Cyber Resilience

CVE-2024-2854

MediumPublic PoC

Published: 24 March 2024

Published
24 March 2024
Modified
21 November 2024
KEV Added
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Patch
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CVSS Score v3.1 6.3 CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:L/I:L/A:L
EPSS Score 0.0153 81.7th percentile
Risk Priority 14 60% EPSS · 20% KEV · 20% CVSS

Summary

CVE-2024-2854 is a medium-severity OS Command Injection (CWE-78) vulnerability in Tenda Ac18 Firmware. Its CVSS base score is 6.3 (Medium).

Operationally, exploitation aligns with the MITRE ATT&CK technique Unix Shell (T1059.004); ranked in the top 18.3% of CVEs by exploit likelihood; it is not currently listed in the CISA KEV catalog; a public proof-of-concept is referenced.

EU & UK References

Vulnerability details

A vulnerability classified as critical has been found in Tenda AC18 15.03.05.05. Affected is the function formSetSambaConf of the file /goform/setsambacfg. The manipulation of the argument usbName leads to os command injection. It is possible to launch the attack remotely.…

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The exploit has been disclosed to the public and may be used. VDB-257778 is the identifier assigned to this vulnerability. NOTE: The vendor was contacted early about this disclosure but did not respond in any way.

CWE(s)
CWE-78

Related Threats

MITRE ATT&CK Enterprise TechniquesAI

T1059.004 Unix Shell Execution
Adversaries may abuse Unix shell commands and scripts for execution.
attack.mitre.org →
T1190 Exploit Public-Facing Application Initial Access
Adversaries may attempt to exploit a weakness in an Internet-facing host or system to initially access a network.
attack.mitre.org →
T1202 Indirect Command Execution Stealth
Adversaries may abuse utilities that allow for command execution to bypass security restrictions that limit the use of command-line interpreters.
attack.mitre.org →
Why these techniques?

Remote OS command injection (CWE-78) in /goform/setsambacfg via usbName parameter enables exploitation of the public-facing web application (T1190) for Unix shell command execution (T1059.004); VulDB maps to indirect command execution (T1202).

Affected Assets

tenda
ac18 firmware
15.03.05.05

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