CVE-2019-13126 Explained : Impact and Mitigation
Learn about CVE-2019-13126, a vulnerability in NATS Server versions before 2.0.2 allowing remote attackers to crash the server via an integer overflow exploit. Find out how to mitigate and prevent this issue.
A remote attacker can cause a server crash in NATS Server versions prior to 2.0.2 by triggering an integer overflow.
Understanding CVE-2019-13126
A vulnerability in NATS Server that allows a remote attacker to crash the server by exploiting an integer overflow.
What is CVE-2019-13126?
An integer overflow in NATS Server versions before 2.0.2 enables a remote attacker to crash the server by sending a specially crafted request. If authentication is enabled, the attacker must first authenticate.
The Impact of CVE-2019-13126
- Allows a remote attacker to crash the NATS Server
- Requires the attacker to send a specifically designed request
Technical Details of CVE-2019-13126
A detailed look at the technical aspects of the vulnerability.
Vulnerability Description
- Type: Integer overflow
- Target: NATS Server versions prior to 2.0.2
- Trigger: Specially crafted request
Affected Systems and Versions
- Affected: NATS Server versions before 2.0.2
- Not affected: Versions from 2.0.2 onwards
Exploitation Mechanism
- Attacker triggers an integer overflow by sending a crafted request
- If authentication is active, the attacker must first authenticate
Mitigation and Prevention
Steps to mitigate and prevent exploitation of CVE-2019-13126.
Immediate Steps to Take
- Update NATS Server to version 2.0.2 or later
- Disable authentication if not required
Long-Term Security Practices
- Regularly update and patch NATS Server
- Implement network security measures to prevent unauthorized access
Patching and Updates
- Apply patches and updates provided by NATS Server to fix the vulnerability