#VU55392 Stack-based buffer overflow in G-Cam E2 and G-Code - CVE-2021-33549

Vulnerability identifier: #VU55392

Vulnerability risk: Low

CVSSv4.0: 8.6 [CVSS:4.0/AV:N/AC:L/AT:N/PR:H/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N/E:A/U:Clear]

CVE-ID: CVE-2021-33549

CWE-ID: CWE-121

Exploitation vector: Network

Exploit availability: Yes

Vulnerable software:
G-Cam E2
Hardware solutions / Firmware
G-Code
Hardware solutions / Firmware

Vendor: GEUTEBRÜCK GmbH

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 action parameter. 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.

This vulnerability affects the following devices:

• E2 Series cameras – G-CAM
  • EBC-21xx
  • EFD-22xx
  • ETHC-22xx
  • EWPC-22xx
• Encoder G-Code
  • EEC-2xx
  • EEN-20xx

Mitigation
Install updates from vendor's website.

Vulnerable software versions

G-Cam E2: 1.12.0.27 - 1.12.14.5

G-Code: 1.12.0.27 - 1.12.14.5

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External links
https://ics-cert.us-cert.gov/advisories/icsa-21-208-03

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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. However, a fully functional exploit for this vulnerability is available.