CVE-2020-2093 : Security Advisory and Response

A cross-site request forgery vulnerability in Jenkins Health Advisor by CloudBees Plugin 3.0 and earlier allows attackers to send an email with fixed content to an attacker-specified recipient.

Understanding CVE-2020-2093

This CVE involves a security vulnerability in the Jenkins Health Advisor by CloudBees Plugin that enables attackers to perform a cross-site request forgery attack.

What is CVE-2020-2093?

The CVE-2020-2093 vulnerability in Jenkins Health Advisor by CloudBees Plugin 3.0 and earlier permits malicious actors to send emails with predetermined content to a recipient specified by the attacker.

The Impact of CVE-2020-2093

The vulnerability can be exploited by attackers to manipulate the email functionality of the affected plugin, potentially leading to unauthorized email communications being sent.

Technical Details of CVE-2020-2093

This section provides more in-depth technical insights into the CVE-2020-2093 vulnerability.

Vulnerability Description

The vulnerability in Jenkins Health Advisor by CloudBees Plugin 3.0 and earlier allows for cross-site request forgery attacks, enabling unauthorized email sending with fixed content.

Affected Systems and Versions

Product: Jenkins Health Advisor by CloudBees Plugin
Vendor: Jenkins project
Versions Affected: <= 3.0

Exploitation Mechanism

Attackers can exploit this vulnerability by crafting a malicious request that tricks a user with privileges into sending an email with predefined content to a recipient specified by the attacker.

Mitigation and Prevention

To address and prevent the CVE-2020-2093 vulnerability, consider the following steps:

Immediate Steps to Take

Update the Jenkins Health Advisor by CloudBees Plugin to a version that includes a patch for the vulnerability.
Monitor email communications for any suspicious or unauthorized activities.

Long-Term Security Practices

Regularly review and update security configurations for Jenkins and its plugins.
Educate users on recognizing and avoiding social engineering tactics that could lead to CSRF attacks.

Patching and Updates

Ensure timely installation of security patches and updates for Jenkins and its associated plugins to mitigate the risk of CSRF vulnerabilities.