Remote code execution in Foscam R2C IP camera

1) Time-of-check Time-of-use (TOCTOU) Race Condition

EUVDB-ID: #VU62586

Risk: Low

CVSSv3.1: 6.6 [CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:U/C:H/I:H/A:H/E:U/RL:U/RC:C]

CVE-ID: CVE-2022-28743

CWE-ID: CWE-367 - Time-of-check Time-of-use (TOCTOU) Race Condition

Exploit availability: No

Description

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

The vulnerability exists due to a race condition. A remote administrator can use a specially crafted firmware patch and execute arbitrary code on the target system.

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

Mitigation

Cybersecurity Help is currently unaware of any official solution to address this vulnerability.

Vulnerable software versions

R2C IP camera: 1.13.1.6 - 2.91.2.66

External links

http://www.trellix.com/en-us/about/newsroom/stories/threat-labs/keeping-a-critical-eye-on-iot-devices.html

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.