Cyber Resilience

CVE-2023-50445

HighPublic PoC

Published: 28 December 2023

Published
28 December 2023
Modified
21 November 2024
KEV Added
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Patch
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CVSS Score v3.1 7.8 CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
EPSS Score 0.0312 87.1th percentile
Risk Priority 17 60% EPSS · 20% KEV · 20% CVSS

Summary

CVE-2023-50445 is a high-severity OS Command Injection (CWE-78) vulnerability in Gl-Inet Gl-Mt1300 Firmware. Its CVSS base score is 7.8 (High).

Operationally, exploitation aligns with the MITRE ATT&CK technique Unix Shell (T1059.004); ranked in the top 12.9% 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

Shell Injection vulnerability GL.iNet A1300 v4.4.6, AX1800 v4.4.6, AXT1800 v4.4.6, MT3000 v4.4.6, MT2500 v4.4.6, MT6000 v4.5.0, MT1300 v4.3.7, MT300N-V2 v4.3.7, AR750S v4.3.7, AR750 v4.3.7, AR300M v4.3.7, and B1300 v4.3.7., allows local attackers to execute arbitrary code via the get_system_log and…

more

get_crash_log functions of the logread module, as well as the upgrade_online function of the upgrade module.

CWE(s)
CWE-78CWE-77

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 →
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 →
Why these techniques?

Shell metacharacter injection in router API functions (logread and upgrade modules) enables local attackers to execute arbitrary Unix shell commands, aligning with Unix Shell execution and Network Device CLI abuse on the Linux-based router.

Affected Assets

gl-inet
gl-mt1300 firmware
4.3.7
gl-inet
gl-mt300n-v2 firmware
4.3.7
gl-inet
gl-ar750s firmware
4.3.7
gl-inet
gl-ar750 firmware
4.3.7
gl-inet
gl-ar300m firmware
4.3.7
gl-inet
gl-b1300 firmware
4.3.7
gl-inet
gl-mt6000 firmware
4.5.0
gl-inet
gl-a1300 firmware
4.4.6
gl-inet
gl-ax1800 firmware
4.4.6
gl-inet
gl-axt1800 firmware
4.4.6
+2 more product configuration(s) — see NVD for full list

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