CVE Vulnerabilities

CVE-2019-7347

Time-of-check Time-of-use (TOCTOU) Race Condition

Published: Feb 04, 2019 | Modified: Aug 24, 2020
CVSS 3.x
7.5
HIGH
Source:
NVD
CVSS:3.0/AV:N/AC:H/PR:L/UI:N/S:U/C:H/I:H/A:H
CVSS 2.x
6 MEDIUM
AV:N/AC:M/Au:S/C:P/I:P/A:P
RedHat/V2
RedHat/V3
Ubuntu

A Time-of-check Time-of-use (TOCTOU) Race Condition exists in ZoneMinder through 1.32.3 as a session remains active for an authenticated user even after deletion from the users table. This allows a nonexistent user to access and modify records (add/delete Monitors, Users, etc.).

Weakness

The product checks the state of a resource before using that resource, but the resource’s state can change between the check and the use in a way that invalidates the results of the check. This can cause the product to perform invalid actions when the resource is in an unexpected state.

Affected Software

Name Vendor Start Version End Version
Zoneminder Zoneminder * 1.32.3 (including)

Potential Mitigations

References