CVE-2022-24043

Severity: medium (CVSS 5.3 v3.1)
Exploited in the wild: not listed in CISA KEV
EPSS: 1.1% probability of exploitation in the next 30 days
Public exploit or detection template: none known
Published: 2022-05-20 · updated 2026-06-17
Weakness: CWE-203

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 login functionality of the application fails to normalize the response times of login attempts performed with wrong usernames with the ones executed with correct usernames. A remote unauthenticated attacker could exploit this side-channel information to perform a username enumeration attack and identify valid usernames.

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

Get alerted when CVE-2022-24043 or the next vulnerability affects your stack