CVE-2021-27167 — CRITICAL (9.8)

Q: How severe is CVE-2021-27167?

CVE-2021-27167 has been rated CRITICAL with a CVSS base score of 9.8/10. This is considered a critical vulnerability requiring immediate attention.

Q: Is there a patch for CVE-2021-27167?

Check the references section above for vendor advisories and patch information. Affected products include: Fiberhome Hg6245D Firmware, Fiberhome Hg6245D.

Vulnerability Description

An issue was discovered on FiberHome HG6245D devices through RP2613. There is a password of four hexadecimal characters for the admin account. These characters are generated in init_3bb_password in libci_adaptation_layer.so.

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
Fiberhome	Hg6245D Firmware	<= rp2613
Fiberhome	Hg6245D	-

Related Weaknesses (CWE)

CWE-798

References

https://pierrekim.github.io/blog/2021-01-12-fiberhome-ont-0day-vulnerabilities.hExploitThird Party Advisory
https://pierrekim.github.io/blog/2021-01-12-fiberhome-ont-0day-vulnerabilities.hExploitThird Party Advisory

FAQ

What is CVE-2021-27167?

CVE-2021-27167 is a vulnerability with a CVSS score of 9.8 (CRITICAL). An issue was discovered on FiberHome HG6245D devices through RP2613. There is a password of four hexadecimal characters for the admin account. These characters are generated in init_3bb_password in li...

How severe is CVE-2021-27167?

CVE-2021-27167 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-2021-27167?

Check the references section above for vendor advisories and patch information. Affected products include: Fiberhome Hg6245D Firmware, Fiberhome Hg6245D.