CVE-2019-18342 Path traversal in Control Center Server (CCS)
Unauthenticated attackers can read or delete arbitrary files on Siemens Control Center Server via its SFTP service due to improper capability restrictions.
- Exploited in the wild
- Not known
- Login needed
- Any signed-in user
- Attackable
- Over the internet
- Victim action needed
- Not needed
- Fix
- None listed
What is CVE-2019-18342?
CVE-2019-18342 is a critical path traversal vulnerability in Siemens Control Center Server (CCS), published on 12 Dec 2019. Any signed-in user can exploit it over the network, with no action from the victim.
Official description
A vulnerability has been identified in Control Center Server (CCS) (All versions < V1.5.0). The SFTP service (default port 22/tcp) of the Control Center Server (CCS) does not properly limit its capabilities to the specified purpose.
In conjunction with CVE-2019-18341, an unauthenticated remote attacker with network access to the CCS server could exploit this vulnerability to read or delete arbitrary files, or access other resources on the same server.
Weakness: CWE-749
Which versions are affected by CVE-2019-18342?
It affects 1 product.
Products include Siemens Control Center Server.
How do I fix CVE-2019-18342?
No fix has been published for CVE-2019-18342 yet. Limit exposure of the affected software until one is available.
Upgrade, and resolve every user-supplied path against an allowed base folder before opening it. More about Path traversal.
Is CVE-2019-18342 being exploited?
There is no known exploitation of CVE-2019-18342 in the wild and no public exploit code.
Sources
Also known as GHSA-7jpc-wcv3-h3mc.