Remote code execution in Siemens POWER METER SICAM Q100

1) Stack-based buffer overflow

EUVDB-ID: #VU59225

Risk: Low

CVSSv3.1: 7.9 [CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:C/C:H/I:H/A:H/E:U/RL:O/RC:C]

CVE-ID: CVE-2021-44165

CWE-ID: CWE-121 - Stack-based buffer overflow

Exploit availability: No

Description

The vulnerability allows a remote user to execute arbitrary code on the target system.

The vulnerability exists due to a boundary error in the web application. A remote administrator can trigger stack-based buffer overflow and execute arbitrary code on the target system.

Successful exploitation of this vulnerability may result in complete compromise of vulnerable system.

Mitigation

Install updates from vendor's website.

Vulnerable software versions

POWER METER SICAM Q100 (7KG9501-0AA01-0AA1): before 2.41

POWER METER SICAM Q100 (7KG9501-0AA01-2AA1): before 2.41

POWER METER SICAM Q100 (7KG9501-0AA31-0AA1): before 2.41

POWER METER SICAM Q100 (7KG9501-0AA31-2AA1): before 2.41

External links

http://cert-portal.siemens.com/productcert/pdf/ssa-496292.pdf

Q & A

Can this vulnerability be exploited remotely?

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

Is there known malware, which exploits this vulnerability?

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