CVE-2019-7347 : Vulnerability Insights and Analysis

ZoneMinder version 1.32.3 has a Time-of-check Time-of-use (TOCTOU) Race Condition that allows unauthorized access and modification of records even after a user is deleted.

Understanding CVE-2019-7347

This CVE involves a security vulnerability in ZoneMinder version 1.32.3 that poses a risk of unauthorized access and modification of records.

What is CVE-2019-7347?

A Time-of-check Time-of-use (TOCTOU) Race Condition in ZoneMinder through 1.32.3 allows an active session for a deleted user, enabling unauthorized access and modification of records.

The Impact of CVE-2019-7347

This vulnerability permits unauthorized users to add or delete Monitors and Users, compromising the system's integrity and confidentiality.

Technical Details of CVE-2019-7347

ZoneMinder version 1.32.3 is affected by a TOCTOU Race Condition, leading to unauthorized access and modification of records.

Vulnerability Description

The issue arises when a user session remains active post-deletion from the users table, enabling unauthorized access and modification of records.

Affected Systems and Versions

Product: ZoneMinder
Vendor: N/A
Version: 1.32.3

Exploitation Mechanism

Unauthorized users can exploit this vulnerability to access and modify records, such as adding or deleting Monitors and Users.

Mitigation and Prevention

To address CVE-2019-7347, follow these steps:

Immediate Steps to Take

Update ZoneMinder to a patched version.
Monitor system logs for any suspicious activities.

Long-Term Security Practices

Regularly review and update user access permissions.
Conduct security audits to identify and address vulnerabilities.

Patching and Updates

Apply patches and updates provided by ZoneMinder to mitigate the TOCTOU Race Condition vulnerability.