CVE-2024-39760
Published: 14 January 2025
Summary
CVE-2024-39760 is a critical-severity Command Injection (CWE-77) vulnerability in Wavlink Wl-Wn533A8 Firmware. Its CVSS base score is 10.0 (Critical).
Operationally, exploitation aligns with the MITRE ATT&CK technique Exploit Public-Facing Application (T1190); ranked in the top 17.5% of CVEs by exploit likelihood; it is not currently listed in the CISA KEV catalog; a public proof-of-concept is referenced.
The strongest mitigations our analysis identified are NIST 800-53 SI-10 (Information Input Validation) and SI-2 (Flaw Remediation).
Deeper analysis
Multiple OS command injection vulnerabilities, classified under CWE-77, affect the login.cgi set_sys_init() functionality in the Wavlink AC3000 router running firmware version M33A8.V5030.210505. These flaws, tracked as CVE-2024-39760 and published on 2025-01-14, allow a specially crafted HTTP request to trigger arbitrary code execution. One specific instance involves the `restart_min_value` POST parameter, enabling attackers to inject malicious operating system commands.
The vulnerabilities carry a CVSS v3.1 base score of 10.0 (AV:N/AC:L/PR:N/UI:N/S:C/C:H/I:H/A:H), indicating critical severity with network accessibility, low complexity, no privileges or user interaction required, and scope change leading to high impacts on confidentiality, integrity, and availability. Unauthenticated remote attackers can exploit them by sending a malicious HTTP request to the affected endpoint, achieving arbitrary code execution on the device.
Mitigation details are available in the Cisco Talos Intelligence advisory TALOS-2024-2018, accessible at https://talosintelligence.com/vulnerability_reports/TALOS-2024-2018. Security practitioners should consult this report for recommended patches or workarounds specific to the Wavlink AC3000 device.
EU & UK References
- 🇪🇺 ENISA EUVD: EUVD-2024-38354
Vulnerability details
Multiple OS command injection vulnerabilities exist in the login.cgi set_sys_init() functionality of Wavlink AC3000 M33A8.V5030.210505. A specially crafted HTTP request can lead to arbitrary code execution. An attacker can make an unauthenticated HTTP request to trigger these vulnerabilities.A command injection…
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vulnerability exists within the `restart_min_value` POST parameter.
- CWE(s)
Related Threats
MITRE ATT&CK Enterprise TechniquesAI
Why these techniques?
OS command injection in unauthenticated web endpoint (login.cgi) enables remote code execution on public-facing router via crafted HTTP POST, directly mapping to T1190 and Unix shell interpreter abuse.
CVEs Like This One
Affected Assets
Mitigating Controls
Mitigating Controls (NIST 800-53 r5) AI
Directly and comprehensively prevents OS command injection vulnerabilities by validating information inputs such as the restart_min_value POST parameter.
Remediates the specific command injection flaws in login.cgi set_sys_init() through timely identification, reporting, and correction via firmware patching.
Enforces logical access controls to restrict unauthenticated HTTP requests to the vulnerable set_sys_init() functionality.