CVE-2024-12084 is a critical vulnerability in the widely-used Rsync tool, identified as a heap-based buffer overflow.
This flaw arises from improper handling of attacker-controlled checksum lengths (s2length) in the Rsync daemon.
When the checksum length exceeds a fixed boundary, it allows attackers to write data out-of-bounds into memory, potentially leading to remote code execution (RCE) or denial of service (DoS).
The vulnerability has been rated with a CVSS score of 9.8, reflecting its high severity.
The provided Python script is designed to test Rsync servers for vulnerabilities, particularly focusing on modules’ accessibility and permissions. Here’s an overview of its key functions:
list_modules(ip)
:rsync
command.test_module(ip, module)
:process_ips(ip_list)
:ips.txt
) containing IP addresses.This tool can be used to identify potential vulnerabilities in Rsync servers that could be exploited via CVE-2024-12084.
If a server allows anonymous access or has writable modules, it becomes an easy target for attackers to exploit the heap overflow vulnerability for remote code execution or data compromise.
To address CVE-2024-12084:
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