CVE-2021-40407 — HIGH (7.2)

Vulnerability Description

An OS command injection vulnerability exists in the device network settings functionality of reolink RLC-410W v3.0.0.136_20121102. At [1] or [2], based on DDNS type, the ddns->domain variable, that has the value of the domain parameter provided through the SetDdns API, is not validated properly. This would lead to an OS command injection. An attacker can send an HTTP request to trigger this vulnerability.

CVSS Score

7.2

HIGH

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

Attack Vector

NETWORK

Attack Complexity

LOW

Privileges Required

HIGH

User Interaction

NONE

Scope

UNCHANGED

Confidentiality

HIGH

Integrity

HIGH

Availability

HIGH

Affected Products

Vendor	Product	Versions
Reolink	Rlc-410W Firmware	3.0.0.136_20121102
Reolink	Rlc-410W	-

Related Weaknesses (CWE)

CWE-78

References

https://talosintelligence.com/vulnerability_reports/TALOS-2021-1424ExploitThird Party Advisory
https://talosintelligence.com/vulnerability_reports/TALOS-2021-1424ExploitThird Party Advisory
https://www.cisa.gov/known-exploited-vulnerabilities-catalog?field_cve=CVE-2021-US Government Resource

FAQ

What is CVE-2021-40407?

CVE-2021-40407 is a vulnerability with a CVSS score of 7.2 (HIGH). An OS command injection vulnerability exists in the device network settings functionality of reolink RLC-410W v3.0.0.136_20121102. At [1] or [2], based on DDNS type, the ddns->domain variable, that ha...

How severe is CVE-2021-40407?

CVE-2021-40407 has been rated HIGH with a CVSS base score of 7.2/10. Review the CVSS metrics above for detailed severity breakdown.

Is there a patch for CVE-2021-40407?

Check the references section above for vendor advisories and patch information. Affected products include: Reolink Rlc-410W Firmware, Reolink Rlc-410W.