CVE-2021-31381 Explained : Impact and Mitigation
Discover the impact of CVE-2021-31381 on Juniper Networks SRC Series, a vulnerability allowing remote attackers to delete files, disrupting system integrity. Learn about affected versions and mitigation strategies.
A configuration weakness in the JBoss Application Server (AppSvr) component of Juniper Networks SRC Series could allow a remote attacker to disrupt system integrity and availability by sending a specially crafted query that may delete files.
Understanding CVE-2021-31381
This CVE describes a vulnerability in Juniper Networks SRC Series that enables a remote attacker to potentially delete files by exploiting a configuration weakness in the JBoss Application Server (AppSvr) component.
What is CVE-2021-31381?
CVE-2021-31381 refers to a vulnerability in Juniper Networks SRC Series that allows a remote attacker to disrupt system integrity and availability through a specially crafted query.
The Impact of CVE-2021-31381
This vulnerability could lead to file deletion, compromising the availability and integrity of the affected system. However, Juniper SIRT has not identified any malicious exploitation of this vulnerability to date.
Technical Details of CVE-2021-31381
This section provides insights into the vulnerability's description, affected systems, versions, and exploitation mechanism.
Vulnerability Description
A configuration weakness in the JBoss Application Server (AppSvr) component of Juniper Networks SRC Series allows a remote attacker to send a specially crafted query leading to potential file deletions, impacting system integrity and availability.
Affected Systems and Versions
The vulnerability impacts Juniper Networks SRC Series versions less than 4.12.0R5 and 4.13.0R3, including unspecified versions with custom configurations.
Exploitation Mechanism
Exploiting this vulnerability involves sending a specially crafted query to the affected web server, triggering file deletion and potentially disrupting system operations.
Mitigation and Prevention
Protect your systems against CVE-2021-31381 using the following strategies and recommendations.
Immediate Steps to Take
As a precaution, update your SRC Series to the fixed software releases: 4.12.0R5, 4.13.0R3, or any subsequent releases provided by Juniper Networks.
Long-Term Security Practices
Implement robust security best practices to limit the attack surface and access to trusted systems, networks, and hosts.
Patching and Updates
Regularly apply security patches and updates from Juniper Networks to address known vulnerabilities and enhance system security.