A vulnerability has been identified in Desigo DXR2 (All versions < V01.21.142.5-22), Desigo…
CVE-2022-24042 is a critical-severity vulnerability in Desigo DXR2 from Siemens, with a CVSS 3.1 base score of 9.1 out of 10. It can be exploited remotely over the network by an unauthenticated attacker, without any action from a user. Affected Desigo DXR2 versions: All versions < V01.21.142.5-22. The record does not name a fixed version, so check the vendor advisory. There is no confirmed exploitation so far. EPSS estimates a 0.98% chance of exploitation within 30 days, higher than 63% of scored CVEs.
Critical severity: a successful attack would have severe impact.
What to do
- Update Desigo Pxc5 Firmware to 02.20.142.10-10884 or a later version.
- Update Desigo Pxc4 Firmware to 02.20.142.10-10884 or a later version.
- Update Desigo Pxc3 Firmware to 01.21.142.4-18 or a later version.
- Read the advisory on cert-portal.siemens.com for workarounds and exact fixed builds.
- Until you can update, restrict network access to the affected service so it is not reachable from untrusted networks.
Affected products and versions
| Vendor | Product | Affected versions | Fixed in |
|---|---|---|---|
| Siemens | Desigo DXR2 | All versions < V01.21.142.5-22 | Not stated |
| Siemens | Desigo PXC3 | All versions < V01.21.142.4-18 | Not stated |
| Siemens | Desigo PXC4 | All versions < V02.20.142.10-10884 | Not stated |
| Siemens | Desigo PXC5 | All versions < V02.20.142.10-10884 | Not stated |
| Siemens | Desigo Pxc5 Firmware | before 02.20.142.10-10884 | 02.20.142.10-10884 |
| Siemens | Desigo Pxc4 Firmware | before 02.20.142.10-10884 | 02.20.142.10-10884 |
| Siemens | Desigo Pxc3 Firmware | before 01.21.142.4-18 | 01.21.142.4-18 |
| Siemens | Desigo Dxr2 Firmware | before 01.21.142.5-22 | 01.21.142.5-22 |
Version data comes from the organisation that assigned the CVE. Confirm against the vendor advisory before deciding you are unaffected.
How the severity score breaks down
- Attack vector
- NetworkCan be exploited remotely over a network, including the internet.
- Attack complexity
- LowNo special conditions are needed; the attack works reliably.
- Privileges required
- NoneNo account or login is needed.
- User interaction
- NoneNo action by a victim is required.
- Scope
- UnchangedImpact stays within the vulnerable component.
- Confidentiality
- HighAll data handled by the component can be read.
- Integrity
- HighData or code can be modified at will.
- Availability
- NoneAvailability is not affected.
Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:N. Scored by NVD.
| Scoring system | Score | Severity | Scored by |
|---|---|---|---|
| CVSS 3.1 | 9.1 | Critical | NVD |
| CVSS 2.0 | 6.4 | Medium | NVD |
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 returns an AuthToken that does not expire at the defined auto logoff delay timeout. An attacker could be able to capture this token and re-use old session credentials or session IDs for authorization.
Source: the CVE record as published by its numbering authority, via NVD and CVE.org.
Timeline
- CVE record published.
- Record last changed materially (score, affected products, status or references).
References
Other vulnerabilities in Desigo DXR2
- 8.1 High severity
PHP Stale Internal Request-State Exploited
- 9.8 Critical severity
PHP Memory Corruption Exploited
- 7.5 High severity
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