CVE-2022-33137 Auth bypass in SIMATIC MV540 H
Authenticated attackers can hijack user sessions due to improper session invalidation on logout in Siemens SIMATIC MV series devices.
- Exploited in the wild
- Not known
- Login needed
- Any signed-in user
- Attackable
- Over the internet
- Victim action needed
- A user has to click or open something
- Fix
- None listed
What is CVE-2022-33137?
CVE-2022-33137 is a high-severity authentication bypass vulnerability in Siemens SIMATIC MV540 H, published on 12 Jul 2022. Any signed-in user can exploit it over the network, and only if a user opens a file or follows a link.
Official description
A vulnerability has been identified in SIMATIC MV540 H (All versions < V3.3), SIMATIC MV540 S (All versions < V3.3), SIMATIC MV550 H (All versions < V3.3), SIMATIC MV550 S (All versions < V3.3), SIMATIC MV560 U (All versions < V3.3), SIMATIC MV560 X (All versions < V3.3). The web session management of affected devices does not invalidate session ids in certain logout scenarios. This could allow an authenticated remote attacker to hijack other users' sessions.
Weakness: CWE-613
Which versions are affected by CVE-2022-33137?
It affects 6 products.
Products include Siemens Simatic Mv540 H Firmware, Siemens Simatic Mv540 S Firmware, Siemens Simatic Mv550 H Firmware, Siemens Simatic Mv550 S Firmware, Siemens Simatic Mv560 U Firmware, Siemens Simatic Mv560 X Firmware.
How do I fix CVE-2022-33137?
No fix has been published for CVE-2022-33137 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-2022-33137 being exploited?
There is no known exploitation of CVE-2022-33137 in the wild and no public exploit code.
Other vulnerabilities in Siemens SIMATIC MV540 H
Sources
Also known as GHSA-jp3h-x882-5crh.