Vulnerability · Published May 6, 2021 · Assigned by mitre
CVE-2021-28149
Medium 6.5
In plain English
A medium-severity security flaw in the affected software. There are no confirmed reports of exploitation so far. The chance it is exploited in the next 30 days is estimated at 15.9% (higher than 97% of all known vulnerabilities). Ready-made attack tooling exists: Nuclei.
Official 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.
Affected products (as reported)
References
- http://en.hongdian.com/Products/Details/H8922 x_refsource_MISC
- https://ssd-disclosure.com/ssd-advisory-hongdian-h8922-multiple-vulnerabilities/ x_refsource_MISC