#VU63327 Authentication Bypass by Capture-replay in SICAM P850 and SICAM P855 - CVE-2022-29878

Vulnerability identifier: #VU63327

Vulnerability risk: Medium

CVSSv4.0: 4.8 [CVSS:4.0/AV:N/AC:L/AT:P/PR:N/UI:A/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N/E:U/U:Green]

CVE-ID: CVE-2022-29878

CWE-ID: CWE-294

Exploitation vector: Network

Exploit availability: No

Vulnerable software:
SICAM P850
Hardware solutions / Firmware
SICAM P855
Hardware solutions / Firmware

Vendor: Siemens

Description

The vulnerability allows a remote attacker to bypass authentication process.

The vulnerability exists due to the affected devices use a limited range for challenges that are sent during the unencrypted challenge-response communication. A remote attacker can access the management interface of the device.

Mitigation
Install updates from vendor's website.

Vulnerable software versions

SICAM P850: before 3.00

SICAM P855: before 3.00

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External links
https://cert-portal.siemens.com/productcert/txt/ssa-165073.txt

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Q & A

Can this vulnerability be exploited remotely?

Yes. This vulnerability can be exploited by a remote non-authenticated attacker via the Internet.

Is there known malware, which exploits this vulnerability?

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