SB2019102410 - Multiple vulnerabilities in Libvirt Slaves plugin for Jenkins

Description

This security bulletin contains information about 3 secuirty vulnerabilities.

1) Permissions, Privileges, and Access Controls (CVE-ID: CVE-2019-10473)

The vulnerability allows a remote attacker to escalate privileges on the system.

The vulnerability exists due to improper check permissions in functionality that provides a list of applicable credential IDs. A remote authenticated attacker with Overall/Read permission can get a list of valid credentials IDs.

2) Server-Side Request Forgery (SSRF) (CVE-ID: CVE-2019-10472)

The disclosed vulnerability allows a remote user to perform SSRF attacks.

The vulnerability exists due to insufficient validation of user-supplied input. A remote authenticated user with Overall/Read permission can send a specially crafted HTTP request to an attacker-specified SSH server and trick the application to initiate requests to arbitrary systems, capturing credentials stored in Jenkins.

Successful exploitation of this vulnerability may allow a remote attacker gain access to sensitive data, located in the local network or send malicious requests to other servers from the vulnerable system.

3) Cross-site request forgery (CVE-ID: CVE-2019-10471)

The vulnerability allows a remote attacker to perform cross-site request forgery attacks.

The vulnerability exists due to the form validation method does not require POST requests. A remote attacker can trick the victim to visit a specially crafted web page and perform arbitrary actions on behalf of the victim on the vulnerable website.

Remediation

Cybersecurity Help is not aware of any official remediation provided by the vendor.

References

• https://jenkins.io/security/advisory/2019-10-23/#SECURITY-1014%20(2)
• https://jenkins.io/security/advisory/2019-10-23/#SECURITY-1014%20(1)