Backdoor.Win32.WinShell.30 Service Port 5277 buffer overflow

CVSS Meta Temp Score
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Current Exploit Price (≈)
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CTI Interest Score
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6.9$0-$5k0.00

Summaryinfo

A vulnerability categorized as critical has been discovered in Backdoor.Win32.WinShell.30. Affected by this vulnerability is an unknown functionality of the component Service Port 5277. The manipulation results in buffer overflow. The attack may be performed from remote. In addition, an exploit is available.

Detailsinfo

A vulnerability classified as critical has been found in Backdoor.Win32.WinShell.30 (Remote Access Software) (affected version unknown). Affected is an unknown functionality of the component Service Port 5277. The manipulation with an unknown input leads to a buffer overflow vulnerability. CWE is classifying the issue as 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. This is going to have an impact on confidentiality, integrity, and availability.

The weakness was presented 01/21/2021 as MVID-2021-0040. The advisory is available at malvuln.com. Technical details are unknown but a public exploit is available.

The exploit is shared for download at malvuln.com. It is declared as proof-of-concept.

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

If you want to get best quality of vulnerability data, you may have to visit 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: 7.3

VulDB Base Score: 7.3
VulDB Temp Score: 7.3
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: 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: no mitigation known
Status: 🔍

0-Day Time: 🔍

Timelineinfo

01/21/2021 🔍
01/21/2021 +0 days 🔍
01/21/2021 +0 days 🔍

Sourcesinfo

Advisory: MVID-2021-0040
Status: Not defined

GCVE (VulDB): GCVE-100-168498
scip Labs: https://www.scip.ch/en/?labs.20161013

Entryinfo

Created: 01/21/2021 07:53
Changes: 01/21/2021 07:53 (38)
Complete: 🔍
Submitter: malvuln
Cache ID: 216::103

Submitinfo

Accepted

  • Submit #6352: BACKDOOR.WIN32.WINSHELL.30 / Remote Stack Buffer Overflow / Missing Authentication (by malvuln)

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

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