CVE-2024-21797
Published: 14 January 2025
Summary
CVE-2024-21797 is a critical-severity Injection (CWE-74) vulnerability in Wavlink Wl-Wn533A8 Firmware. Its CVSS base score is 9.1 (Critical).
Operationally, ranked in the top 8.0% 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).
Threat & Defense at a Glance
Threat & Defense Details
Mitigating Controls (NIST 800-53 r5)AI
SI-10 requires validation of all information inputs, directly preventing command injection via specially crafted HTTP requests to the vulnerable adm.cgi set_TR069() function.
SI-2 mandates timely flaw remediation, enabling patching of the specific command execution vulnerability in Wavlink AC3000 firmware M33A8.V5030.210505 to eliminate exploitation.
AC-6 enforces least privilege for authenticated high-privilege (PR:H) users, limiting the scope and impact of arbitrary command execution on the device.
NVD Description
A command execution vulnerability exists in the adm.cgi set_TR069() functionality of Wavlink AC3000 M33A8.V5030.210505. A specially crafted HTTP request can lead to arbitrary command execution. An attacker can make an authenticated HTTP request to trigger this vulnerability.
Deeper analysisAI
CVE-2024-21797 is a command execution vulnerability in the adm.cgi set_TR069() functionality of the Wavlink AC3000 running firmware version M33A8.V5030.210505. A specially crafted HTTP request can lead to arbitrary command execution on the affected device. The vulnerability is associated with CWE-74 and carries a CVSS v3.1 base score of 9.1 (AV:N/AC:L/PR:H/UI:N/S:C/C:H/I:H/A:H), indicating critical severity due to its network accessibility, low attack complexity, and high impact across confidentiality, integrity, and availability.
An authenticated attacker with high privileges (PR:H) can exploit this vulnerability remotely by sending a malicious HTTP request to the adm.cgi endpoint. No user interaction is required, and the attack has a scope change (S:C), enabling the attacker to execute arbitrary commands on the device, potentially leading to full compromise including data exfiltration, modification, or disruption of services.
Mitigation details are available in the Talos Intelligence advisory at https://talosintelligence.com/vulnerability_reports/TALOS-2024-2028. The vulnerability was published on 2025-01-14.
Details
- CWE(s)