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A stack overflow vulnerability exists in Tenda AC8V4.0-V16.03.34.06 due to improper handling of the timeZone parameter in the sub_44db3c function. An attacker can exploit this by supplying a specially crafted value to the timeZone parameter, leading to a stack-based buffer overflow.
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1 valid exploit after Mallory filtered fakes, detection scripts, and README-only repos.
This repository provides a working exploit for multiple stack-based buffer overflow vulnerabilities (CVE-2023-33669 through CVE-2023-33675) in the Tenda AC8v4 router (firmware US_AC8V4.0si_V16.03.34.06). The exploit is implemented in Python (exploit/rop.py) and leverages a MIPS ROP chain to hijack execution flow in the router's HTTP daemon (/bin/httpd) via a crafted POST request to the /goform/SetSysTimeCfg endpoint. The exploit requires the attacker to host a TFTP server with a precompiled MIPS reverse shell binary (exploit/rs.c, compiled as 'rs'). Upon successful exploitation, the router downloads and executes the reverse shell, connecting back to the attacker's machine on port 9000, providing remote shell access. The repository also includes detailed markdown reports for each CVE, describing the vulnerable functions, affected parameters, and exploitation details. The main entry point for exploitation is exploit/rop.py, which automates the attack process. The attack vector is network-based, requiring access to the router's HTTP interface.
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