CVE-2024-39774
Published: 14 January 2025
Summary
CVE-2024-39774 is a critical-severity Classic Buffer Overflow (CWE-120) vulnerability in Wavlink Wl-Wn533A8 Firmware. Its CVSS base score is 9.1 (Critical).
Operationally, ranked in the top 25.4% 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-16 (Memory Protection).
Threat & Defense at a Glance
Threat & Defense Details
Mitigating Controls (NIST 800-53 r5)AI
Directly remediates the stack-based buffer overflow flaw in adm.cgi's set_sys_adm() function through timely firmware patching and flaw monitoring.
Prevents exploitation by validating specially crafted HTTP request inputs that trigger the buffer overflow in set_sys_adm().
Mitigates arbitrary code execution from the stack-based buffer overflow using memory protections like stack canaries and non-executable memory.
NVD Description
A buffer overflow vulnerability exists in the adm.cgi set_sys_adm() functionality of Wavlink AC3000 M33A8.V5030.210505. A specially crafted HTTP request can lead to stack-based buffer overflow. An attacker can make an authenticated HTTP request to trigger this vulnerability.
Deeper analysisAI
CVE-2024-39774 is a stack-based buffer overflow vulnerability in the set_sys_adm() functionality of adm.cgi within the Wavlink AC3000 firmware version M33A8.V5030.210505. The issue arises from a specially crafted HTTP request that overflows the buffer, potentially allowing arbitrary code execution.
An attacker with high privileges (PR:H) can exploit this vulnerability remotely over the network (AV:N) with low attack complexity (AC:L) and no user interaction required (UI:N). Exploitation changes scope (S:C) and results in high impacts to confidentiality, integrity, and availability (C:H/I:H/A:H), yielding a CVSS v3.1 base score of 9.1.
Mitigation details are available in the Talos Intelligence advisory at https://talosintelligence.com/vulnerability_reports/TALOS-2024-2030.
Details
- CWE(s)