CVE-2018-20434

CriticalCVSS 9.8/10Last modified Jun 17, 2026

Description

LibreNMS 1.46 allows remote attackers to execute arbitrary OS commands by using the $_POST['community'] parameter to html/pages/addhost.inc.php during creation of a new device, and then making a /ajax_output.php?id=capture&format=text&type=snmpwalk&hostname=localhost request that triggers html/includes/output/capture.inc.php command mishandling.

Metrics

CVSS 3.0 9.8/10CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H

Weakness enumeration

CWE-78

Affected software

No affected versions have been published.

Timeline

Published
Apr 24, 2019
Last modified
Jun 17, 2026
NVD status
Modified

Related CVEs from 2018

CVE-2018-204368.1The "secret chat" feature in Telegram 4.9.1 for Android has a "side channel" in which Telegram servers send GET requests for URLs typed whilCVE-2018-204377.5An issue was discovered in the fileDownload function in the CommonController class in FEBS-Shiro before 2018-11-05. An attacker can downloadCVE-2018-204389.8Technicolor TC7110.AR STD3.38.03 devices allow remote attackers to discover Wi-Fi credentials via iso.3.6.1.4.1.2863.205.10.1.30.4.1.14.1.3.CVE-2018-204399.8Technicolor DPC3928SL D3928SL-PSIP-13-A010-c3420r55105-170214a devices allow remote attackers to discover Wi-Fi credentials via iso.3.6.1.4.CVE-2018-204409.8Technicolor CWA0101 CWA0101E-A23E-c7000r5712-170315-SKC devices allow remote attackers to discover Wi-Fi credentials via iso.3.6.1.4.1.4413.CVE-2018-204419.8Technicolor TC7200.TH2v2 SC05.00.22 devices allow remote attackers to discover Wi-Fi credentials via iso.3.6.1.4.1.2863.205.10.1.30.4.1.14.1CVE-2018-204429.8Technicolor TC7110.B STC8.62.02 devices allow remote attackers to discover Wi-Fi credentials via iso.3.6.1.4.1.2863.205.10.1.30.4.1.14.1.3.3CVE-2018-204439.8Technicolor TC7200.d1I TC7200.d1IE-N23E-c7000r5712-170406-HAT devices allow remote attackers to discover Wi-Fi credentials via iso.3.6.1.4.1CVE-2018-204449.8Technicolor CGA0111 CGA0111E-ES-13-E23E-c8000r5712-170217-0829-TRU devices allow remote attackers to discover Wi-Fi credentials via iso.3.6.CVE-2018-204459.8D-Link DCM-604 DCM604_C1_ViaCabo_1.04_20130606 and DCM-704 EU_DCM-704_1.10 devices allow remote attackers to discover Wi-Fi credentials via CVE-2018-204485.4Frog CMS 0.9.5 has XSS via the Database name field to the /install/index.php URI.CVE-2018-204495.5The hidma_chan_stats function in drivers/dma/qcom/hidma_dbg.c in the Linux kernel 4.14.90 allows local users to obtain sensitive address inf
CVE-2018-20434: Critical severity, CVSS 9.8 | Vulnix