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An integer overflow vulnerability exists in the dm_checkString function of TP-LINK TL-WR840N(ES)_V6.20_180709. An attacker can exploit this by sending a specially crafted HTTP request, causing the function to mishandle integer values and resulting in a denial of service condition.
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1 valid exploit after Mallory filtered fakes, detection scripts, and README-only repos.
This repository contains a Python exploit script (CVE-2022-25062.py) targeting a buffer overflow vulnerability (CVE-2022-25062) in the TP-Link WR840N router's DNS module. The exploit requires the attacker to provide the router's IP address and valid administrator credentials. The script constructs a malicious payload containing custom MIPS shellcode and sends it via an HTTP POST request to the router's /cgi?2 endpoint, exploiting the buffer overflow in the DNS configuration field. If successful, the shellcode is executed on the router, granting the attacker remote code execution capabilities. The repository also includes a brief README describing the exploit's purpose. The code is standalone, written in Python, and does not rely on any external frameworks.
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