A vulnerability in Open Design Alliance Drawings SDK before version 2024.12 allows an attacker to trigger an out-of-bounds write by supplying a crafted DGN file with a corrupted value for the number of sectors used by the Fat structure. This flaw occurs during the parsing of the DGN file, where improper validation of the sector count leads to memory corruption and potential code execution.
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1 valid exploit after Mallory filtered fakes, detection scripts, and README-only repos.
This repository contains an exploit (heimShell.py) for CVE-2023-51803, targeting LinuxServer.io Heimdall versions 2.2.3 through 2.5.6. The exploit leverages an arbitrary file upload vulnerability in the Heimdall dashboard application. The Python script performs the following steps: (1) checks the target's version via the /settings endpoint, (2) retrieves a CSRF token from /items/create, (3) uploads a new dashboard item with the icon parameter set to a remote PHP shell URL, (4) enumerates items to find the newly created entry, and (5) extracts the URL of the uploaded shell from the edit page. If successful, the attacker is provided with a direct URL to a PHP web shell on the target server, enabling remote code execution. The repository consists of a single exploit script and a README with usage instructions and references. The exploit is operational and provides a working attack chain for unauthenticated remote code execution on vulnerable Heimdall instances.
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.
No public activity tracked yet. Mallory keeps watching.
No public activity observed for this vulnerability.
Query your assets running an affected version, and investigate the blast radius.
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Malware families riding this exploit, with evidence and IOCs.
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Cross-references every affected SKU, including bundled OEM variants.
Community discussion across Reddit, Mastodon, and other social sources.