CVE-2021-28149

MEDIUM EXPLOITED NUCLEI

Hongdian H8922 3.0.5 Devices - Local File Inclusion

Title source: nuclei
STIX 2.1

Exploitation Summary

CVE-2021-28149 has been observed exploited in the wild (reported by VulnCheck KEV). A Nuclei detection template is also available.

Description

Hongdian H8922 3.0.5 devices allow Directory Traversal. The /log_download.cgi log export handler does not validate user input and allows a remote attacker with minimal privileges to download any file from the device by substituting ../ (e.g., ../../etc/passwd) This can be carried out with a web browser by changing the file name accordingly. Upon visiting log_download.cgi?type=../../etc/passwd and logging in, the web server will allow a download of the contents of the /etc/passwd file.

Nuclei Templates (1)

Hongdian H8922 3.0.5 Devices - Local File Inclusion
MEDIUMby gy741

References (2)

Core 2
Core References
Product, Vendor Advisory x_refsource_misc
http://en.hongdian.com/Products/Details/H8922

Scores

CVSS v3 6.5
EPSS 0.1375
EPSS Percentile 96.0%
Attack Vector NETWORK
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:N

Details

VulnCheck KEV 2021-10-07
CWE
CWE-22
Status published
Products (1)
hongdian/h8922_firmware 3.0.5
Published May 06, 2021
Tracked Since Feb 18, 2026