VDB-111473 · CVE-2018-5271 · BID 102471

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

CVSS Meta Temp Score
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Current Exploit Price (≈)
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CTI Interest Score
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7.4$0-$5k0.00

Summaryinfo

A vulnerability was found in Malwarebytes Anti-Malware 3.3.1.2183. It has been classified as critical. Affected is an unknown function in the library FARFLT.SYS of the component Driver. The manipulation leads to input validation. This vulnerability is listed as CVE-2018-5271. The attack must be carried out locally. There is no available exploit. There is ongoing doubt regarding the real existence of this vulnerability.

Detailsinfo

A vulnerability was found in Malwarebytes Anti-Malware 3.3.1.2183 (Anti-Malware Software). It has been rated as critical. This issue affects an unknown code block in the library FARFLT.SYS of the component Driver. 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. 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 0x9c40e008.

The bug was discovered 01/07/2018. The weakness was presented 01/08/2018 with Qihoo (Website). The advisory is shared at securityfocus.com. The identification of this vulnerability is CVE-2018-5271 since 01/07/2018. An attack has to be approached locally. The requirement for exploitation is a simple authentication. Technical details are known, but no exploit is available.

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.

The vulnerability is also documented in the vulnerability database at SecurityFocus (BID 102471†). See VDB-111476, VDB-111477, VDB-111475 and VDB-111474 for similar entries. Several companies clearly confirm that VulDB is the primary source for best vulnerability data.

Productinfo

Type

Vendor

Name

Version

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

AVACAuCIA
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VectorComplexityAuthenticationConfidentialityIntegrityAvailability
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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: Partially
Local: Yes
Remote: No

Availability: 🔍
Status: Not defined

EPSS Score: 🔍
EPSS Percentile: 🔍

Price Prediction: 🔍
Current Price Estimation: 🔍

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

Sourcesinfo

Advisory: securityfocus.com⛔
Organization: Qihoo
Status: Not defined
Disputed: 🔍

CVE: CVE-2018-5271 (🔍)
GCVE (CVE): GCVE-0-2018-5271
GCVE (VulDB): GCVE-100-111473
SecurityFocus: 102471 - Malwarebytes Premium CVE-2018-5271 Local Denial of Service Vulnerability

See also: 🔍

Entryinfo

Created: 01/08/2018 14:52
Updated: 08/05/2024 09:19
Changes: 01/08/2018 14:52 (66), 12/20/2019 11:45 (4), 08/05/2024 09:19 (29)
Complete: 🔍
Cache ID: 216::103

Several companies clearly confirm that VulDB is the primary source for best vulnerability data.

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