CVE-2014-2256 Denial of service in n/a
Remote attackers can cause denial of service in Siemens SIMATIC S7-1200 PLCs by sending crafted ISO-TSAP packets, requiring firmware upgrades.
- 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-2014-2256?
CVE-2014-2256 is a high-severity denial of service vulnerability in n/a, published on 22 Mar 2014. An attacker can exploit it over the internet without logging in, with no action from the victim.
Official description
Siemens SIMATIC S7-1200 CPU PLC devices with firmware before 4.0 allow remote attackers to cause a denial of service (defect-mode transition) via crafted ISO-TSAP packets, a different vulnerability than CVE-2014-2257.
Weakness: CWE-399
Which versions are affected by CVE-2014-2256?
It affects 6 products.
Products include Siemens Simatic S7 Cpu-1211c, Siemens Simatic S7 Cpu 1200 Firmware, Siemens Simatic S7 Cpu 1212c, Siemens Simatic S7 Cpu 1214c, Siemens Simatic S7 Cpu 1215c, Siemens Simatic S7 Cpu 1217c.
How do I fix CVE-2014-2256?
No fix has been published for CVE-2014-2256 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-2014-2256 being exploited?
There is no known exploitation of CVE-2014-2256 in the wild and no public exploit code.
Other vulnerabilities in n/a
Sources
Also known as GHSA-gch9-p5m3-r2vf.