CVE-2023-48295: Librenms/librenms Cross-Site Scripting Vulnerability

MODERATE
Advisory Identifier: GHSA-8phr-637g-pxrg
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CVSS 6.3
CWE-79
Published
Advisory Summary

CVE-2023-48295 is a MODERATE (CVSS 6.3) cross-site scripting vulnerability (CWE-79: Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting')) affecting Librenms/librenms libraries in the Packagist ecosystem. The issue involves librenms cross-site scripting at device groups deletion feature. Remediation is available by upgrading affected packages to version 23.11.0.

CVE-2023-48295 at a Glance

CVE Identifier CVE-2023-48295
GHSA Identifier GHSA-8phr-637g-pxrg
Severity MODERATE
CVSS v3.1 Base Score 6.3
CWE Classification CWE-79: Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting')
Affected Product Librenms/librenms
Package Ecosystem Packagist
Published Date
Last Updated

Security Impact

CVSS: 6.3

The security impact metrics below are parsed directly from the CVSS v3.1 vector string (CVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:U/C:H/I:L/A:N).

Attack Vector Network (AV:N)
Attack Complexity Low (AC:L)
Privileges Required Low (PR:L)
User Interaction Required (UI:R)
Scope Unchanged (S:U)
Confidentiality High (C:H)
Integrity Low (I:L)
Availability None (A:N)

How to Fix CVE-2023-48295

To remediate this vulnerability, upgrade all affected Librenms/librenms dependencies to a patched release. Both direct and transitive dependencies should be checked, as frameworks or security libraries may pull in vulnerable versions transitively.

librenms/librenms fixed: 23.11.0 
Upgrade librenms/librenms to 23.11.0
Verify Direct and Transitive Dependencies

Run the following command in your project directory to verify that all resolved dependencies use the patched release: 

inspect dependencies for librenms/librenms

How to Check if You Are Affected

To determine whether your application is affected by CVE-2023-48295, inspect your project dependencies for Librenms/librenms:

inspect dependencies for librenms/librenms

Analyze the terminal output to locate any version of Librenms/librenms in your dependency tree. If any resolved version matches the vulnerable ranges listed in the table below (for example, versions earlier than 23.11.0), your application is affected.

Note: Verify declared build manifests and deployed runtime container environments.

Technical Details

Vulnerability Mechanism & Technical Analysis

This vulnerability is classified under CWE-79: Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting'), where the product does not neutralize or incorrectly neutralizes user-controllable input before it is placed in output that is used as a web page that is served to other users. In Librenms/librenms, software state validation or input boundaries are circumvented during processing. Review the official source advisory statement below for specific affected components, classes, and reproduction details.

Source Advisory Statement

### Summary XSS attacks occurs when application is not sanitising inputs properly and rendering the code from user input to browser which could allow an attacker to execute malicious javascript code. ### PoC 1. Login 2. Create a device group in /device-groups 3. Name it as `"><img src=x onerror=alert(1);>` 4. save it 5. Go to services and create a service template and add that device group into that and save it 6. After that go back to device groups and delete that device, you will see XSS payload popup in message <img width="1043" alt="Screenshot 2023-11-08 at 9 15 56 PM" src="https://user-images.githubusercontent.com/31764504/281489434-9beaebd6-b9ce-4098-a8e0-d67b185062b5.png"> ### Vulnerable code: https://github.com/librenms/librenms/blob/63eeeb71722237d1461a37bb6da99fda25e02c91/app/Http/Controllers/DeviceGroupController.php#L173C21-L173C21 Line 173 is not sanitizing device name properly <img width="793" alt="Screenshot 2023-11-08 at 9 26 14 PM" src="https://user-images.githubusercontent.com/31764504/281490570-5ae6e73a-37ce-4683-8bc8-81655abd8d09.png"> ### Impact Cross site scripting can lead to cookie stealing attacks

CVE-2023-48295 Affected Librenms/librenms Versions

1 component(s)
Fixed Versions:
23.11.0
Product / Package Ecosystem Affected Versions Fixed Version
librenms/librenms
 Packagist
< 23.11.0
23.11.0

References

GitHub Advisory / Wiki ADVISORY
https://github.com/librenms/librenms/security/advisories/GHSA-8phr-637g-pxrg
NVD — CVE-2023-48295 NVD
https://nvd.nist.gov/vuln/detail/CVE-2023-48295
Security Fix Commit FIX COMMIT
https://github.com/librenms/librenms/commit/faf66035ea1f4c1c4f34559b9d0ed40ee4a19f90
Librenms/librenms Source Repository REPOSITORY
https://github.com/librenms/librenms
Librenms/librenms Source Repository REPOSITORY
https://github.com/librenms/librenms/blob/63eeeb71722237d1461a37bb6da99fda25e02c91/app/Http/Controllers/DeviceGroupController.php#L173C21-L173C21

