CVE-2021-43517 — CRITICAL (9.8)

Vulnerability Description

FOSCAM Camera FI9805E with firmware V4.02.R12.00018510.10012.143900.00000 contains a backdoor that opens Telnet port when special command is sent on port 9530.

CVSS Score

9.8

CRITICAL

CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H

Attack Vector

NETWORK

Attack Complexity

LOW

Privileges Required

NONE

User Interaction

NONE

Scope

UNCHANGED

Confidentiality

HIGH

Integrity

HIGH

Availability

HIGH

Affected Products

Vendor	Product	Versions
Foscam	Fi9805E Firmware	4.02.r12.00018510.10012.143900.00000
Foscam	Fi9805E	-

References

https://habr.com/ru/post/486856/ExploitThird Party Advisory
https://habr.com/ru/post/486856/ExploitThird Party Advisory

FAQ

What is CVE-2021-43517?

CVE-2021-43517 is a vulnerability with a CVSS score of 9.8 (CRITICAL). FOSCAM Camera FI9805E with firmware V4.02.R12.00018510.10012.143900.00000 contains a backdoor that opens Telnet port when special command is sent on port 9530.

How severe is CVE-2021-43517?

CVE-2021-43517 has been rated CRITICAL with a CVSS base score of 9.8/10. This is considered a critical vulnerability requiring immediate attention.

Is there a patch for CVE-2021-43517?

Check the references section above for vendor advisories and patch information. Affected products include: Foscam Fi9805E Firmware, Foscam Fi9805E.