SeedDMS stores uploaded files in:
Deploy a robust HTTP response header to restrict the behavior of unauthorized JavaScript executions. A strict CSP prevents hijacked browsers from sending stolen cookies to external threat domains:
The CVSS v3.1 base score for SQL injection vulnerabilities typically ranges from 6.1 to 7.2, depending on the database user’s privileges and the specifics of the affected component.
If you are administering a SeedDMS instance, . If it's 5.1.22 or earlier (pre-5.1.23), assume compromise and perform a full forensic audit.
Login with valid credentials (even low-privileged ones with upload rights). seeddms 5.1.22 exploit
This PoC sends a GET request to the vulnerable server, attempting to include the /etc/passwd file. A successful response indicates that the vulnerability is present.
SeeddMS 5.1.22 is known to be vulnerable to via unrestricted file uploads. This vulnerability occurs because the application fails to properly validate the file extensions of uploaded documents, allowing an authenticated attacker to upload and execute malicious PHP scripts. 🛠️ Exploit Details
Using curl :
From here, the attacker can:
: Regularly check the Log Management panel for suspicious entries or script-like payloads in event comments.
The script sends a POST request to the document creation endpoint (typically op/op.AddDocument.php ). The request includes parameters for the target folder ID, document title, and the malicious payload attached as the file asset. Step 4: Locating the Uploaded Script
The most critical issue affecting SeedDMS versions up to 5.1.22 (and earlier versions like 5.1.10) is a vulnerability, often tracked under CVE-2019-12744 .
SeedDMS versions 5.1.7 and 5.1.22 share a critical flaw in password reset functionality. The reset tokens are generated with , making them vulnerable to brute-force attacks. SeedDMS stores uploaded files in: Deploy a robust
The system deletes the targeted file, potentially causing a denial of service or breaking the application.
: Once inside, the attacker navigates to the "Add Document" section. Instead of a standard PDF or Word file, they upload a malicious PHP script containing a simple backdoor: Use code with caution. Copied to clipboard
, proved that even an "authenticated" system isn't safe if it allows unvalidated file uploads that lead to Remote Command Execution (RCE) The Moral: Staying Current