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CVE-2024-12085 is a high-severity information disclosure vulnerability in rsync affecting versions up to and including 3.3.0. The flaw is triggered during file checksum comparison when an attacker can manipulate the checksum length parameter, identified as s2length, causing rsync to compare a checksum buffer against uninitialized memory. This results in disclosure of uninitialized stack data one byte at a time. The issue affects the rsync daemon/server-side implementation rather than the client application. The weakness can expose sensitive process memory contents and has been noted as chainable with CVE-2024-12084 in scenarios leading to broader compromise.
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1 valid exploit after Mallory filtered fakes, detection scripts, and README-only repos.
This repository contains a proof-of-concept exploit for CVE-2024-12085, an infoleak vulnerability in rsync 3.2.7. The main exploit is implemented in 'exploit.py', which connects to a hardcoded rsync server at 127.0.0.1:1234, targeting a module named 'test' and a file 'hello.txt'. The exploit crafts and sends a series of protocol messages to the rsync server, exploiting the vulnerability to leak up to 56 bytes of stack memory, which are then printed as 8-byte words. The exploit is not versatile; it is hardcoded for the specific module and file, and checksum calculation is not fully automated. Supporting files include 'checksum.py' (for checksum calculation, incomplete), 'port-forwarding.py' (a TCP port forwarding utility for capturing traffic), and 'test.sh' (a bash script to automate testing with a local rsync daemon). The attack vector is network-based, requiring access to the rsync service. The exploit does not provide remote code execution or shell access, but demonstrates the ability to leak sensitive memory from the server process.
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Vendor-confirmed product mapping. Mallory continuously reconciles this list against your asset inventory.
15 sources tracked across advisories, community write-ups, and news. New activity surfaces here as Mallory finds it.
A historical Samba information disclosure vulnerability mentioned only as part of vendor security history.
An information disclosure vulnerability in Samba Rsync mentioned only as historical background.
One of a set of Rsync daemon vulnerabilities (Rsync <= 3.3.0) that can contribute to remote code execution, directory traversal, and/or sensitive information disclosure.
An information leak vulnerability in rsync.
Query your assets running an affected version, and investigate the blast radius.
Every observed campaign linking this CVE to a named adversary.
Malware families riding this exploit, with evidence and IOCs.
YARA, Sigma, Snort, and vendor rules, auto-deployed to your SIEM.
Cross-references every affected SKU, including bundled OEM variants.
Community discussion across Reddit, Mastodon, and other social sources.