#VU30145 Missing Authentication for Critical Function in Siemens products - CVE-2020-10038

Vulnerability identifier: #VU30145

Vulnerability risk: High

CVSSv4.0: 8.1 [CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N/E:U/U:Amber]

CVE-ID: CVE-2020-10038

CWE-ID: CWE-306

Exploitation vector: Network

Exploit availability: No

Vulnerable software:
SICAM MMU
Hardware solutions / Other hardware appliances
SICAM SGU
Hardware solutions / Other hardware appliances
SICAM T
Hardware solutions / Other hardware appliances

Vendor: Siemens

Description

The vulnerability allows a remote attacker to execute arbitrary commands on the target system.

The vulnerability exists due missing authentication for critical function. A remote attacker with access to the device’s web server can execute administrative commands without authentication.

Mitigation
Install updates from vendor's website.

Vulnerable software versions

SICAM MMU: before 2.05

SICAM SGU: All versions

SICAM T: before 2.18

---

External links
https://cert-portal.siemens.com/productcert/pdf/ssa-305120.pdf

---

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.