CVE-2019-10162 : Vulnerability Insights and Analysis

A security flaw has been discovered in versions 4.1.10 and 4.0.8 of PowerDNS Authoritative Server that allows an authorized user to force the server to shut down by introducing a manipulated record in their controlled zone.

Understanding CVE-2019-10162

This CVE pertains to a vulnerability found in PowerDNS Authoritative Server versions 4.1.10 and 4.0.8.

What is CVE-2019-10162?

CVE-2019-10162 is a security vulnerability in PowerDNS Authoritative Server versions 4.1.10 and 4.0.8 that enables an authorized user to cause the server to exit by inserting a crafted record in a MASTER type zone under their control.

The Impact of CVE-2019-10162

The vulnerability allows an attacker to manipulate the server to shut down by introducing a specific record in their controlled zone, affecting the server's availability.

Technical Details of CVE-2019-10162

This section provides technical details of the CVE.

Vulnerability Description

The vulnerability in PowerDNS Authoritative Server versions 4.1.10 and 4.0.8 allows an authorized user to force the server to shut down by introducing a manipulated record in their controlled zone.

Affected Systems and Versions

Product: PowerDNS
Vendor: PowerDNS
Affected Versions: 4.1.10, 4.0.8

Exploitation Mechanism

Attack Complexity: Low
Attack Vector: Network
Privileges Required: Low
User Interaction: Required
Scope: Unchanged
Availability Impact: Low
Confidentiality Impact: None
Integrity Impact: None

Mitigation and Prevention

Protect your systems from CVE-2019-10162 with the following steps:

Immediate Steps to Take

Update PowerDNS Authoritative Server to versions 4.1.10 or 4.0.8, where the vulnerability is fixed.
Monitor for any unauthorized changes in the controlled zone.

Long-Term Security Practices

Regularly update and patch your systems to prevent vulnerabilities.
Implement proper access controls and monitoring mechanisms to detect and prevent unauthorized actions.

Patching and Updates

Apply the patches provided by PowerDNS to address the vulnerability.