CVE-2017-5573 : Security Advisory and Response

A vulnerability was identified in the Linux Foundation xapi used in Citrix XenServer up to version 7.0. An authenticated administrator with read-only privileges has the ability to terminate tasks performed by other administrators.

Understanding CVE-2017-5573

This CVE record highlights a security issue in Citrix XenServer that could be exploited by an authenticated read-only administrator.

What is CVE-2017-5573?

CVE-2017-5573 is a vulnerability in the Linux Foundation xapi component within Citrix XenServer versions up to 7.0. It allows an authenticated administrator with read-only privileges to terminate tasks of other administrators.

The Impact of CVE-2017-5573

The vulnerability could be exploited by a malicious authenticated user to disrupt tasks performed by other administrators, potentially leading to service interruptions or unauthorized actions.

Technical Details of CVE-2017-5573

This section provides more in-depth technical information about the CVE.

Vulnerability Description

The issue lies in the Linux Foundation xapi component in Citrix XenServer up to version 7.0, enabling a read-only administrator to cancel tasks of other administrators.

Affected Systems and Versions

Product: Citrix XenServer
Versions affected: Up to version 7.0

Exploitation Mechanism

An authenticated administrator with read-only privileges can exploit this vulnerability to terminate tasks performed by other administrators, potentially disrupting system operations.

Mitigation and Prevention

Protecting systems from CVE-2017-5573 requires immediate actions and long-term security practices.

Immediate Steps to Take

Monitor administrator activities for any suspicious behavior related to task termination.
Limit the number of administrators with read-only privileges to reduce the attack surface.

Long-Term Security Practices

Regularly review and update user privileges to ensure the principle of least privilege is followed.
Conduct security training for administrators to raise awareness of potential threats and best practices.

Patching and Updates

Apply patches and updates provided by Citrix to address the vulnerability and enhance system security.