VulnerabilityModified
CVE-2021-28152
Hongdian H8922 3.0.5 devices have an undocumented feature that allows access to a shell as a superuser.
CRITICAL 9.8EPSS 5.18%
Does this matter?
High impact if exploited, but EPSS currently rates exploitation as unlikely (5.18%). Schedule it in the normal patch cycle and watch for a rise in EPSS or a public exploit.
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 3.1
- 9.8 CRITICALCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
- EPSS
- 5.18% probability · 92th percentile
- CISA KEV
- Not listed
- Weakness
- CWE-287
- Affected
- hongdian/h8922 firmware
- Source
- cve@mitre.org
References
- http://en.hongdian.com/Products/Details/H8922Product, Vendor Advisory
- https://ssd-disclosure.com/ssd-advisory-hongdian-h8922-multiple-vulnerabilities/Exploit, Third Party Advisory
- http://en.hongdian.com/Products/Details/H8922Product, Vendor Advisory
- https://ssd-disclosure.com/ssd-advisory-hongdian-h8922-multiple-vulnerabilities/Exploit, Third Party Advisory
Source: NVD record, EPSS from FIRST.org, KEV from CISA. Refreshed daily.