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GHSA-2f4w-6mc7-4w78medium4.6

LibreNMS Display Name 2 Stored Cross-site Scripting vulnerability

Impact

Description:

Source excerpt · OSV

Affected packages

Start with the recorded fix for your release branch. Check your installed version and test compatibility before upgrading. Fixing this advisory does not rule out other vulnerabilities in the release.

librenms/librenms Packagist
Affected rangeRecorded fix
From 24.11.10 before 24.12.0Ecosystem versions24.12.0

Version evidence: OSV · GHSA-2f4w-6mc7-4w78

View original version evidence (1 explicit versions)

Original source description

StoredXSS-LibreNMS-Display Name 2

Description:

XSS on the parameters (Replace $DEVICE_ID with your specific $DEVICE_ID value):/device/$DEVICE_ID/edit -> param: display

of Librenms versions 24.11.0 (https://github.com/librenms/librenms) allows remote attackers to inject malicious scripts. When a user views or interacts with the page displaying the data, the malicious script executes immediately, leading to potential unauthorized actions or data exposure.

Proof of Concept:

  1. Add a new device through the LibreNMS interface.
  2. Edit the newly created device by going to the "Device Settings" section.
  3. In the "Display Name" field, enter the following payload: "><img src onerror="alert(document.cookie)">. image
  4. Save the changes.
  5. The XSS payload is triggered when navigating to the path /device/$DEVICE_ID/logs and hovering over a type containing a tag (such as Core 1 in the image). image

Impact:

Execution of Malicious Code

References