CVE-2021-27394 : Exploit Details and Defense Strategies
Learn about CVE-2021-27394 affecting Siemens' Mendix Applications. Discover the impact, affected systems, exploitation mechanism, and mitigation steps to prevent privilege escalation.
A vulnerability has been identified in Mendix Applications using various versions of Mendix. Authenticated, non-administrative users could manipulate their privileges to gain administrative access.
Understanding CVE-2021-27394
This CVE affects Mendix Applications utilizing different versions of the Mendix platform, allowing unauthorized privilege escalation.
What is CVE-2021-27394?
CVE-2021-27394 is a vulnerability found in Siemens' Mendix Applications. It enables authenticated but non-administrative users to elevate their privileges to gain administrative control.
The Impact of CVE-2021-27394
The vulnerability poses a significant risk as attackers could exploit it to gain unauthorized access and potentially disrupt or manipulate the affected systems.
Technical Details of CVE-2021-27394
The CVE is related to improper privilege management within Mendix Applications, impacting various versions.
Vulnerability Description
The vulnerability allows authenticated users to modify their privileges by manipulating the user roles, leading to unauthorized administrative access.
Affected Systems and Versions
- Mendix Applications using Mendix 7: All versions before V7.23.19
- Mendix Applications using Mendix 8: All versions before V8.17.0
- Mendix Applications using Mendix 8 (V8.12): All versions before V8.12.5
- Mendix Applications using Mendix 8 (V8.6): All versions before V8.6.9
- Mendix Applications using Mendix 9: All versions before V9.0.5
Exploitation Mechanism
Attackers with authenticated access could exploit this vulnerability by manipulating user roles to escalate their privileges.
Mitigation and Prevention
It is crucial to take immediate actions to mitigate the risk and prevent unauthorized access.
Immediate Steps to Take
- Apply the recommended security patches provided by Siemens promptly.
- Monitor user roles and privileges to detect any unauthorized changes.
Long-Term Security Practices
- Conduct regular security audits to identify vulnerabilities proactively.
- Educate users on the importance of secure authentication practices.
Patching and Updates
Ensure all Mendix Applications are updated to versions that address this vulnerability to prevent exploitation.