Cyber Resilience

CVE-2024-7158

MediumPublic PoC

Published: 28 July 2024

Published
28 July 2024
Modified
21 November 2024
KEV Added
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Patch
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CVSS Score v4 5.3 CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:L/VI:L/VA:L/SC:N/SI:N/SA:N/E:X/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:X
EPSS Score 0.0199 84.0th percentile
Risk Priority 12 60% EPSS · 20% KEV · 20% CVSS

Summary

CVE-2024-7158 is a medium-severity Command Injection (CWE-77) vulnerability in Totolink A3100R Firmware. Its CVSS base score is 5.3 (Medium).

Operationally, exploitation aligns with the MITRE ATT&CK technique Network Device CLI (T1059.008); ranked in the top 16.0% 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 was found in TOTOLINK A3100R 4.1.2cu.5050_B20200504. It has been declared as critical. This vulnerability affects the function setTelnetCfg of the file /cgi-bin/cstecgi.cgi of the component HTTP POST Request Handler. The manipulation of the argument telnet_enabled leads to command…

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injection. The attack can be initiated remotely. The exploit has been disclosed to the public and may be used. The identifier of this vulnerability is VDB-272572. NOTE: The vendor was contacted early about this disclosure but did not respond in any way.

CWE(s)
CWE-77

Related Threats

MITRE ATT&CK Enterprise TechniquesAI

T1059.008 Network Device CLI Execution
Adversaries may abuse scripting or built-in command line interpreters (CLI) on network devices to execute malicious command and payloads.
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?

The vulnerability is a remote command injection in the router's web CGI interface (/cgi-bin/cstecgi.cgi setTelnetCfg), enabling exploitation of a public-facing application (T1190), indirect command execution via HTTP POST (T1202), and abuse of network device CLI for command execution (T1059.008).

Affected Assets

totolink
a3100r firmware
4.1.2cu.5050_b20200504

Mitigating Controls

No mitigating controls mapped yet. The per-CVE control annotator has not reached this CVE.

References