cvelistv5 - CVE-2024-50351

CVE-2024-50351 (GCVE-0-2024-50351)

Vulnerability from cvelistv5 – Published: 2024-11-15 15:34 – Updated: 2024-11-15 17:20

Summary

LibreNMS is an open-source, PHP/MySQL/SNMP-based network monitoring system. A Reflected Cross-Site Scripting (XSS) vulnerability in the "section" parameter of the "logs" tab of a device allows attackers to inject arbitrary JavaScript. This vulnerability results in the execution of malicious code when a user accesses the page with a malicious "section" parameter, potentially compromising their session and enabling unauthorized actions. The issue arises from a lack of sanitization in the "report_this()" function. This vulnerability is fixed in 24.10.0.

Severity ?

4.8 (Medium)


                        
                          CVSS:3.1/AV:N/AC:L/PR:H/UI:R/S:C/C:L/I:L/A:N

CWE

CWE-79 - Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting')

Assigner

GitHub_M

References

URL

Tags

	https://github.com/librenms/librenms/security/adv…	x_refsource_CONFIRM
	https://github.com/librenms/librenms/commit/6a14a…	x_refsource_MISC

Impacted products

	Vendor	Product	Version
	librenms	librenms	Affected: < 24.10.0

Show details on NVD website

JSON

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GHSA-V7W9-63XH-6R3W

Vulnerability from github – Published: 2024-11-15 15:34 – Updated: 2024-11-15 20:49

Summary

LibreNMS has a Reflected XSS ('Cross-site Scripting') in librenms/includes/functions.php

Details

Summary

A Reflected Cross-Site Scripting (XSS) vulnerability in the "section" parameter of the "logs" tab of a device allows attackers to inject arbitrary JavaScript. This vulnerability results in the execution of malicious code when a user accesses the page with a malicious "section" parameter, potentially compromising their session and enabling unauthorized actions. The issue arises from a lack of sanitization in the "report_this()" function.

Details

The "section" parameter of the "logs" tab is vulnerable to reflected XSS. An attacker can inject the following XSS payload into the "section" parameter: <script>constructor['constructor'](atob('Y29uZmlybShkb2N1bWVudC5kb21haW4p'))();<%2fscript>

When the page is loaded with this malicious parameter, the script executes immediately. This vulnerability occurs due to the lack of sanitization in the "report_this()" function. Other endpoints using this same function may also be vulnerable.

The vulnerable sink is located here: https://github.com/librenms/librenms/blob/7f2ae971c4a565b0d7345fa78b4211409f96800a/includes/functions.php#L523 https://github.com/librenms/librenms/blob/7f2ae971c4a565b0d7345fa78b4211409f96800a/includes/html/pages/device/logs.inc.php#L93

PoC

Inject the following payload into the "section" parameter of the "logs" tab: <script>constructor['constructor'](atob('Y29uZmlybShkb2N1bWVudC5kb21haW4p'))();<%2fscript>
Access the page with the injected payload.
Observe that the injected script executes when the page is loaded.

Example URL: http://<your_url>/device/device=1/tab=logs/section=%3Cscript%3Econstructor['constructor'](atob('Y29uZmlybShkb2N1bWVudC5kb21haW4p'))();%3C%2fscript%3E/

Example Request:

GET /device/device=1/tab=logs/section=%3Cscript%3Econstructor['constructor'](atob('Y29uZmlybShkb2N1bWVudC5kb21haW4p'))();%3C%2fscript%3E/ HTTP/1.1
Host: <your_host>
Cookie: <your_cookie>

Impact

This vulnerability allows attackers to execute arbitrary JavaScript in the context of a user’s session by crafting a malicious URL. The attack could lead to session hijacking, unauthorized actions, or further exploitation by injecting malicious scripts.

Severity ?

7.5 (High)


