CVE-2021-32593 Weak cryptography in Fortinet FortiWAN

What is CVE-2021-32593?

CVE-2021-32593 is a medium-severity vulnerability in Fortinet FortiWAN, published on 6 Apr 2022. An attacker can exploit it over the internet without logging in, with no action from the victim.

Official description

A use of a broken or risky cryptographic algorithm vulnerability [CWE-327] in the Dynamic Tunnel Protocol of FortiWAN before 4.5.9 may allow an unauthenticated remote attacker to decrypt and forge protocol communication messages.

Weakness: CWE-327

Which versions are affected by CVE-2021-32593?

It affects 1 product.

Products include Fortinet Fortiwan.

How do I fix CVE-2021-32593?

No fix has been published for CVE-2021-32593 yet. Limit exposure of the affected software until one is available.

Is CVE-2021-32593 being exploited?

There is no known exploitation of CVE-2021-32593 in the wild and no public exploit code.

Other vulnerabilities in Fortinet FortiWAN

• CVE-2021-26102 Path traversal in FortiWAN Critical 9.8
• CVE-2021-26114 SQL injection in Fortinet FortiWAN Critical 9.8
• CVE-2016-4965 Command injection in n/a High 8.8
• CVE-2023-44252 Auth bypass in FortiWAN High 8.6
• CVE-2023-44251 Path traversal in FortiWAN High 8.1

Sources

• CVE record
• NVD
• OSV
• GitHub advisory
• How this page is made

Also known as GHSA-r38h-c57m-fw47.