Vulnerabilities > CVE-2021-36181 - Race Condition vulnerability in Fortinet Fortiportal

CVSS 3.5 - LOW

Attack vector

NETWORK

Attack complexity

MEDIUM

Privileges required

SINGLE

Confidentiality impact

NONE

Integrity impact

PARTIAL

Availability impact

NONE

network

fortinet

CWE-362

NVD

Published: 2021-11-02

Updated: 2021-11-04

Summary

A concurrent execution using shared resource with improper Synchronization vulnerability ('Race Condition') in the customer database interface of FortiPortal before 6.0.6 may allow an authenticated, low-privilege user to bring the underlying database data into an inconsistent state via specific coordination of web requests.

Vulnerable Configurations

Part	Description	Count
Application	Fortinet Fortinet Fortiportal 4.0.0 Fortinet Fortiportal 4.0.1 Fortinet Fortiportal 4.0.2 Fortinet Fortiportal 4.0.3 Fortinet Fortiportal 4.0.4 Fortinet Fortiportal 4.1.0 Fortinet Fortiportal 4.1.1 Fortinet Fortiportal 4.1.2 Fortinet Fortiportal 4.2.0 Fortinet Fortiportal 4.2.1 Fortinet Fortiportal 4.2.2 Fortinet Fortiportal 4.2.3 Fortinet Fortiportal 4.2.4 Fortinet Fortiportal 5.0.0 Fortinet Fortiportal 5.0.1 Fortinet Fortiportal 5.0.2 Fortinet Fortiportal 5.0.3 Fortinet Fortiportal 5.1.0 Fortinet Fortiportal 5.1.1 Fortinet Fortiportal 5.1.2 Fortinet Fortiportal 5.2.0 Fortinet Fortiportal 5.2.1 Fortinet Fortiportal 5.2.2 Fortinet Fortiportal 5.2.3 Fortinet Fortiportal 5.2.4 Fortinet Fortiportal 5.2.5 Fortinet Fortiportal 5.2.6 Fortinet Fortiportal 5.2.7 Fortinet Fortiportal 5.3.0 Fortinet Fortiportal 5.3.1 Fortinet Fortiportal 5.3.2 Fortinet Fortiportal 5.3.3 Fortinet Fortiportal 5.3.4 Fortinet Fortiportal 5.3.5 Fortinet Fortiportal 5.3.6 Fortinet Fortiportal 5.3.7 Fortinet Fortiportal 6.0.0 Fortinet Fortiportal 6.0.1 Fortinet Fortiportal 6.0.2 Fortinet Fortiportal 6.0.3 Fortinet Fortiportal 6.0.4 Fortinet Fortiportal 6.0.5	42

Common Weakness Enumeration (CWE)

CWE-362 - Concurrent Execution using Shared Resource with Improper Synchronization ('Race Condition')

Common Attack Pattern Enumeration and Classification (CAPEC)

Leveraging Race Conditions
This attack targets a race condition occurring when multiple processes access and manipulate the same resource concurrently and the outcome of the execution depends on the particular order in which the access takes place. The attacker can leverage a race condition by "running the race", modifying the resource and modifying the normal execution flow. For instance a race condition can occur while accessing a file, the attacker can trick the system by replacing the original file with his version and cause the system to read the malicious file.
Leveraging Time-of-Check and Time-of-Use (TOCTOU) Race Conditions
This attack targets a race condition occurring between the time of check (state) for a resource and the time of use of a resource. The typical example is the file access. The attacker can leverage a file access race condition by "running the race", meaning that he would modify the resource between the first time the target program accesses the file and the time the target program uses the file. During that period of time, the attacker could do something such as replace the file and cause an escalation of privilege.

References

https://fortiguard.com/advisory/FG-IR-21-102