Cyber Resilience

CVE-2024-8808

HighRCE

Published: 22 November 2024

Published
22 November 2024
Modified
20 December 2024
KEV Added
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Patch
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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-2024-8808 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-2024-8808 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 a user-supplied string 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-24177 and carries a CVSS 3.1 base score of 8.8 with CWE-78.

An authenticated remote attacker can supply a crafted string through the web interface to trigger arbitrary command execution on affected VNS3 installations. No user interaction is required beyond valid credentials, and the attack can be performed over the network with low complexity.

Vendor guidance and the corresponding Zero Day Initiative advisory are available at the Cohesive Networks security responses page and the ZDI-24-1232 advisory, respectively. The EPSS score remains flat at 0.0609 with no material increase observed after 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-24177.

CWE(s)
CWE-78

Related Threats

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

Affected Assets

cohesive
vns3
≤ 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.

SC-27 Platform-independent Applications
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.

SI-10 Information Input Validation
addresses: CWE-78

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

References