Arbitrary file upload in Hanwhasecurity Web Viewer
CVE-2017-16524
Web Viewer 1.0.0.193 on Samsung SRN-1670D devices suffers from an Unrestricted file upload vulnerability: 'network_ssl_upload.php' allows remote authenticated attackers to upload and execute arbitrary PHP code via a filename with a .php extension, which is then accessed via a direct request to the file in the upload/ directory. To authenticate for this attack, one can obtain web-interface credentials in cleartext by leveraging the existing Local File Read Vulnerability referenced as CVE-2015-8279, which allows remote attackers to read the web-interface credentials via a request for the cslog_export.php?path=/root/php_modules/lighttpd/sbin/userpw URI.
Vulnerability class: Unrestricted File Upload
Published · last modified .
CVSS v3 metric
CVSS v3 base score 8.8 (High). Vector: CVSS:3.0/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H.
EPSS exploit prediction
EPSS: 0.303 (98.2th percentile), scored .
Moderate probability of exploitation in the next 30 days — watch for active exploitation reports. 98th percentile — 98.2% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.
EPSS over last 30 days · oldest: 0.303 · newest: 0.303 · change: 0.000
Affected products
- Hanwhasecurity Web Viewer — versions 1.0.0.193
- Samsung Srn-1670d
Weakness classification (CWE)
Public proof-of-concept exploits
References
- www.exploit-db.com/exploits/43138/ (Exploit, VDB Entry, Third Party Advisory, exploit, Issue Tracking)
- github.com/realistic-security/CVE-2017-16524 (Exploit, Third Party Advisory, Issue Tracking)
Frequently asked questions
- What is CVE-2017-16524?
- CVE-2017-16524 is a high-severity vulnerability in Hanwhasecurity Web Viewer, classified under Unrestricted Upload of File with Dangerous Type. CVSS score: 8.8/10. Published 2017-11-06.
- How severe is CVE-2017-16524?
- High severity. CVSS v3 base score is 8.8 out of 10.
- Is CVE-2017-16524 known to be exploited?
- 2 public proof-of-concept repositories are indexed. Not currently listed in the CISA KEV catalog.