CVE-2021-43070 : What You Need to Know
Learn about CVE-2021-43070, a medium-severity path traversal vulnerability in Fortinet FortiWLM allowing unauthorized access to files. Find mitigation steps and affected versions here.
A vulnerability in Fortinet FortiWLM allows attackers to perform path traversal attacks, potentially leading to arbitrary file retrieval.
Understanding CVE-2021-43070
What is CVE-2021-43070?
The CVE-2021-43070 vulnerability involves multiple relative path traversal issues in the FortiWLM management interface, enabling authenticated attackers to fetch arbitrary files from the system through specially crafted web requests.
The Impact of CVE-2021-43070
The vulnerability poses a medium severity risk with low confidentiality and integrity impact, requiring low privileges but with confirmed exploit code maturity.
Technical Details of CVE-2021-43070
Vulnerability Description
The flaw in FortiWLM versions 8.6.2 and below permits attackers to access files outside the intended directories through crafted HTTP requests.
Affected Systems and Versions
- Fortinet FortiWLM 8.6.2 and below
- Fortinet FortiWLM 8.5.2 and below
- Fortinet FortiWLM 8.4.2 and below
- Fortinet FortiWLM 8.3.3 and below
- Fortinet FortiWLM 8.2.2
Exploitation Mechanism
Attackers with network access and minimal privileges can exploit the vulnerability by manipulating web requests to traverse directories and access sensitive files.
Mitigation and Prevention
Immediate Steps to Take
- Apply vendor-supplied patches or updates promptly.
- Restrict network access to vulnerable systems.
- Monitor and analyze network traffic for any potential exploitation attempts.
Long-Term Security Practices
- Implement robust access controls and authentication mechanisms.
- Conduct regular security assessments and penetration testing.
Patching and Updates
Ensure timely installation of security patches and updates provided by Fortinet to mitigate the vulnerability.