CVE-2019-1003099 : Exploit Details and Defense Strategies

A vulnerability in the Jenkins openid Plugin allows attackers with specific permissions to establish connections with unauthorized servers.

Understanding CVE-2019-1003099

This CVE involves a security flaw in the Jenkins openid Plugin that can be exploited by attackers with certain permissions.

What is CVE-2019-1003099?

The OpenIdSsoSecurityRealm.DescriptorImpl#doValidate form validation method in the Jenkins openid Plugin lacks a permission check, enabling attackers with Overall/Read permission to connect to a server of their choice.

The Impact of CVE-2019-1003099

This vulnerability poses a risk as it allows unauthorized connections to be established by attackers with specific permissions.

Technical Details of CVE-2019-1003099

The technical aspects of the CVE provide insight into the vulnerability and its implications.

Vulnerability Description

The OpenIdSsoSecurityRealm.DescriptorImpl#doValidate form validation method in the Jenkins openid Plugin lacks a permission check, enabling unauthorized server connections.

Affected Systems and Versions

Product: Jenkins openid Plugin
Vendor: Jenkins project
Versions: All versions as of 2019-04-03

Exploitation Mechanism

Attackers with Overall/Read permission can exploit this vulnerability to connect to a server of their choice.

Mitigation and Prevention

Protecting systems from CVE-2019-1003099 requires immediate actions and long-term security practices.

Immediate Steps to Take

Update the Jenkins openid Plugin to the latest version.
Restrict Overall/Read permissions to trusted users only.

Long-Term Security Practices

Regularly review and update permissions and access controls.
Conduct security training for users to prevent unauthorized access.

Patching and Updates

Ensure timely patching of the Jenkins openid Plugin to address the vulnerability and prevent exploitation.