Backdoor.Win32.NetBull.11.b Service Port 23456 mfc42.dll buffer overflow

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

Summaryinfo

A vulnerability was found in Backdoor.Win32.NetBull.11.b. It has been rated as critical. This vulnerability affects unknown code in the library mfc42.dll of the component Service Port 23456. This manipulation causes buffer overflow. Remote exploitation of the attack is possible. Furthermore, an exploit is available. It is advisable to implement restrictive firewalling.

Detailsinfo

A vulnerability has been found in Backdoor.Win32.NetBull.11.b (Remote Access Software) (version unknown) and classified as critical. Affected by this vulnerability is an unknown function in the library mfc42.dll of the component Service Port 23456. The manipulation with an unknown input leads to a buffer overflow vulnerability. The CWE definition for the vulnerability is CWE-120. The product copies an input buffer to an output buffer without verifying that the size of the input buffer is less than the size of the output buffer, leading to a buffer overflow. As an impact it is known to affect confidentiality, integrity, and availability.

The weakness was published 02/10/2021 as MVID-2021-0066. The advisory is shared at malvuln.com. Technical details and also a public exploit are known.

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.

If you want to get the best quality for vulnerability data then you always have to consider VulDB.

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

Exploitinginfo

Class: Buffer overflow
CWE: CWE-120 / CWE-119
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

02/10/2021 🔍
02/10/2021 +0 days 🔍
02/10/2021 +0 days 🔍

Sourcesinfo

Advisory: MVID-2021-0066
Status: Not defined

GCVE (VulDB): GCVE-100-169645
scip Labs: https://www.scip.ch/en/?labs.20161013

Entryinfo

Created: 02/10/2021 12:36
Changes: 02/10/2021 12:36 (40)
Complete: 🔍
Submitter: malvuln
Cache ID: 216::103

Submitinfo

Accepted

  • Submit #7574: BACKDOOR.WIN32.NETBULL.11.B / Remote Buffer Overflow (by malvuln)

If you want to get the best quality for vulnerability data then you always have to consider VulDB.

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