: 7.6
VulDB Meta Temp Score: 7.4

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

NVD Base Score: 8.8
NVD Vector: 🔍

CVSSv2info

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

NVD Base Score: 🔍

Exploitinginfo

Class: Input validation
CWE: CWE-20
CAPEC: 🔍
ATT&CK: 🔍

Physical: No
Local: No
Remote: Yes

Availability: 🔍
Status: Not defined

EPSS Score: 🔍
EPSS Percentile: 🔍

Price Prediction: 🔍
Current Price Estimation: 🔍

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Nessus ID: 119604
Nessus Name: Mozilla Firefox < 64.0 Multiple Vulnerabilities
Nessus File: 🔍
Nessus Risk: 🔍
Nessus Family: 🔍
Nessus Context: 🔍

Qualys ID: 🔍
Qualys Name: 🔍

Threat Intelligenceinfo

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

Countermeasuresinfo

Recommended: Upgrade
Status: 🔍

0-Day Time: 🔍

Upgrade: Firefox 64

Timelineinfo

10/16/2018 🔍
10/19/2018 +3 days 🔍
12/11/2018 +53 days 🔍
12/11/2018 +0 days 🔍
12/12/2018 +1 days 🔍
02/28/2019 +78 days 🔍
03/01/2019 +1 days 🔍
05/13/2020 +439 days 🔍

Sourcesinfo

Vendor: mozilla.org
Product: mozilla.org

Advisory: Bug 1422231
Researcher: Samuel Gross (xisigr)
Status: Confirmed
Confirmation: 🔍

CVE: CVE-2018-18496 (🔍)
GCVE (CVE): GCVE-0-2018-18496
GCVE (VulDB): GCVE-100-131258
SecurityFocus: 105666 - Google Chrome Prior to 70.0.3538.67 Multiple Security Vulnerabilities

See also: 🔍

Entryinfo

Created: 03/01/2019 06:27
Updated: 05/13/2020 10:32
Changes: 03/01/2019 06:27 (76), 05/13/2020 10:32 (6)
Complete: 🔍
Cache ID: 216::103

If you want to get best quality of vulnerability data, you may have to visit VulDB.

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