CVE-2021-23001 Explained : Impact and Mitigation
Learn about CVE-2021-23001, a vulnerability in BIG-IP Advanced WAF and ASM. Find out its impact, affected versions, and how to mitigate this security issue.
This article provides details about CVE-2021-23001, a vulnerability found in BIG-IP Advanced WAF and BIG-IP ASM.
Understanding CVE-2021-23001
CVE-2021-23001 is a vulnerability present in certain versions of BIG-IP Advanced WAF and BIG-IP ASM that allows an authenticated user to upload files to the system using a specific iControl REST endpoint.
What is CVE-2021-23001?
The vulnerability exists in versions 16.0.x before 16.0.1.1, 15.1.x before 15.1.2.1, 14.1.x before 14.1.4, 13.1.x before 13.1.3.6, 12.1.x before 12.1.5.3, and 11.6.x before 11.6.5.3 of BIG-IP Advanced WAF and BIG-IP ASM.
The Impact of CVE-2021-23001
This vulnerability could be exploited by an authenticated user to upload files to the system, potentially leading to unauthorized access or further attacks. The affected software versions have not been evaluated.
Technical Details of CVE-2021-23001
The technical details of CVE-2021-23001 include:
Vulnerability Description
The upload functionality in BIG-IP Advanced WAF and BIG-IP ASM allows an authenticated user to upload files to the system using a call to an undisclosed iControl REST endpoint.
Affected Systems and Versions
Versions affected include 16.0.x before 16.0.1.1, 15.1.x before 15.1.2.1, 14.1.x before 14.1.4, 13.1.x before 13.1.3.6, 12.1.x before 12.1.5.3, and 11.6.x before 11.6.5.3 of BIG-IP Advanced WAF and BIG-IP ASM.
Exploitation Mechanism
An authenticated user can exploit this vulnerability by uploading files through a specific iControl REST endpoint.
Mitigation and Prevention
To address CVE-2021-23001, consider the following measures:
Immediate Steps to Take
- Update to the patched versions provided by the vendor.
- Monitor system for any unauthorized file uploads.
Long-Term Security Practices
- Regularly apply security updates to your software.
- Restrict access to critical system functionalities.
Patching and Updates
Ensure your system is updated to versions 16.0.1.1, 15.1.2.1, 14.1.4, 13.1.3.6, 12.1.5.3, or 11.6.5.3 to mitigate the vulnerability.