CVE-2017-2684 Auth bypass in SIMATIC Logon All versions < V1.5 SP3 Update 2
An attacker with valid username knowledge and access can bypass application-level authentication in Siemens SIMATIC Logon.
- 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-2017-2684?
CVE-2017-2684 is a critical authentication bypass vulnerability in SIMATIC Logon All versions < V1.5 SP3 Update 2, published on 22 Feb 2017. An attacker can exploit it over the internet without logging in, with no action from the victim.
Official description
Siemens SIMATIC Logon prior to V1.5 SP3 Update 2 could allow an attacker with knowledge of a valid user name, and physical or network access to the affected system, to bypass the application-level authentication.
Weakness: CWE-592
Which versions are affected by CVE-2017-2684?
It affects 1 product.
Products include Siemens Simatic Logon.
How do I fix CVE-2017-2684?
No fix has been published for CVE-2017-2684 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-2017-2684 being exploited?
There is no known exploitation of CVE-2017-2684 in the wild and no public exploit code.
Other vulnerabilities in SIMATIC Logon All versions < V1.5 SP3 Update 2
Sources
Also known as GHSA-h5v3-4rh5-mj9g.