CVE-2021-28149

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.

CVSS v3.1 NVD

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

CVSS v2.0 NVD

4.0 MEDIUMAV:N/AC:L/Au:S/C:P/I:N/A:N

EPSS

15.92% chance of exploitation in the next 30 days, 97th percentile

Nuclei

medium · CWE-22

Published

2021-05-06

Updated

2024-08-03

Nuclei templates (1)

• projectdiscovery/nuclei-templates/blob/main/http/cves/2021/CVE-2021-28149.yaml

Exploit collections (1)

• 宏电 H8922 路由器中多个漏洞（CVE-2021-28149~52）.mdtzwlhack/Vulnerability

Security advisories

• http://en.hongdian.com/Products/Details/H8922
• https://ssd-disclosure.com/ssd-advisory-hongdian-h8922-multiple-vulnerabilities

References

• CVE Record
• NVD entry