CVE-2019-6584 Security feature bypass in SIEMENS LOGO!8

High 8.8 Published Updated

Attackers can reuse valid session IDs after user logout to maintain unauthorized access to the Siemens LOGO!8 web interface.

Exploited in the wild
Not known
Login needed
Not needed
Attackable
Over the internet
Victim action needed
A user has to click or open something
Fix
None listed

What is CVE-2019-6584?

CVE-2019-6584 is a high-severity vulnerability in SIEMENS LOGO!8, published on 12 Jun 2019. An attacker can exploit it over the internet without logging in, and only if a user opens a file or follows a link.

Official description

A vulnerability has been identified in SIEMENS LOGO!8 (6ED1052-xyyxx-0BA8 FS:01 to FS:06 / Firmware version V1.80.xx and V1.81.xx), SIEMENS LOGO!8 (6ED1052-xyy08-0BA0 FS:01 / Firmware version < V1.82.02). The integrated webserver does not invalidate the Session ID upon user logout. An attacker that successfully extracted a valid Session ID is able to use it even after the user logs out. The security vulnerability could be exploited by an attacker in a privileged network position who is able to read the communication between the affected device and the user or by an attacker who is able to obtain valid Session IDs through other means. The user must invoke a session to the affected device. At the time of advisory publication no public exploitation of this security vulnerability was known.

Weakness: CWE-613, CWE-384

Which versions are affected by CVE-2019-6584?

It affects 1 product.

Products include Siemens Logo\!8 Firmware.

How do I fix CVE-2019-6584?

No fix has been published for CVE-2019-6584 yet. Limit exposure of the affected software until one is available.

Is CVE-2019-6584 being exploited?

There is no known exploitation of CVE-2019-6584 in the wild and no public exploit code.

Sources

Also known as GHSA-ggxx-jp5j-2gq2.

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