CVE-2017-16882 : Vulnerability Insights and Analysis

In Icinga Core up to version 1.14.0, a security vulnerability exists where local users can exploit their access to a non-root account to gain privileges.

Understanding CVE-2017-16882

In this CVE, the execution of certain Icinga Core files as root by default poses a security risk that can be leveraged by local users.

What is CVE-2017-16882?

CVE-2017-16882 relates to Icinga Core versions up to 1.14.0, where specific files executed as root can be owned by non-root accounts, allowing unauthorized privilege escalation.

The Impact of CVE-2017-16882

The vulnerability enables local users to elevate their privileges by exploiting the ownership of critical Icinga Core files.

Technical Details of CVE-2017-16882

This section delves into the technical aspects of the vulnerability.

Vulnerability Description

Icinga Core through version 1.14.0 executes certain files as root, but allows them to be owned by non-root accounts, leading to privilege escalation opportunities for local users.

Affected Systems and Versions

Product: Icinga Core
Versions affected: Up to 1.14.0

Exploitation Mechanism

Local users can exploit their access to non-root accounts owning specific Icinga Core files to gain unauthorized privileges.

Mitigation and Prevention

Protecting systems from CVE-2017-16882 involves taking immediate and long-term security measures.

Immediate Steps to Take

Monitor and restrict access to critical Icinga Core files.
Implement the principle of least privilege to limit user capabilities.
Regularly review and update file ownership and permissions.

Long-Term Security Practices

Conduct regular security audits and vulnerability assessments.
Educate users on secure practices and the risks of privilege escalation.

Patching and Updates

Apply patches and updates provided by Icinga Core to address this vulnerability.