CVE-2018-20826 Explained : Impact and Mitigation

In Jira versions prior to 7.12.3, a vulnerability exists that allows authenticated remote attackers to manipulate the issue reporter through the inline-create REST resource due to a lack of authorization verification.

Understanding CVE-2018-20826

This CVE identifies a security issue in Atlassian's Jira software that could be exploited by attackers to modify issue reporter details.

What is CVE-2018-20826?

The CVE-2018-20826 vulnerability in Jira versions before 7.12.3 enables authenticated remote attackers to alter the issue reporter by taking advantage of inadequate authorization checks.

The Impact of CVE-2018-20826

The vulnerability could lead to unauthorized modifications of issue reporter information, potentially affecting the integrity and confidentiality of data within the Jira system.

Technical Details of CVE-2018-20826

This section provides more in-depth technical insights into the CVE-2018-20826 vulnerability.

Vulnerability Description

The inline-create REST resource in Jira versions before 7.12.3 allows authenticated remote attackers to manipulate the reporter field in issues by exploiting a lack of authorization verification.

Affected Systems and Versions

Product: Jira
Vendor: Atlassian
Versions Affected: < 7.12.3 (unspecified version type)

Exploitation Mechanism

Attackers can exploit this vulnerability by leveraging the inline-create REST resource to modify the issue reporter without proper authorization checks.

Mitigation and Prevention

To address and prevent the CVE-2018-20826 vulnerability, follow these mitigation strategies:

Immediate Steps to Take

Upgrade Jira to version 7.12.3 or later to eliminate the vulnerability.
Implement strict access controls and authorization mechanisms within the Jira system.

Long-Term Security Practices

Regularly monitor and audit user activities within Jira to detect any unauthorized changes.
Stay informed about security updates and patches released by Atlassian for Jira.

Patching and Updates

Apply security patches and updates provided by Atlassian promptly to ensure the ongoing security of the Jira software.