                  
                    CVSS:3.1/AV:N/AC:L/PR:H/UI:R/S:C/C:H/I:L/A:L

Show details on source website

JSON

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{
  "affected": [
    {
      "database_specific": {
        "last_known_affected_version_range": "\u003c= 24.9.1"
      },
      "package": {
        "ecosystem": "Packagist",
        "name": "librenms/librenms"
      },
      "ranges": [
        {
          "events": [
            {
              "introduced": "0"
            },
            {
              "fixed": "24.10.0"
            }
          ],
          "type": "ECOSYSTEM"
        }
      ]
    }
  ],
  "aliases": [
    "CVE-2024-50351"
  ],
  "database_specific": {
    "cwe_ids": [
      "CWE-79"
    ],
    "github_reviewed": true,
    "github_reviewed_at": "2024-11-15T15:34:36Z",
    "nvd_published_at": "2024-11-15T16:15:35Z",
    "severity": "HIGH"
  },
  "details": "### Summary\nA Reflected Cross-Site Scripting (XSS) vulnerability in the \"section\" parameter of the \"logs\" tab of a device allows attackers to inject arbitrary JavaScript. This vulnerability results in the execution of malicious code when a user accesses the page with a malicious \"section\" parameter, potentially compromising their session and enabling unauthorized actions. The issue arises from a lack of sanitization in the \"report_this()\" function.\n\n### Details\nThe \"section\" parameter of the \"logs\" tab is vulnerable to reflected XSS. An attacker can inject the following XSS payload into the \"section\" parameter:\n```\u003cscript\u003econstructor[\u0027constructor\u0027](atob(\u0027Y29uZmlybShkb2N1bWVudC5kb21haW4p\u0027))();\u003c%2fscript\u003e```\n\nWhen the page is loaded with this malicious parameter, the script executes immediately. This vulnerability occurs due to the lack of sanitization in the \"report_this()\" function. Other endpoints using this same function may also be vulnerable.\n\nThe vulnerable sink is located here:\nhttps://github.com/librenms/librenms/blob/7f2ae971c4a565b0d7345fa78b4211409f96800a/includes/functions.php#L523\nhttps://github.com/librenms/librenms/blob/7f2ae971c4a565b0d7345fa78b4211409f96800a/includes/html/pages/device/logs.inc.php#L93\n\n### PoC\n1. Inject the following payload into the \"section\" parameter of the \"logs\" tab:\n```\u003cscript\u003econstructor[\u0027constructor\u0027](atob(\u0027Y29uZmlybShkb2N1bWVudC5kb21haW4p\u0027))();\u003c%2fscript\u003e```\n2. Access the page with the injected payload.\n3. Observe that the injected script executes when the page is loaded.\n\nExample URL: ```http://\u003cyour_url\u003e/device/device=1/tab=logs/section=%3Cscript%3Econstructor[\u0027constructor\u0027](atob(\u0027Y29uZmlybShkb2N1bWVudC5kb21haW4p\u0027))();%3C%2fscript%3E/```\n\nExample Request:\n```http\nGET /device/device=1/tab=logs/section=%3Cscript%3Econstructor[\u0027constructor\u0027](atob(\u0027Y29uZmlybShkb2N1bWVudC5kb21haW4p\u0027))();%3C%2fscript%3E/ HTTP/1.1\nHost: \u003cyour_host\u003e\nCookie: \u003cyour_cookie\u003e\n```\n\n### Impact\n\nThis vulnerability allows attackers to execute arbitrary JavaScript in the context of a user\u2019s session by crafting a malicious URL. The attack could lead to session hijacking, unauthorized actions, or further exploitation by injecting malicious scripts.\n",
  "id": "GHSA-v7w9-63xh-6r3w",
  "modified": "2024-11-15T20:49:52Z",
  "published": "2024-11-15T15:34:36Z",
  "references": [
    {
      "type": "WEB",
      "url": "https://github.com/librenms/librenms/security/advisories/GHSA-v7w9-63xh-6r3w"
    },
    {
      "type": "ADVISORY",
      "url": "https://nvd.nist.gov/vuln/detail/CVE-2024-50351"
    },
    {
      "type": "WEB",
      "url": "https://github.com/librenms/librenms/commit/6a14a9bd767c6e452e4df77a24126c3eeb93dcbf"
    },
    {
      "type": "PACKAGE",
      "url": "https://github.com/librenms/librenms"
    }
  ],
  "schema_version": "1.4.0",
  "severity": [
    {
      "score": "CVSS:3.1/AV:N/AC:L/PR:H/UI:R/S:C/C:H/I:L/A:L",
      "type": "CVSS_V3"
    }
  ],
  "summary": "LibreNMS has a Reflected XSS (\u0027Cross-site Scripting\u0027) in librenms/includes/functions.php"
}

FKIE_CVE-2024-50351

Vulnerability from fkie_nvd - Published: 2024-11-15 16:15 - Updated: 2024-11-21 23:37

Severity ?

4.8 (Medium) - CVSS:3.1/AV:N/AC:L/PR:H/UI:R/S:C/C:L/I:L/A:N
5.4 (Medium) - CVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:C/C:L/I:L/A:N

Summary

References

	URL	Tags
	security-advisories@github.com	https://github.com/librenms/librenms/commit/6a14a9bd767c6e452e4df77a24126c3eeb93dcbf	Patch
	security-advisories@github.com	https://github.com/librenms/librenms/security/advisories/GHSA-v7w9-63xh-6r3w	Exploit, Vendor Advisory

