VDB-111475 · CVE-2018-5273 · OpenVAS 63403

Malwarebytes Anti-Malware 3.3.1.2183 Driver FARFLT.SYS input validation ⚔ [Disputed]

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.
7.4	$0-$5k	0.00

Summaryinfo

A vulnerability was found in Malwarebytes Anti-Malware 3.3.1.2183. It has been rated as critical. Affected by this issue is some unknown functionality in the library FARFLT.SYS of the component Driver. This manipulation causes input validation. This vulnerability is registered as CVE-2018-5273. The attack needs to be launched locally. No exploit is available. It is still unclear if this vulnerability genuinely exists.

Detailsinfo

A vulnerability classified as critical was found in Malwarebytes Anti-Malware 3.3.1.2183 (Anti-Malware Software). Affected by this vulnerability is an unknown function in the library FARFLT.SYS of the component Driver. The manipulation with an unknown input leads to a input validation vulnerability. The CWE definition for the vulnerability is 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. As an impact it is known to affect confidentiality, integrity, and availability. The summary by CVE is:

In Malwarebytes Premium 3.3.1.2183, the driver file (FARFLT.SYS) allows local users to cause a denial of service (BSOD) or possibly have unspecified other impact because of not validating input values from IOCtl 0x9c40e014.

The bug was discovered 01/07/2018. The weakness was published 01/08/2018 (Website). It is possible to read the advisory at github.com. This vulnerability is known as CVE-2018-5273 since 01/07/2018. Attacking locally is a requirement. The successful exploitation requires a single authentication. Technical details of the vulnerability are known, but there is no available exploit.

The vulnerability was handled as a non-public zero-day exploit for at least 1 days. During that time the estimated underground price was around $0-$5k. The real existence of this vulnerability is still doubted at the moment.

There is no information about possible countermeasures known. It may be suggested to replace the affected object with an alternative product.

Similar entries are available at VDB-111478, VDB-111479, VDB-111476 and VDB-111477. Statistical analysis made it clear that VulDB provides the best quality for vulnerability data.

Productinfo

Type

Anti-Malware Software

Vendor

Malwarebytes

Name

Anti-Malware

Version

3.3.1.2183

CPE 2.3info

CPE 2.2info

CVSSv4info

VulDB Vector: 🔍
VulDB Reliability: 🔍

CVSSv3info

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

VulDB Base Score: 6.6
VulDB Temp Score: 6.6
VulDB Vector: 🔍
VulDB Reliability: 🔍

NVD Base Score: 7.8
NVD Vector: 🔍

CNA Base Score: 7.8
CNA Vector: 🔍

CVSSv2info

AV	AC	Au	C	I	A
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💳	💳	💳	💳	💳	💳
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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: Input validation
CWE: CWE-20
CAPEC: 🔍
ATT&CK: 🔍

Physical: Partially
Local: Yes
Remote: No

Availability: 🔍
Status: Not defined

EPSS Score: 🔍
EPSS Percentile: 🔍

Price Prediction: 🔍
Current Price Estimation: 🔍

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

OpenVAS ID: 63403
OpenVAS Name: Malwarebytes 3.3.1.2183 Multiple DoS Vulnerabilities
OpenVAS File: 🔍
OpenVAS Family: 🔍

Threat Intelligenceinfo

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

Countermeasuresinfo

Recommended: no mitigation known
Status: 🔍

0-Day Time: 🔍

Timelineinfo

01/07/2018 🔍
01/07/2018 +0 days 🔍
01/08/2018 +1 days 🔍
01/08/2018 +0 days 🔍
01/08/2018 +0 days 🔍
08/05/2024 +2401 days 🔍

Sourcesinfo

Advisory: github.com
Status: Not defined
Disputed: 🔍

CVE: CVE-2018-5273 (🔍)
GCVE (CVE): GCVE-0-2018-5273
GCVE (VulDB): GCVE-100-111475
See also: 🔍

Entryinfo

Created: 01/08/2018 14:52
Updated: 08/05/2024 09:19
Changes: 01/08/2018 14:52 (64), 12/20/2019 11:56 (1), 08/05/2024 09:19 (29)
Complete: 🔍
Cache ID: 216::103

Statistical analysis made it clear that VulDB provides the best quality for vulnerability data.