CVE-2023-48294

Public Exploit
Broken Access control on Graphs Feature in LibreNMS

Description

LibreNMS is an auto-discovering PHP/MySQL/SNMP based network monitoring which includes support for a wide range of network hardware and operating systems. In affected versions of LibreNMS when a user accesses their device dashboard, one request is sent to `graph.php` to access graphs generated on the particular Device. This request can be accessed by a low privilege user and they can enumerate devices on librenms with their id or hostname. Leveraging this vulnerability a low privilege user can see all devices registered by admin users. This vulnerability has been addressed in commit `489978a923` which has been included in release version 23.11.0. Users are advised to upgrade. There are no known workarounds for this vulnerability.

Category

4.3
CVSS
Severity: Medium
CVSS 3.1 •
EPSS 0.03%
Vendor Advisory github.com
Affected: librenms librenms
Published at:
Updated at:

References

Link Tags
https://github.com/librenms/librenms/security/advisories/GHSA-fpq5-4vwm-78x4 vendor advisory exploit
https://github.com/librenms/librenms/commit/489978a923ed52aa243d3419889ca298a8a6a7cf patch
https://github.com/librenms/librenms/blob/fa93034edd40c130c2ff00667ca2498d84be6e69/html/graph.php#L19C1-L25C2 product

Frequently Asked Questions

What is the severity of CVE-2023-48294?
CVE-2023-48294 has been scored as a medium severity vulnerability.
How to fix CVE-2023-48294?
To fix CVE-2023-48294, make sure you are using an up-to-date version of the affected component(s) by checking the vendor release notes. As for now, there are no other specific guidelines available.
Is CVE-2023-48294 being actively exploited in the wild?
It is possible that CVE-2023-48294 is being exploited or will be exploited in a near future based on public information. According to its EPSS score, there is a ~0% probability that this vulnerability will be exploited by malicious actors in the next 30 days.
What software or system is affected by CVE-2023-48294?
CVE-2023-48294 affects librenms librenms.
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