Impacted products

	Vendor	Product	Version
	librenms	librenms	*

JSON

To clipboard

{
  "configurations": [
    {
      "nodes": [
        {
          "cpeMatch": [
            {
              "criteria": "cpe:2.3:a:librenms:librenms:*:*:*:*:*:*:*:*",
              "matchCriteriaId": "B4BD88D2-5DA7-450B-AEFA-33BCA61685A7",
              "versionEndExcluding": "24.10.0",
              "vulnerable": true
            }
          ],
          "negate": false,
          "operator": "OR"
        }
      ]
    }
  ],
  "cveTags": [],
  "descriptions": [
    {
      "lang": "en",
      "value": "LibreNMS is an open-source, PHP/MySQL/SNMP-based network monitoring system. A Reflected Cross-Site Scripting (XSS) vulnerability in the \"section\" parameter of the \"logs\" tab of a device allows attackers to inject arbitrary JavaScript. This vulnerability results in the execution of malicious code when a user accesses the page with a malicious \"section\" parameter, potentially compromising their session and enabling unauthorized actions. The issue arises from a lack of sanitization in the \"report_this()\" function. This vulnerability is fixed in 24.10.0."
    },
    {
      "lang": "es",
      "value": "LibreNMS es un sistema de monitoreo de red de c\u00f3digo abierto basado en PHP/MySQL/SNMP. Una vulnerabilidad de tipo cross site scripting (XSS) reflejado en el par\u00e1metro \"section\" de la pesta\u00f1a \"logs\" de un dispositivo permite a los atacantes inyectar c\u00f3digo JavaScript arbitrario. Esta vulnerabilidad da como resultado la ejecuci\u00f3n de c\u00f3digo malicioso cuando un usuario accede a la p\u00e1gina con un par\u00e1metro \"section\" malicioso, lo que potencialmente compromete su sesi\u00f3n y permite acciones no autorizadas. El problema surge de una falta de limpieza en la funci\u00f3n \"report_this()\". Esta vulnerabilidad se solucion\u00f3 en 24.10.0."
    }
  ],
  "id": "CVE-2024-50351",
  "lastModified": "2024-11-21T23:37:56.520",
  "metrics": {
    "cvssMetricV31": [
      {
        "cvssData": {
          "attackComplexity": "LOW",
          "attackVector": "NETWORK",
          "availabilityImpact": "NONE",
          "baseScore": 4.8,
          "baseSeverity": "MEDIUM",
          "confidentialityImpact": "LOW",
          "integrityImpact": "LOW",
          "privilegesRequired": "HIGH",
          "scope": "CHANGED",
          "userInteraction": "REQUIRED",
          "vectorString": "CVSS:3.1/AV:N/AC:L/PR:H/UI:R/S:C/C:L/I:L/A:N",
          "version": "3.1"
        },
        "exploitabilityScore": 1.7,
        "impactScore": 2.7,
        "source": "security-advisories@github.com",
        "type": "Secondary"
      },
      {
        "cvssData": {
          "attackComplexity": "LOW",
          "attackVector": "NETWORK",
          "availabilityImpact": "NONE",
          "baseScore": 5.4,
          "baseSeverity": "MEDIUM",
          "confidentialityImpact": "LOW",
          "integrityImpact": "LOW",
          "privilegesRequired": "LOW",
          "scope": "CHANGED",
          "userInteraction": "REQUIRED",
          "vectorString": "CVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:C/C:L/I:L/A:N",
          "version": "3.1"
        },
        "exploitabilityScore": 2.3,
        "impactScore": 2.7,
        "source": "nvd@nist.gov",
        "type": "Primary"
      }
    ]
  },
  "published": "2024-11-15T16:15:35.750",
  "references": [
    {
      "source": "security-advisories@github.com",
      "tags": [
        "Patch"
      ],
      "url": "https://github.com/librenms/librenms/commit/6a14a9bd767c6e452e4df77a24126c3eeb93dcbf"
    },
    {
      "source": "security-advisories@github.com",
      "tags": [
        "Exploit",
        "Vendor Advisory"
      ],
      "url": "https://github.com/librenms/librenms/security/advisories/GHSA-v7w9-63xh-6r3w"
    }
  ],
  "sourceIdentifier": "security-advisories@github.com",
  "vulnStatus": "Analyzed",
  "weaknesses": [
    {
      "description": [
        {
          "lang": "en",
          "value": "CWE-79"
        }
      ],
      "source": "security-advisories@github.com",
      "type": "Primary"
    }
  ]
}

Sightings

Author	Source	Type	Date

Nomenclature

Seen: The vulnerability was mentioned, discussed, or observed by the user.
Confirmed: The vulnerability has been validated from an analyst's perspective.
Published Proof of Concept: A public proof of concept is available for this vulnerability.
Exploited: The vulnerability was observed as exploited by the user who reported the sighting.
Patched: The vulnerability was observed as successfully patched by the user who reported the sighting.
Not exploited: The vulnerability was not observed as exploited by the user who reported the sighting.
Not confirmed: The user expressed doubt about the validity of the vulnerability.
Not patched: The vulnerability was not observed as successfully patched by the user who reported the sighting.

Detection rules are retrieved from Rulezet.

Action not permitted

CVE-2024-50351 (GCVE-0-2024-50351)

GHSA-V7W9-63XH-6R3W

Summary

Details

PoC

Impact

FKIE_CVE-2024-50351

Tags

Sightings

Nomenclature