CVE-2020-13818 : Security Advisory and Response
Learn about CVE-2020-13818, a vulnerability in Zoho ManageEngine OpManager allowing directory traversal bypass. Find out the impact, affected systems, exploitation, and mitigation steps.
In Zoho ManageEngine OpManager before 125144, when <cachestart> is used, directory traversal validation can be bypassed.
Understanding CVE-2020-13818
In this CVE, a vulnerability in Zoho ManageEngine OpManager allows bypassing of directory traversal validation.
What is CVE-2020-13818?
The vulnerability in Zoho ManageEngine OpManager before version 125144 enables attackers to bypass directory traversal validation when using <cachestart>.
The Impact of CVE-2020-13818
This vulnerability could be exploited by malicious actors to perform unauthorized directory traversal, potentially leading to unauthorized access to sensitive files and data.
Technical Details of CVE-2020-13818
Zoho ManageEngine OpManager before 125144 is susceptible to a directory traversal bypass vulnerability.
Vulnerability Description
The issue arises when <cachestart> is utilized, allowing attackers to evade directory traversal validation.
Affected Systems and Versions
- Product: Zoho ManageEngine OpManager
- Vendor: Zoho
- Versions affected: All versions before 125144
Exploitation Mechanism
Attackers can exploit this vulnerability by manipulating the <cachestart> function to bypass directory traversal validation.
Mitigation and Prevention
Steps to address and prevent the CVE-2020-13818 vulnerability.
Immediate Steps to Take
- Update Zoho ManageEngine OpManager to version 125144 or later.
- Monitor for any unauthorized access or file manipulation.
Long-Term Security Practices
- Regularly update and patch software to mitigate potential vulnerabilities.
- Implement access controls and restrictions to prevent unauthorized access.
Patching and Updates
Ensure timely installation of security patches and updates to Zoho ManageEngine OpManager to address known vulnerabilities.