CVE-2024-2810 in AC15
Summary
by MITRE • 03/22/2024
A vulnerability has been found in Tenda AC15 15.03.05.18/15.03.20_multi and classified as critical. Affected by this vulnerability is the function formWifiWpsOOB of the file /goform/WifiWpsOOB. The manipulation of the argument index leads to stack-based buffer overflow. The attack can be launched remotely. The exploit has been disclosed to the public and may be used. The identifier VDB-257665 was assigned to this vulnerability. NOTE: The vendor was contacted early about this disclosure but did not respond in any way.
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Analysis
by VulDB Data Team • 05/03/2024
The vulnerability identified as CVE-2024-2810 represents a critical stack-based buffer overflow flaw in Tenda AC15 wireless routers running firmware versions 15.03.05.18 and 15.03.20_multi. This vulnerability resides within the formWifiWpsOOB function of the /goform/WifiWpsOOB file, which is part of the web-based administrative interface that allows users to configure router settings through a web browser. The flaw specifically manifests when processing the index argument, where improper input validation allows attackers to manipulate the buffer size and trigger a stack overflow condition that can potentially lead to arbitrary code execution on the affected device.
The technical implementation of this vulnerability follows the characteristics of a stack-based buffer overflow as classified under CWE-121, where insufficient bounds checking allows an attacker to write data beyond the allocated buffer space on the stack. The attack vector is remote, meaning an attacker does not require physical access to the device or local network presence to exploit the vulnerability. The exploitation process involves sending specially crafted HTTP requests to the affected router's web interface, targeting the vulnerable formWifiWpsOOB endpoint with malicious input parameters that exceed the buffer's allocated memory space. This type of vulnerability aligns with ATT&CK technique T1210 which involves exploitation of remote services through buffer overflow attacks.
The operational impact of this vulnerability is severe as it allows remote code execution on the affected router, potentially enabling attackers to gain full administrative control over the device. Once compromised, the router can be used as a pivot point for further attacks within the local network, or attackers can use it to redirect traffic, steal credentials, or establish persistent access. The vulnerability's public disclosure through identifier VDB-257665 indicates that working exploits are available in the wild, making the affected devices immediately vulnerable to exploitation without requiring advanced technical skills. The lack of response from the vendor following early disclosure creates additional security concerns as users remain unaware of the risk and unable to obtain timely patches or mitigations.
Mitigation strategies for this vulnerability should include immediate firmware updates from Tenda if available, though the vendor's lack of response complicates this approach. Network administrators should implement network segmentation to isolate affected devices and monitor for suspicious traffic patterns that might indicate exploitation attempts. Access controls should be strengthened by disabling unnecessary web interfaces and implementing strong authentication mechanisms. Additionally, regular network scanning should be conducted to identify other potentially vulnerable devices within the network infrastructure. The vulnerability demonstrates the importance of maintaining up-to-date firmware and the risks associated with vendor inaction in security disclosure situations, as highlighted in industry best practices for vulnerability management and incident response protocols.