CVE-2022-32140 CODESYS runtime system prone to denial of service due to buffer copy
A remote attacker can cause a denial of service in CODESYS runtime systems by sending a crafted request that triggers a buffer overflow.
- Exploited in the wild
- Not known
- Login needed
- Any signed-in user
- Attackable
- Over the internet
- Victim action needed
- Not needed
- Fix
- None listed
What is CVE-2022-32140?
CVE-2022-32140 is a medium-severity denial of service vulnerability in CODESYS PLCWinNT, published on 24 Jun 2022. Any signed-in user can exploit it over the network, with no action from the victim.
Official description
Multiple CODESYS products are affected to a buffer overflow.A low privileged remote attacker may craft a request, which can cause a buffer copy without checking the size of the service, resulting in a denial-of-service condition. User Interaction is not required.
Weakness: CWE-120
Which versions are affected by CVE-2022-32140?
It affects 2 products.
Products include Codesys Plcwinnt, Codesys Runtime Toolkit.
How do I fix CVE-2022-32140?
No fix has been published for CVE-2022-32140 yet. Limit exposure of the affected software until one is available.
Upgrade, then put limits on request size, rate and nesting depth so one client cannot exhaust the service. More about Denial of service.
Is CVE-2022-32140 being exploited?
There is no known exploitation of CVE-2022-32140 in the wild and no public exploit code.
Other vulnerabilities in CODESYS PLCWinNT
- CVE-2022-31806 Insecure default settings in CODESYS Runtime Toolkit 32 bit full and CODESYS PLCWinNT
- CVE-2022-32137 CODESYS Runtime System prone to heap based buffer overflow
- CVE-2022-32138 CODESYS runtime system prone to denial of service due to Unexpected Sign Extension
- CVE-2022-32143 CODESYS runtime system prone to directory acces
- CVE-2022-1965 CODESYS runtime system prone to file deletion due to improper error handling
Sources
Also known as GHSA-383r-p8gw-prwq.