CVE-2019-6553 Memory corruption in RSLinx Classic
An attacker can execute arbitrary code via a stack-based buffer overflow in RSLinx Classic caused by improper input validation in Forward Open requests.
- Exploited in the wild
- Not known
- Login needed
- Not needed
- Attackable
- Over the internet
- Victim action needed
- Not needed
- Fix
- None listed
What is CVE-2019-6553?
CVE-2019-6553 is a critical memory corruption vulnerability in Rockwell Automation RSLinx Classic, published on 4 Apr 2019. An attacker can exploit it over the internet without logging in, with no action from the victim.
Official description
A vulnerability was found in Rockwell Automation RSLinx Classic versions 4.10.00 and prior. An input validation issue in a .dll file of RSLinx Classic where the data in a Forward Open service request is passed to a fixed size buffer, allowing an attacker to exploit a stack-based buffer overflow condition.
Which versions are affected by CVE-2019-6553?
It affects 1 product.
Products include Rockwellautomation Rslinx.
How do I fix CVE-2019-6553?
No fix has been published for CVE-2019-6553 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-2019-6553 being exploited?
There is no known exploitation of CVE-2019-6553 in the wild and no public exploit code.
Other vulnerabilities in Rockwell Automation RSLinx Classic
Sources
Also known as GHSA-2q9x-jr84-x65p.