CVE-2022-24040 Denial of service in Desigo DXR2
An attacker with user privileges can cause a denial of service by setting an excessively high PBKDF2 cost factor, leading to CPU exhaustion during login attempts.
- 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-2022-24040?
CVE-2022-24040 is a medium-severity denial of service vulnerability in Siemens Desigo DXR2, published on 10 May 2022. Any signed-in user can exploit it over the network, with no action from the victim.
Official description
A vulnerability has been identified in Desigo DXR2 (All versions < V01.21.142.5-22), Desigo PXC3 (All versions < V01.21.142.4-18), Desigo PXC4 (All versions < V02.20.142.10-10884), Desigo PXC5 (All versions < V02.20.142.10-10884). The web application fails to enforce an upper bound to the cost factor of the PBKDF2 derived key during the creation or update of an account. An attacker with the user profile access privilege could cause a denial of service (DoS) condition through CPU consumption by setting a PBKDF2 derived key with a remarkably high cost effort and then attempting a login to the so-modified account.
Weakness: CWE-400
Which versions are affected by CVE-2022-24040?
It affects 4 products.
Products include Siemens Desigo Dxr2 Firmware, Siemens Desigo Pxc3 Firmware, Siemens Desigo Pxc4 Firmware, Siemens Desigo Pxc5 Firmware.
How do I fix CVE-2022-24040?
No fix has been published for CVE-2022-24040 yet. Limit exposure of the affected software until one is available.
Upgrade, then put limits on request size, rate and nesting depth so one client cannot exhaust the service. More about Denial of service.
Is CVE-2022-24040 being exploited?
There is no known exploitation of CVE-2022-24040 in the wild and no public exploit code.
Other vulnerabilities in Siemens Desigo DXR2
Sources
Also known as GHSA-gvmv-rhmr-mw99.