CVE-2019-7479 : Exploit Details and Defense Strategies

A vulnerability in SonicOS and SonicOSv allows an authenticated read-only admin to elevate permissions to the configuration mode. This security flaw impacts various versions of SonicWall's products.

Understanding CVE-2019-7479

This CVE involves an improper authorization vulnerability in SonicOS and SonicOSv, potentially leading to elevated permissions.

What is CVE-2019-7479?

An authenticated read-only admin can exploit a vulnerability in SonicOS to gain elevated permissions in the configuration mode. This security flaw affects various versions of SonicOS Gen 5 and Gen 6, as well as SonicOSv.

The Impact of CVE-2019-7479

The vulnerability allows unauthorized users to gain elevated permissions, posing a risk of unauthorized access and potential misuse of system configurations.

Technical Details of CVE-2019-7479

This section provides detailed technical information about the vulnerability.

Vulnerability Description

The vulnerability in SonicOS and SonicOSv allows authenticated read-only admins to escalate their permissions to the configuration mode, potentially leading to unauthorized access.

Affected Systems and Versions

SonicOS Gen 5 versions: 5.9.1.12-4o and earlier, 6.2.7.4-32n, 6.5.1.4-4n, 6.5.2.3-4n, 6.5.3.3-3n, 6.2.7.10-3n, 6.4.1.0-3n, 6.5.1.9-4n
SonicOSv versions: 6.5.0.2-8v_RC363 (VMWARE), 6.5.0.2.8v_RC367 (AZURE), 6.5.0.2.8v_RC368 (AWS), 6.5.0.2.8v_RC366 (HYPER_V)

Exploitation Mechanism

The vulnerability can be exploited by an authenticated read-only admin to gain unauthorized elevated permissions in the configuration mode.

Mitigation and Prevention

Protect your systems from potential exploitation with these mitigation strategies.

Immediate Steps to Take

Apply security patches provided by SonicWall promptly.
Monitor system logs for any unauthorized access attempts.
Restrict access to critical system configurations.

Long-Term Security Practices

Regularly update and patch your SonicOS and SonicOSv installations.
Conduct security training for system administrators to recognize and respond to unauthorized access attempts.

Patching and Updates

Stay informed about security updates and patches released by SonicWall.
Implement a robust patch management process to ensure timely application of security fixes.