Cyber Resilience

CVE-2024-8809

HighRCE

Published: 22 November 2024

Published
22 November 2024
Modified
09 January 2025
KEV Added
Patch
CVSS Score v3.1 8.8 CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
EPSS Score 0.0609 91.0th percentile
Risk Priority 21 60% EPSS · 20% KEV · 20% CVSS

Summary

CVE-2024-8809 is a high-severity OS Command Injection (CWE-78) vulnerability in Cohesive Vns3. Its CVSS base score is 8.8 (High).

Operationally, ranked in the top 9.0% of CVEs by exploit likelihood; it is not currently listed in the CISA KEV catalog.

Deeper analysis

CVE-2024-8809 is a command injection vulnerability in Cohesive Networks VNS3 that permits remote code execution. The flaw resides in the product's web service, which listens on TCP port 8000 by default, and stems from insufficient validation of user-supplied input before it is passed to a system call. Successful exploitation grants code execution in the context of the root user. The issue is tracked as ZDI-CAN-24178 and carries a CVSS 3.1 base score of 8.8.

An authenticated remote attacker can supply a crafted string to the web interface and trigger arbitrary command execution. Because authentication is required and the attack can be performed over the network without user interaction, the vulnerability is reachable by any user account that can reach the management interface.

Vendor and Zero Day Initiative advisories direct users to Cohesive Networks' security response page for mitigation guidance and patch information. The current EPSS score of 0.0609 shows no material increase since disclosure.

EU & UK References

Vulnerability details

Cohesive Networks VNS3 Command Injection Remote Code Execution Vulnerability. This vulnerability allows remote attackers to execute arbitrary code on affected installations of Cohesive Networks VNS3. Authentication is required to exploit this vulnerability. The specific flaw exists within the web service,…

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which listens on TCP port 8000 by default. The issue results from the lack of proper validation of a user-supplied string before using it to execute a system call. An attacker can leverage this vulnerability to execute code in the context of root. Was ZDI-CAN-24178.

CWE(s)

Related Threats

No named actor attribution yet. ATT&CK technique mapping in progress for this CVE.

Affected Assets

cohesive
vns3
4.6.1 — 6.2.8 · 6.6.0 — 6.6.7

Mitigating Controls

Likely Mitigating Controls AI

Per-CVE control mapping for this CVE has not run yet; the list below is derived from the weakness types (CWEs) cited in the NVD entry.

addresses: CWE-78

Platform-independent apps typically execute inside a managed runtime or sandbox that restricts direct OS command execution, reducing the ability to exploit OS command injection.

addresses: CWE-78

Validates inputs to block special elements that would alter OS command execution.

References