CVE-2024-39784
Published: 14 January 2025
Summary
CVE-2024-39784 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 37.5% 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).
Threat & Defense at a Glance
Threat & Defense Details
Mitigating Controls (NIST 800-53 r5)AI
Directly validates and sanitizes HTTP POST parameters like disk_part and inputs to nas.cgi add_dir() to prevent command injection and arbitrary execution.
Remediates the specific command execution flaws in Wavlink AC3000 firmware version M33A8.V5030.210505 by identifying, patching, and verifying fixes.
Enforces secure configuration settings for the router's web interface and CGI scripts to minimize exposure of vulnerable nas.cgi functionality.
NVD Description
Multiple command execution vulnerabilities exist in the nas.cgi add_dir() 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 these vulnerabilities.A command injection vulnerability…
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exists in the disk_part POST parameter.
Deeper analysisAI
CVE-2024-39784 consists of multiple command execution vulnerabilities in the nas.cgi add_dir() functionality of the Wavlink AC3000 router running firmware version M33A8.V5030.210505. A specially crafted HTTP request can lead to arbitrary command execution. Additionally, a command injection vulnerability exists in the disk_part POST parameter. The issue 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).
These vulnerabilities can be exploited by an authenticated attacker with high privileges who sends a malicious HTTP request to the affected nas.cgi endpoint. Successful exploitation enables arbitrary command execution on the device, potentially granting full control over the router's operating system.
Mitigation guidance is available in the Talos Intelligence advisory at https://talosintelligence.com/vulnerability_reports/TALOS-2024-2058.
Details
- CWE(s)