CVE-2026-82413 (GCVE-0-2026-82413)
Vulnerability from cvelistv5 – Published: 2026-11-05 16:04 – Updated: 2026-11-09 16:51
VLAI
EPSS
VEX
Title
ntopng: authenticated (non-admin) OS command injection via the vulnerability-scan `scan_ports` parameter (`nmap` argument reaches `popen`)
Summary
ntopng is a web-based network traffic monitoring application. Prior to 6.7.260717, scripts/lua/rest/v2/add/host/to_scan.lua and scripts/lua/rest/v2/exec/host/schedule_vulnerability_scan.lua accept scan_ports from any authenticated session, including non-administrator users, while deployments with login disabled expose the same request without authentication. The endpoints validate scan_ports with validateSingleWord, which permits shell metacharacters, and persist the value for the minute vulnerability-scan scheduler. The scheduler concatenates the value into an nmap command through nmap_scan_host and executes it through ntop.execCmd or ntop.execCmdAsync using popen. For the tcp_portscan and cve modules, a preliminary nmap -sn probe must first report the target as up before the attacker-controlled ports are used. When nmap is installed, this command injection allows arbitrary operating-system commands to execute as the ntopng service account without further user interaction. This issue is fixed in version 6.7.260717.
Severity
8.8 (High)
SSVC
Exploitation: none
Automatable: no
Technical Impact: total
CISA Coordinator · CISA-ADP (v2.0.3)
Decision recorded 2026-11-09 16:12 UTC
CWE
Assigner
GitHub_M
CNA
References
2 references
| URL | Tags |
|---|---|
| https://github.com/ntop/ntopng/security/advisorie… | x_refsource_CONFIRM |
| https://github.com/ntop/ntopng/commit/fda269014c6… | x_refsource_MISC |
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