CVE-2018-10852 : Vulnerability Insights and Analysis

CVE-2018-10852, published on June 26, 2018, addresses a security vulnerability in SSSD versions prior to 1.16.3. The vulnerability allows unauthorized access to sudo rules through a permissive UNIX pipe.

Understanding CVE-2018-10852

This CVE entry highlights a flaw in SSSD versions before 1.16.3 that enables unauthorized users to retrieve sudo rules through a vulnerable UNIX pipe.

What is CVE-2018-10852?

The vulnerability in SSSD versions prior to 1.16.3 allows any user capable of using the same protocol as sudo and SSSD to access sudo rules for any user.

The Impact of CVE-2018-10852

The impact of this vulnerability is rated as low severity with a CVSS base score of 3.8. It requires low privileges and user interaction, affecting confidentiality and integrity.

Technical Details of CVE-2018-10852

This section delves into the technical aspects of the CVE.

Vulnerability Description

The vulnerability arises from the overly permissive UNIX pipe used by sudo to communicate with SSSD, enabling unauthorized access to sudo rules.

Affected Systems and Versions

Product: SSSD
Vendor: [UNKNOWN]
Versions Affected: SSSD 1.16.3 and earlier

Exploitation Mechanism

Unauthorized users can exploit the vulnerability by leveraging the rudimentary protocol shared by sudo and SSSD to access sudo rules.

Mitigation and Prevention

Protecting systems from CVE-2018-10852 involves immediate steps and long-term security practices.

Immediate Steps to Take

Update SSSD to version 1.16.3 or newer to mitigate the vulnerability.
Monitor system logs for any suspicious activities related to sudo rules access.

Long-Term Security Practices

Implement least privilege access controls to limit unauthorized access.
Regularly review and update sudo configurations to enhance security.

Patching and Updates

Apply security patches provided by the vendor to address the vulnerability effectively.