CVE-2020-28735 : What You Need to Know
Learn about CVE-2020-28735, a vulnerability in Plone before 5.2.3 allowing SSRF attacks via the tracebacks feature. Find mitigation steps and prevention measures.
Plone before 5.2.3 allows SSRF attacks via the tracebacks feature (only available to the Manager role).
Understanding CVE-2020-28735
Plone before version 5.2.3 is vulnerable to SSRF attacks through the tracebacks feature, accessible only to users with the Manager role.
What is CVE-2020-28735?
CVE-2020-28735 is a security vulnerability in Plone that enables Server-Side Request Forgery (SSRF) attacks via the tracebacks feature, specifically exploitable by users with the Manager role.
The Impact of CVE-2020-28735
This vulnerability could allow an attacker to send crafted requests from the server, potentially leading to unauthorized access to internal systems or services.
Technical Details of CVE-2020-28735
Plone before version 5.2.3 is susceptible to SSRF attacks due to inadequate input validation in the tracebacks feature.
Vulnerability Description
The vulnerability in Plone before 5.2.3 allows attackers to perform SSRF attacks through the tracebacks feature, which is restricted to users with the Manager role.
Affected Systems and Versions
- Product: Plone
- Vendor: N/A
- Versions Affected: All versions before 5.2.3
Exploitation Mechanism
- Attackers with the Manager role can exploit the tracebacks feature to send malicious requests from the server, potentially accessing internal resources.
Mitigation and Prevention
To address CVE-2020-28735, immediate steps and long-term security practices are recommended.
Immediate Steps to Take
- Upgrade to Plone version 5.2.3 or later to mitigate the SSRF vulnerability.
- Restrict access to the tracebacks feature to only essential roles to minimize the attack surface.
Long-Term Security Practices
- Regularly review and update access controls and permissions within the Plone platform.
- Educate users with elevated roles on the risks associated with SSRF attacks and the importance of secure coding practices.
Patching and Updates
- Stay informed about security updates and patches released by Plone to address vulnerabilities like CVE-2020-28735.