CVE-2023-43177 is a critical vulnerability in CrushFTP caused by improperly controlled modification of dynamically determined object attributes. It affects CrushFTP versions prior to 10.5.2 according to the cited advisory. The flaw can be exploited without authentication and has been described as enabling unauthorized access to files stored on the server, disclosure of plaintext passwords, and remote code execution. Public reporting also notes that proof-of-concept exploit code was disclosed, increasing the likelihood of opportunistic exploitation.
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What an attacker gets, and what they’ve been doing with it.
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Patch, then assume compromise.
1 valid exploit after Mallory filtered fakes, detection scripts, and README-only repos.
This repository contains a single Python exploit script (CVE-2023-43177.py) and a brief README. The exploit targets CrushFTP servers (versions <=10.5.1) and leverages a vulnerability (CVE-2023-43177) to achieve remote code execution. The script operates by first obtaining an anonymous session, then stealing the 'sessions.obj' file to enumerate and hijack valid user sessions. If an admin session is found, the script can escalate privileges and execute arbitrary commands on the server. The exploit interacts with the CrushFTP web interface over HTTPS, using endpoints such as '/WebInterface/function/'. The code is operational, providing both session hijacking and RCE capabilities, and is intended for use against vulnerable, internet-accessible CrushFTP instances. The repository is well-structured for exploitation, with the main logic contained in a single, comprehensive Python file.
Products and vendors Mallory has correlated with this vulnerability. Open in Mallory to drill down to specific CPE configurations and version ranges.
Vendor-confirmed product mapping. Mallory continuously reconciles this list against your asset inventory.
3 sources tracked across advisories, community write-ups, and news. New activity surfaces here as Mallory finds it.
A prior CrushFTP protocol-related vulnerability referenced in the vendor security history.
A critical remote code execution vulnerability in CrushFTP for which a proof-of-concept exploit was released.
A critical CrushFTP vulnerability that can allow unauthenticated access to server files, remote code execution, and disclosure of plain-text passwords.
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.