Missing Authorization in Siemens SCALANCE and RUGGEDCOM Products

1) Missing Authorization

EUVDB-ID: #VU68289

Risk: Medium

CVSSv3.1: 7.7 [CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H/E:U/RL:O/RC:C]

CVE-ID: CVE-2022-31765

CWE-ID: CWE-862 - Missing Authorization

Exploit availability: No

Description

The vulnerability allows a remote attacker to bypass authorization checks.

The vulnerability exists due to the affected device does not properly authorize the change password function of the web interface. A remote user can bypass authorization and escalate their privileges.

Mitigation

Install updates from vendor's website.

Vulnerable software versions

SCALANCE SC622-2C: All versions

SCALANCE SC632-2C: All versions

SCALANCE SC636-2C: All versions

SCALANCE SC642-2C: All versions

SCALANCE SC646-2C: All versions

SCALANCE W721-1 RJ45: All versions

SCALANCE W722-1 RJ45: All versions

SCALANCE W734-1 RJ45: All versions

SCALANCE W738-1 M12: All versions

SCALANCE W748-1 M12: All versions

SCALANCE W748-1 RJ45: All versions

SCALANCE W761-1 RJ45: All versions

SCALANCE W774-1 M12 EEC: All versions

SCALANCE W774-1 RJ45: All versions

SCALANCE W778-1 M12: All versions

SCALANCE W778-1 M12 EEC: All versions

SCALANCE W786-1 RJ45: All versions

SCALANCE W786-2 RJ45: All versions

SCALANCE W786-2 SFP: All versions

SCALANCE W786-2IA RJ45: All versions

SCALANCE W788-1 M12: All versions

SCALANCE W788-1 RJ45: All versions

SCALANCE W788-2 M12: All versions

SCALANCE W788-2 M12 EEC: All versions

SCALANCE W788-2 RJ45: All versions

SCALANCE W1748-1 M12: All versions

SCALANCE W1788-1 M12: All versions

SCALANCE W1788-2 EEC M12: All versions

SCALANCE W1788-2 M12: All versions

SCALANCE W1788-2IA M12: All versions

SCALANCE WAM763-1: All versions

SCALANCE WAM766-1: All versions

SCALANCE WAM766-1 6GHz: All versions

SCALANCE WAM766-1 EEC: All versions

SCALANCE WUM763-1: All versions

SCALANCE WUM766-1: All versions

SCALANCE WUM766-1 6GHz: All versions

SCALANCE XB205-3: All versions

SCALANCE XB205-3LD: All versions

SCALANCE XB208: All versions

SCALANCE XB213-3: All versions

SCALANCE XB213-3LD: All versions

SCALANCE XB216: All versions

SCALANCE XC206-2: All versions

SCALANCE XC206-2G PoE: All versions

SCALANCE XC206-2G PoE EEC: All versions

SCALANCE XC206-2SFP: All versions

SCALANCE XC206-2SFP EEC: All versions

SCALANCE XC206-2SFP G: All versions

SCALANCE XC206-2SFP G EEC: All versions

SCALANCE XC208: All versions

SCALANCE XC208EEC: All versions

SCALANCE XC208G: All versions

SCALANCE XC208G EEC: All versions

SCALANCE XC208G PoE: All versions

SCALANCE XC216: All versions

SCALANCE XC216-3G PoE: All versions

SCALANCE XC216-4C: All versions

SCALANCE XC216-4C G: All versions

SCALANCE XC216-4C G EEC: All versions

SCALANCE XC216EEC: All versions

SCALANCE XC224: All versions

SCALANCE XC224-4C G: All versions

SCALANCE XC224-4C G EEC: All versions

SCALANCE XF204: All versions

SCALANCE XF204 DNA: All versions

SCALANCE XF204-2BA: All versions

SCALANCE XF204-2BA DNA: All versions

SCALANCE XM408-4C: All versions

SCALANCE XM408-8C: All versions

SCALANCE XM416-4C: All versions

SCALANCE XP208: All versions

SCALANCE XP208EEC: All versions

SCALANCE XP208PoE EEC: All versions

SCALANCE XP216: All versions

SCALANCE XP216EEC: All versions

SCALANCE XP216POE EEC: All versions

SCALANCE XR324WG: All versions

SCALANCE XR326-2C PoE WG: All versions

SCALANCE XR328-4C WG: All versions

SCALANCE XR524-8C: All versions

SCALANCE XR526-8C: All versions

SCALANCE XR528-6M: All versions

SCALANCE XR552-12M: All versions

SIPLUS NET SCALANCE XC206-2: All versions

SIPLUS NET SCALANCE XC206-2SFP: All versions

SIPLUS NET SCALANCE XC208: All versions

SIPLUS NET SCALANCE XC216-4C: All versions

RUGGEDCOM RM1224 LTE: before 7.1.2

SCALANCE M804PB: before 7.1.2

SCALANCE M812-1 ADSL-Router (Annex A): before 7.1.2

SCALANCE M812-1 ADSL-Router (Annex B): before 7.1.2

SCALANCE M816-1 ADSL-Router (Annex A): before 7.1.2

SCALANCE M816-1 ADSL-Router (Annex B): before 7.1.2

SCALANCE M826-2 SHDSL-Router: before 7.1.2

SCALANCE M874-2: before 7.1.2

SCALANCE M874-3: before 7.1.2

SCALANCE M876-3: before 7.1.2

SCALANCE M876-4: before 7.1.2

SCALANCE MUM853-1: before 7.1.2

SCALANCE MUM856-1: before 7.1.2

External links

http://cert-portal.siemens.com/productcert/pdf/ssa-552702.pdf

Q & A

Can this vulnerability be exploited remotely?

Yes. This vulnerability can be exploited by a remote authenticated user via the Internet.

How the attacker can exploit this vulnerability?

The attacker would have to send a specially crafted request to the affected device in order to exploit this vulnerability.

Is there known malware, which exploits this vulnerability?

No. We are not aware of malware exploiting this vulnerability.