CVE-2018-5123 : Security Advisory and Response

Bugzilla versions prior to 4.4 had a vulnerability allowing unauthorized access to restricted bug entries.

Understanding CVE-2018-5123

Bugzilla, developed by Mozilla, had an improper access control issue before version 4.4, enabling third-party websites to access restricted bug entry information.

What is CVE-2018-5123?

Before Bugzilla version 4.4, a vulnerability existed that permitted third-party websites to retrieve data from restricted bug entries using the image generation feature in 'report.cgi'.

The Impact of CVE-2018-5123

The vulnerability allowed unauthorized access to sensitive bug entry information, potentially compromising confidentiality and integrity.

Technical Details of CVE-2018-5123

Bugzilla CVE-2018-5123 specifics:

Vulnerability Description

Bugzilla versions prior to 4.4 were susceptible to improper access control, enabling unauthorized retrieval of restricted bug entry data.

Affected Systems and Versions

Product: Bugzilla
Vendor: Mozilla
Vulnerable Versions: All versions before Bugzilla 4.4

Exploitation Mechanism

Exploitation involved utilizing the image generation functionality in 'report.cgi' to access restricted bug entry information.

Mitigation and Prevention

Protect your systems from CVE-2018-5123:

Immediate Steps to Take

Upgrade Bugzilla to version 4.4 or later to mitigate the vulnerability.
Implement access controls to restrict unauthorized access to sensitive bug entry data.

Long-Term Security Practices

Regularly monitor and audit access to bug entries to detect unauthorized activities.
Educate users on secure bug entry handling practices to prevent data leakage.

Patching and Updates

Stay informed about security patches and updates for Bugzilla to address vulnerabilities promptly.