CVE-2022-24040

Severity: medium (CVSS 6.5 v3.1)
Exploited in the wild: not listed in CISA KEV
EPSS: 0.9% probability of exploitation in the next 30 days
Public exploit or detection template: none known
Published: 2022-05-10 · updated 2026-06-17
Weakness: CWE-400

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.

Affected products

Siemens Desigo Dxr2 Firmware: before 01.21.142.5-22 — fixed in 01.21.142.5-22
Siemens Desigo Pxc3 Firmware: before 01.21.142.4-18 — fixed in 01.21.142.4-18
Siemens Desigo Pxc4 Firmware: before 02.20.142.10-10884 — fixed in 02.20.142.10-10884
Siemens Desigo Pxc5 Firmware: before 02.20.142.10-10884 — fixed in 02.20.142.10-10884

How to fix

Upgrade to a fixed version: Siemens Desigo Dxr2 Firmware 01.21.142.5-22; Siemens Desigo Pxc3 Firmware 01.21.142.4-18; Siemens Desigo Pxc4 Firmware 02.20.142.10-10884; Siemens Desigo Pxc5 Firmware 02.20.142.10-10884. Check the vendor advisory for mitigations.

References

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