CVE-2021-35343 : Security Advisory and Response
Learn about CVE-2021-35343, a CSRF vulnerability in SeedDMS allowing attackers to modify document names without user knowledge. Find mitigation steps here.
This article provides details about CVE-2021-35343, a Cross-Site Request Forgery (CSRF) vulnerability in SeedDMS versions 5.1.x<5.1.23 and 6.0.x<6.0.16.
Understanding CVE-2021-35343
CVE-2021-35343 is a CSRF vulnerability that allows a remote attacker to manipulate document names without the victim's knowledge.
What is CVE-2021-35343?
The vulnerability exists in the /op/op.Ajax.php endpoint in SeedDMS versions 5.1.x<5.1.23 and 6.0.x<6.0.16. By tricking an authenticated user to visit a malicious web page, an attacker can modify document names without user consent.
The Impact of CVE-2021-35343
An attacker can exploit this vulnerability to rename documents unknowingly to the user, potentially leading to confusion, unauthorized access, or unauthorized modifications.
Technical Details of CVE-2021-35343
CVE-2021-35343 is primarily characterized by the following technical aspects:
Vulnerability Description
The CSRF flaw in SeedDMS versions 5.1.x<5.1.23 and 6.0.x<6.0.16 allows unauthorized users to edit document names through a manipulated web page access.
Affected Systems and Versions
SeedDMS versions 5.1.x<5.1.23 and 6.0.x<6.0.16 are affected by this vulnerability.
Exploitation Mechanism
Remote attackers can exploit the vulnerability by luring authenticated users to visit specially crafted malicious web pages to alter document names.
Mitigation and Prevention
To address CVE-2021-35343, users and administrators are advised to implement the following security measures:
Immediate Steps to Take
- Upgrade SeedDMS to versions 5.1.23 and 6.0.16 or later to prevent exploitation.
- Avoid clicking on suspicious links or visiting untrusted websites.
Long-Term Security Practices
- Regularly monitor document name changes in SeedDMS systems to detect unauthorized modifications.
- Conduct security awareness training for users to recognize and avoid social engineering attacks.
Patching and Updates
SeedDMS users should regularly apply security patches and updates provided by the vendor to mitigate known vulnerabilities.