CVE-2019-25031 Explained : Impact and Mitigation
Learn about CVE-2019-25031, a disputed vulnerability in Unbound allowing configuration injection. Find out the impact, affected systems, exploitation mechanism, and mitigation steps.
Unbound before version 1.9.5 is susceptible to a configuration injection issue in the create_unbound_ad_servers.sh script after a successful man-in-the-middle attack on a cleartext HTTP session. Although the Unbound software vendor does not classify this as a vulnerability, it poses a potential risk.
Understanding CVE-2019-25031
This CVE describes a disputed vulnerability in Unbound that could lead to configuration injection.
What is CVE-2019-25031?
Unbound prior to version 1.9.5 is at risk of configuration injection in the create_unbound_ad_servers.sh script following a successful man-in-the-middle attack on a cleartext HTTP session.
The Impact of CVE-2019-25031
The Unbound software vendor does not recognize this as a vulnerability, but it could potentially allow malicious actors to manipulate configurations.
Technical Details of CVE-2019-25031
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Vulnerability Description
The create_unbound_ad_servers.sh script in Unbound before 1.9.5 is vulnerable to configuration injection post a successful man-in-the-middle attack on a cleartext HTTP session.
Affected Systems and Versions
- Product: Not applicable
- Vendor: Not applicable
- Versions: Not applicable
Exploitation Mechanism
The vulnerability arises after a successful man-in-the-middle attack on a cleartext HTTP session, enabling configuration injection in the create_unbound_ad_servers.sh script.
Mitigation and Prevention
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Immediate Steps to Take
- Regularly monitor for any suspicious activities or unauthorized changes in configurations.
- Implement encryption mechanisms to secure HTTP sessions and prevent man-in-the-middle attacks.
Long-Term Security Practices
- Conduct regular security audits and assessments to identify and address vulnerabilities promptly.
- Educate personnel on best practices for secure configuration management and script usage.
Patching and Updates
Ensure that Unbound is updated to version 1.9.5 or later to mitigate the risk of configuration injection in the create_unbound_ad_servers.sh script.