CVE-2013-6920 Auth bypass in n/a
Remote attackers can bypass access restrictions on Siemens SINAMICS controllers by connecting to FTP or TELNET without authentication.
- 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-2013-6920?
CVE-2013-6920 is a critical authentication bypass vulnerability in n/a, published on 7 Dec 2013. An attacker can exploit it over the internet without logging in, with no action from the victim.
Official description
Siemens SINAMICS S/G controllers with firmware before 4.6.11 do not require authentication for FTP and TELNET sessions, which allows remote attackers to bypass intended access restrictions via TCP traffic to port (1) 21 or (2) 23.
Weakness: CWE-287
Which versions are affected by CVE-2013-6920?
It affects 14 products.
Products include Siemens Sinamics G110, Siemens Sinamics G110d, Siemens Sinamics G120, Siemens Sinamics G120c, Siemens Sinamics G120d, Siemens Sinamics G120p and 8 more.
How do I fix CVE-2013-6920?
No fix has been published for CVE-2013-6920 yet. Limit exposure of the affected software until one is available.
Upgrade, and rotate credentials and sessions that may have been exposed. More about Authentication bypass.
Is CVE-2013-6920 being exploited?
There is no known exploitation of CVE-2013-6920 in the wild and no public exploit code.
Sources
Also known as GHSA-p6gr-96p8-25fw.