CVE-2021-36168 : Security Advisory and Response
Learn about CVE-2021-36168, a Path Traversal vulnerability in Fortinet FortiPortal versions before 6.0.5 and 5.3.6 allowing information disclosure. Get mitigation steps and security practices.
A Path Traversal vulnerability in Fortinet FortiPortal versions before 6.0.5 and 5.3.6 allows authenticated attackers to disclose sensitive information through crafted GET requests.
Understanding CVE-2021-36168
This CVE describes a security issue in Fortinet FortiPortal that could lead to information disclosure.
What is CVE-2021-36168?
CVE-2021-36168 is a Path Traversal vulnerability in Fortinet FortiPortal that allows authenticated attackers to access restricted directories using malicious parameter values.
The Impact of CVE-2021-36168
The vulnerability has a CVSS base score of 6.2, making it a medium-severity issue. It could result in high confidentiality impact but low integrity impact, requiring low privileges for exploitation.
Technical Details of CVE-2021-36168
This section provides more details about the vulnerability, affected systems, and the exploitation mechanism.
Vulnerability Description
The vulnerability arises from improper limitation of a pathname to a restricted directory, enabling attackers to disclose sensitive information.
Affected Systems and Versions
Fortinet FortiPortal versions 6.0.4, 6.0.3, 6.0.2, 6.0.1, 6.0.0, 5.3.5, and earlier are affected by this vulnerability.
Exploitation Mechanism
Attackers need to be authenticated to exploit the vulnerability by sending crafted GET requests with malicious parameter values.
Mitigation and Prevention
To secure systems against CVE-2021-36168, immediate steps can be taken along with long-term security practices.
Immediate Steps to Take
Ensure systems are updated to FortiPortal 6.0.5 or 5.3.6 to mitigate the vulnerability. Monitor and restrict access to sensitive directories.
Long-Term Security Practices
Implement regular security updates and patches, conduct routine security audits, and educate users on safe browsing practices to prevent similar vulnerabilities.
Patching and Updates
Regularly check for vendor security advisories and apply patches promptly to address known vulnerabilities.