CVE-2016-7987 Denial of service in Siemens SICAM RTU Devices before 08
Attackers can cause a denial of service on Siemens SICAM RTU devices by sending specially crafted packets to port 2404/TCP, requiring a cold start to recover.
- 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-2016-7987?
CVE-2016-7987 is a high-severity denial of service vulnerability in Siemens SICAM RTU Devices before 08, published on 13 Feb 2017. An attacker can exploit it over the internet without logging in, with no action from the victim.
Official description
An issue was discovered in Siemens ETA4 firmware (all versions prior to Revision 08) of the SM-2558 extension module for: SICAM AK, SICAM TM 1703, SICAM BC 1703, and SICAM AK 3. Specially crafted packets sent to Port 2404/TCP could cause the affected device to go into defect mode. A cold start might be required to recover the system, a Denial-of-Service Vulnerability.
Weakness: CWE-19
Which versions are affected by CVE-2016-7987?
It affects 2 products.
Products include Siemens Eta2 Firmware, Siemens Eta4 Firmware.
How do I fix CVE-2016-7987?
No fix has been published for CVE-2016-7987 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-2016-7987 being exploited?
There is no known exploitation of CVE-2016-7987 in the wild and no public exploit code.
Sources
Also known as GHSA-q3wf-68hp-39q6.