PT-2021-14424 · Glpi+1 · Glpi+1

Trasher + 1 · Published 2021-03-08 · Updated 2024-05-22 · CVE-2021-21327

Positive Technologies (AI Summary)

CVSS v3.1

7.5

High

Base vector

AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:H/A:N

Name of the Vulnerable Software and Affected Versions GLPI versions prior to 9.5.4

Description The issue allows a non-authenticated user to remotely instantiate objects of any class in the GLPI environment, potentially leading to malicious attacks or the start of a "POP chain". This affects the integrity of the GLPI core platform and third-party plugins runtime, particularly those with sensitive operations in their constructors or destructors.

Recommendations For versions prior to 9.5.4, update to version 9.5.4 to resolve the issue. As a temporary workaround, consider restricting access to sensitive classes and their constructors or destructors to minimize the risk of exploitation.

Exploit

Fix

Missing Authorization

Weakness Enumeration

CWE-862

CWE-470

Related Identifiers

ALT-PU-2021-1583

ALT-PU-2021-1660

ALT-PU-2024-8094

CVE-2021-21327

GHSA-QMW7-W2M4-RJWP

Affected Products

Alt Linux

Glpi

References · 10

• 🔥 http://packetstormsecurity.com/files/161680/GLPI-9.5.3-Unsafe-Reflection.html · Exploit
• https://github.com/glpi-project/glpi/security/advisories/GHSA-qmw7-w2m4-rjwp · Vendor Advisory
• https://osv.dev/vulnerability/CVE-2021-21327 · Vendor Advisory
• https://ubuntu.com/security/CVE-2021-21327 · Vendor Advisory
• https://cve.org/CVERecord?id=CVE-2021-21327 · Security Note
• https://nvd.nist.gov/vuln/detail/CVE-2021-21327 · Security Note
• https://osv.dev/vulnerability/UBUNTU-CVE-2021-21327 · Vendor Advisory
• https://github.com/glpi-project/glpi/releases/tag/9.5.4 · Note
• https://t.me/cvenotify/11458 · Telegram Post
• https://t.me/cvenotify/10992 · Telegram Post