CVE-2019-18341 Auth bypass in Control Center Server (CCS)

Medium 5.3 Published Updated

Remote attackers can bypass SFTP authentication to read sensitive configuration data from the Siemens Control Center Server.

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-2019-18341?

CVE-2019-18341 is a medium-severity authentication bypass vulnerability in Siemens Control Center Server (CCS), published on 12 Dec 2019. An attacker can exploit it over the internet without logging in, 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) contains an authentication bypass vulnerability.

A remote attacker with network access to the CCS server could exploit this vulnerability to read data from the EDIR directory (for example, the list of all configured stations).

Weakness: CWE-287

Which versions are affected by CVE-2019-18341?

It affects 2 products.

Products include Siemens Sinvr 3 Central Control Server, Siemens Sinvr 3 Video Server.

How do I fix CVE-2019-18341?

No fix has been published for CVE-2019-18341 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-2019-18341 being exploited?

There is no known exploitation of CVE-2019-18341 in the wild and no public exploit code.

Sources

Also known as GHSA-g28c-477m-v5p9.

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