Backdoor.Win32.Mhtserv.b Service Port 1043 improper authentication

CVSS Meta Temp Score
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Current Exploit Price (≈)
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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.
6.7$0-$5k0.00

Summaryinfo

A vulnerability categorized as critical has been discovered in Backdoor.Win32.Mhtserv.b. Affected by this issue is some unknown functionality of the component Service Port 1043. Executing a manipulation can lead to improper authentication. The attack can be launched remotely. Moreover, an exploit is present. The application of restrictive firewalling is recommended.

Detailsinfo

A vulnerability has been found in Backdoor.Win32.Mhtserv.b (Remote Access Software) (affected version unknown) and classified as critical. This vulnerability affects an unknown functionality of the component Service Port 1043. The manipulation with an unknown input leads to a improper authentication vulnerability. The CWE definition for the vulnerability is CWE-287. When an actor claims to have a given identity, the product does not prove or insufficiently proves that the claim is correct. As an impact it is known to affect confidentiality, integrity, and availability.

The weakness was disclosed 01/29/2021 as MVID-2021-0059. The advisory is available at malvuln.com. Technical details are unknown but a public exploit is available.

It is possible to download the exploit at malvuln.com. It is declared as proof-of-concept.

Proper firewalling of is able to address this issue.

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Productinfo

Type

Name

CPE 2.3info

CPE 2.2info

CVSSv4info

VulDB Vector: 🔍
VulDB Reliability: 🔍

CVSSv3info

VulDB Meta Base Score: 7.3
VulDB Meta Temp Score: 6.7

VulDB Base Score: 7.3
VulDB Temp Score: 6.7
VulDB Vector: 🔍
VulDB Reliability: 🔍

CVSSv2info

AVACAuCIA
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VectorComplexityAuthenticationConfidentialityIntegrityAvailability
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VulDB Base Score: 🔍
VulDB Temp Score: 🔍
VulDB Reliability: 🔍

Exploitinginfo

Class: Improper authentication
CWE: CWE-287
CAPEC: 🔍
ATT&CK: 🔍

Physical: No
Local: No
Remote: Yes

Availability: 🔍
Access: Public
Status: Proof-of-Concept
Download: 🔍
Price Prediction: 🔍
Current Price Estimation: 🔍

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Threat Intelligenceinfo

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

Countermeasuresinfo

Recommended: Firewall
Status: 🔍

0-Day Time: 🔍

Timelineinfo

01/29/2021 🔍
01/29/2021 +0 days 🔍
01/29/2021 +0 days 🔍

Sourcesinfo

Advisory: MVID-2021-0059
Status: Not defined

GCVE (VulDB): GCVE-100-168862
scip Labs: https://www.scip.ch/en/?labs.20161013

Entryinfo

Created: 01/29/2021 08:08
Changes: 01/29/2021 08:08 (39)
Complete: 🔍
Submitter: malvuln
Cache ID: 216::103

Submitinfo

Accepted

  • Submit #6913: BACKDOOR.WIN32.MHTSERV.B / Missing Authentication (by malvuln)

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