FastNetMon Community Edition through 1.2.9 contains a configuration injection vulnerability in the Juniper router integration plugin. In src/juniper_plugin/fastnetmon_juniper.php, the $IP_ATTACK variable (received from argv[1]) is directly interpolated into Juniper NETCONF set-configuration commands at lines 69 and 90 without any validation or sanitization. Line 69: $conn->load_set_configuration("set routing-options static route {$IP_ATTACK} community 65535:666 discard"). Line 90: $conn->load_set_configuration("delete routing-options static route {$IP_ATTACK}/32"). An attacker who can control the IP address string can inject additional Juniper CLI configuration commands by embedding newline characters followed by arbitrary set/delete commands. This could modify the router's routing table, firewall filters, user accounts, or any other configuration element accessible via NETCONF. The impact is full router compromise.
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History
Tue, 26 May 2026 20:15:00 +0000
| Type | Values Removed | Values Added |
|---|---|---|
| Title | Configuration Injection in FastNetMon Juniper NETCONF Plugin Enables Router Compromise | |
| Weaknesses | CWE-20 CWE-78 |
Tue, 26 May 2026 18:00:00 +0000
| Type | Values Removed | Values Added |
|---|---|---|
| Description | FastNetMon Community Edition through 1.2.9 contains a configuration injection vulnerability in the Juniper router integration plugin. In src/juniper_plugin/fastnetmon_juniper.php, the $IP_ATTACK variable (received from argv[1]) is directly interpolated into Juniper NETCONF set-configuration commands at lines 69 and 90 without any validation or sanitization. Line 69: $conn->load_set_configuration("set routing-options static route {$IP_ATTACK} community 65535:666 discard"). Line 90: $conn->load_set_configuration("delete routing-options static route {$IP_ATTACK}/32"). An attacker who can control the IP address string can inject additional Juniper CLI configuration commands by embedding newline characters followed by arbitrary set/delete commands. This could modify the router's routing table, firewall filters, user accounts, or any other configuration element accessible via NETCONF. The impact is full router compromise. | |
| References |
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Status: PUBLISHED
Assigner: mitre
Published:
Updated: 2026-05-26T17:15:35.895Z
Reserved: 2026-05-22T00:00:00.000Z
Link: CVE-2026-48694
No data.
Status : Awaiting Analysis
Published: 2026-05-26T18:16:52.840
Modified: 2026-05-26T19:29:02.327
Link: CVE-2026-48694
No data.
OpenCVE Enrichment
Updated: 2026-05-26T20:00:15Z