Seeddms - 5.1.22 Exploit __exclusive__
grep "op.AddFile.php" /var/log/apache2/access.log | grep -B1 "POST"
If the application path maps the document ID to the filesystem, the URL to trigger the shell might look like this:
An attacker with authenticated access (even with lower-tier permissions) uploads a document containing malicious PHP code. If the application does not validate the file extension against a strict allowlist—or fails to sanitize input fields handled by underlying script components—the file is written to a web-accessible directory.
: Change default database credentials immediately. Use strong, unique passwords for database connections. Implement network-level restrictions to limit database access to only necessary hosts. seeddms 5.1.22 exploit
For Nginx, add a location block to block PHP execution in the storage path: location ^~ /seeddms/data/ deny all; Use code with caution. 3. Move the Data Directory Outside the Web Root
When an administrator reviews the system logs or event history, this payload executes silently. The script extracts the admin’s session cookie and transmits it to the attacker's server, resulting in immediate . 2. File Upload Restrictions & The RCE Threat Landscape
: Ensure the physical storage directories used for document management reside outside the public web root ( /var/www/html/ ). This prevents any direct HTTP routing to uploaded execution scripts. grep "op
Once uploaded, SeeddMS stores documents in a specific directory structure. You must find the internal ID assigned to the document. The typical path follows this pattern: http://[target]/seeddms/data/1048576/[document_id]/1.php 5. Execute Commands
Organizations running SeedDMS 5.1.22 should implement comprehensive security measures to protect against the vulnerabilities discussed in this article.
: Direct access to the configuration file reveals database credentials: username seeddms with password seeddms . This configuration file also exposes the website's absolute path, providing valuable information for subsequent exploitation steps. Use strong, unique passwords for database connections
Security researchers identified critical flaws in SeedDMS 5.1.22. These flaws primarily involve improper input validation and broken access controls. The most severe exploit path combines an Arbitrary File Upload flaw with an Unauthenticated Path Traversal or Direct Object Reference vulnerability. 1. Unrestricted File Upload
: With database credentials, the attacker connects to the MySQL database and examines the tblUsers table. The table contains password hashes and other user information. By updating the admin account's password hash to a known value, the attacker gains administrative access to the SeedDMS platform.
Because the application fails to properly validate the file extension or content, the PHP script is stored in the data directory.
Vulnerability Analysis and Exploitation of SeedDMS 5.1.22
That being said, here are some general steps to evaluate the severity of a potential exploit: