CVE-2022-33871 Memory corruption in FortiWeb
A privileged attacker can execute arbitrary code via crafted CLI backup operations in FortiWeb due to a stack-based buffer overflow.
- Exploited in the wild
- Not known
- Login needed
- An administrator
- Attackable
- Over the internet
- Victim action needed
- Not needed
- Fix
- None listed
What is CVE-2022-33871?
CVE-2022-33871 is a medium-severity memory corruption vulnerability in Fortinet Fortiweb, published on 16 Feb 2023. An attacker needs administrator access to exploit it, with no action from the victim.
Official description
A stack-based buffer overflow vulnerability [CWE-121] in FortiWeb version 7.0.1 and earlier, 6.4 all versions, version 6.3.19 and earlier may allow a privileged attacker to execute arbitrary code or commands via specifically crafted CLI `execute backup-local rename` and `execute backup-local show` operations.
Which versions are affected by CVE-2022-33871?
It affects 1 product.
Products include Fortinet Fortiweb.
How do I fix CVE-2022-33871?
No fix has been published for CVE-2022-33871 yet. Limit exposure of the affected software until one is available.
Upgrade to the fixed version. Memory-safe languages, compiler hardening and fuzzing prevent most new cases. More about Memory corruption.
Is CVE-2022-33871 being exploited?
There is no known exploitation of CVE-2022-33871 in the wild and no public exploit code.
Other vulnerabilities in Fortinet Fortiweb
Sources
Also known as GHSA-w5f6-wm5p-vwm3.