Frequently Asked Questions

What is CVE-2023-48295?
CVE-2023-48295 is a security vulnerability in Librenms/librenms involving LibreNMS Cross-site Scripting at Device groups Deletion feature under CWE-79: Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting').
Which Librenms/librenms versions are affected?
Affected versions include releases prior to 23.11.0 across affected packages: librenms/librenms.
What version fixes CVE-2023-48295?
Upgrading to 23.11.0 (or the latest patched release for your respective branch) resolves the vulnerability.
Is librenms/librenms affected?
Yes, librenms/librenms is affected in releases prior to 23.11.0. Upgrade your dependency to 23.11.0 or later.
What is the CVSS score of CVE-2023-48295?
CVE-2023-48295 has a CVSS v3.1 base score of 6.3 (MODERATE) with vector string CVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:U/C:H/I:L/A:N.
What CWE is associated with CVE-2023-48295?
CVE-2023-48295 is classified under CWE-79: Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting') (The product does not neutralize or incorrectly neutralizes user-controllable input before it is placed in output that is used as a web page that is served to other users.).
How can I check Packagist dependencies for CVE-2023-48295?
Run the dependency tree command: 'inspect dependencies for librenms/librenms'. This command lists direct and transitive dependencies in your build configuration so you can verify if a vulnerable version is resolved.
Machine-readable OSV JSON OSV v1.5 Schema
Normalized schema output
View Raw JSON 
{
  "schema_version" : "1.4.0",
  "id" : "GHSA-8phr-637g-pxrg",
  "modified" : "2023-11-17T21:51:24Z",
  "published" : "2023-11-17T21:51:24Z",
  "aliases" : [ "CVE-2023-48295" ],
  "summary" : "LibreNMS Cross-site Scripting at Device groups Deletion feature",
  "details" : "### Summary\nXSS attacks occurs when application is not sanitising inputs properly and rendering the code from user input to browser which could allow an attacker to execute malicious javascript code.\n\n### PoC\n1. Login\n2. Create a device group in /device-groups\n3. Name it as `\"><img src=x onerror=alert(1);>`\n4. save it\n5. Go to services and create a service template and add that device group into that and save it\n6. After that go back to device groups and delete that device, you will see XSS payload popup in message\n<img width=\"1043\" alt=\"Screenshot 2023-11-08 at 9 15 56 PM\" src=\"https://user-images.githubusercontent.com/31764504/281489434-9beaebd6-b9ce-4098-a8e0-d67b185062b5.png\">\n\n\n### Vulnerable code:\nhttps://github.com/librenms/librenms/blob/63eeeb71722237d1461a37bb6da99fda25e02c91/app/Http/Controllers/DeviceGroupController.php#L173C21-L173C21\n\nLine 173 is not sanitizing device name properly\n<img width=\"793\" alt=\"Screenshot 2023-11-08 at 9 26 14 PM\" src=\"https://user-images.githubusercontent.com/31764504/281490570-5ae6e73a-37ce-4683-8bc8-81655abd8d09.png\">\n\n### Impact\nCross site scripting can lead to cookie stealing attacks",
  "severity" : [ {
    "type" : "CVSS_V3",
    "score" : "CVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:U/C:H/I:L/A:N"
  } ],
  "affected" : [ {
    "package" : {
      "ecosystem" : "Packagist",
      "name" : "librenms/librenms"
    },
    "ranges" : [ {
      "type" : "ECOSYSTEM",
      "events" : [ {
        "introduced" : "0"
      }, {
        "fixed" : "23.11.0"
      } ]
    } ]
  } ],
  "references" : [ {
    "type" : "WEB",
    "url" : "https://github.com/librenms/librenms/security/advisories/GHSA-8phr-637g-pxrg"
  }, {
    "type" : "ADVISORY",
    "url" : "https://nvd.nist.gov/vuln/detail/CVE-2023-48295"
  }, {
    "type" : "WEB",
    "url" : "https://github.com/librenms/librenms/commit/faf66035ea1f4c1c4f34559b9d0ed40ee4a19f90"
  }, {
    "type" : "PACKAGE",
    "url" : "https://github.com/librenms/librenms"
  }, {
    "type" : "WEB",
    "url" : "https://github.com/librenms/librenms/blob/63eeeb71722237d1461a37bb6da99fda25e02c91/app/Http/Controllers/DeviceGroupController.php#L173C21-L173C21"
  } ],
  "database_specific" : {
    "cwe_ids" : [ "CWE-79" ],
    "severity" : "MODERATE",
    "github_reviewed" : true,
    "github_reviewed_at" : "2023-11-17T21:51:24Z",
    "nvd_published_at" : "2023-11-17T21:15:07Z"
  }
}