SB2021111613 - Multiple vulnerabilities in Fortinet FortiPortal

Description

This security bulletin contains information about 2 vulnerabilities.

1) Uncontrolled Memory Allocation (CVE-ID: CVE-2021-36174)

CWE-ID: CWE-789 - Uncontrolled Memory Allocation

CVSSv4: CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:A/VC:N/VI:N/VA:L/SC:N/SI:N/SA:N/E:U/U:Clear

The vulnerability allows a remote attacker to perform a denial of service (DoS) attack.

The vulnerability exists due to improper allocation of memory in the license verification function. A remote attacker can use a specially crafted license blobs and cause a denial of service condition on the target system.

2) Race condition (CVE-ID: CVE-2021-36181)

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

CVSSv4: CVSS:4.0/AV:N/AC:L/AT:P/PR:L/UI:N/VC:N/VI:L/VA:N/SC:N/SI:N/SA:N/E:U/U:Clear

The vulnerability allows a remote attacker to compromise the system.

The vulnerability exists due to a race condition in the customer database interface. A remote authenticated attacker can bring the underlying database data into an inconsistent state via specific coordination of web requests.

Remediation

Install update from vendor's website.

References

• https://fortiguard.com/advisory/FG-IR-21-109
• https://fortiguard.com/advisory/FG-IR-21-102