CVE-2021-28152 — CRITICAL (9.8)

Vulnerability Description

Hongdian H8922 3.0.5 devices have an undocumented feature that allows access to a shell as a superuser. To connect, the telnet service is used on port 5188 with the default credentials of root:superzxmn.

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
Hongdian	H8922 Firmware	3.0.5
Hongdian	H8922	-

Related Weaknesses (CWE)

CWE-287

References

http://en.hongdian.com/Products/Details/H8922ProductVendor Advisory
https://ssd-disclosure.com/ssd-advisory-hongdian-h8922-multiple-vulnerabilities/ExploitThird Party Advisory
http://en.hongdian.com/Products/Details/H8922ProductVendor Advisory
https://ssd-disclosure.com/ssd-advisory-hongdian-h8922-multiple-vulnerabilities/ExploitThird Party Advisory

FAQ

What is CVE-2021-28152?

CVE-2021-28152 is a vulnerability with a CVSS score of 9.8 (CRITICAL). Hongdian H8922 3.0.5 devices have an undocumented feature that allows access to a shell as a superuser. To connect, the telnet service is used on port 5188 with the default credentials of root:superzx...

How severe is CVE-2021-28152?

CVE-2021-28152 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-2021-28152?

Check the references section above for vendor advisories and patch information. Affected products include: Hongdian H8922 Firmware, Hongdian H8922.