CVE-2021-28149

moderate-risk
Published 2021-05-06

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.

Do I need to act?

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90.7% chance of exploitation in next 30 days
EPSS score — higher than 9% of all CVEs
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Not on CISA KEV list
No confirmed active exploitation reported to CISA
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Patch status unknown
Check vendor advisories for fix availability and mitigation guidance
6
CVSS 6.5/10 Medium
NETWORK / LOW complexity

Affected Products (1)

Affected Vendors

Hongdian

References (4)

Product http://en.hongdian.com/Products/Details/H8922
Exploit https://ssd-disclosure.com/ssd-advisory-hongdian-h8922-multiple-vulnerabilities/
Product http://en.hongdian.com/Products/Details/H8922
Exploit https://ssd-disclosure.com/ssd-advisory-hongdian-h8922-multiple-vulnerabilities/
49
/ 100
moderate-risk
Severity 24/34 · High
Exploitability 20/34 · Moderate
Exposure 5/34 · Minimal