Backdoor.Win32.Ncx.b Service Port 99 stack-based overflow

CVSS Meta Temp Score
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Current Exploit Price (≈)
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CTI Interest Score
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5.6$0-$5k0.00

Summaryinfo

A vulnerability described as critical has been identified in Backdoor.Win32.Ncx.b. Impacted is an unknown function of the component Service Port 99. The manipulation results in stack-based overflow. The attack may be launched remotely. Furthermore, there is an exploit available. Applying restrictive firewalling is recommended.

Detailsinfo

A vulnerability, which was classified as critical, was found in Backdoor.Win32.Ncx.b (Remote Access Software) (unknown version). Affected is an unknown code block of the component Service Port 99. The manipulation with an unknown input leads to a stack-based overflow vulnerability. CWE is classifying the issue as CWE-121. A stack-based buffer overflow condition is a condition where the buffer being overwritten is allocated on the stack (i.e., is a local variable or, rarely, a parameter to a function). This is going to have an impact on confidentiality, integrity, and availability.

The weakness was shared 11/05/2021 as MVID-2021-0388. 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.

It is possible to mitigate the weakness by firewalling .

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: 6.3
VulDB Meta Temp Score: 5.6

VulDB Base Score: 6.3
VulDB Temp Score: 5.6
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: Stack-based overflow
CWE: CWE-121 / 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

11/05/2021 🔍
11/05/2021 +0 days 🔍
11/05/2021 +0 days 🔍

Sourcesinfo

Advisory: MVID-2021-0388
Status: Not defined

GCVE (VulDB): GCVE-100-186114
scip Labs: https://www.scip.ch/en/?labs.20161013

Entryinfo

Created: 11/05/2021 11:46
Changes: 11/05/2021 11:46 (39)
Complete: 🔍
Submitter: malvuln
Cache ID: 216::103

Submitinfo

Accepted

  • Submit #23621: Backdoor.Win32.Ncx.b / Remote Stack Buffer Overflow (by malvuln)

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

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