CVE-2021-21327
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”.
Does this matter?
High impact if exploited, but EPSS currently rates exploitation as unlikely (2.25%). Schedule it in the normal patch cycle and watch for a rise in EPSS or a public exploit.
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.
- CVSS 3.1
- 7.5 HIGHCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:H/A:N
- EPSS
- 2.25% probability · 82th percentile
- CISA KEV
- Not listed
- Weakness
- CWE-862, CWE-470
- Affected
- glpi-project/glpi
- Source
- security-advisories@github.com
References
- http://packetstormsecurity.com/files/161680/GLPI-9.5.3-Unsafe-Reflection.htmlExploit, Third Party Advisory, VDB Entry
- https://github.com/glpi-project/glpi/releases/tag/9.5.4Release Notes
- https://github.com/glpi-project/glpi/security/advisories/GHSA-qmw7-w2m4-rjwpVendor Advisory
- http://packetstormsecurity.com/files/161680/GLPI-9.5.3-Unsafe-Reflection.htmlExploit, Third Party Advisory, VDB Entry
- https://github.com/glpi-project/glpi/releases/tag/9.5.4Release Notes
- https://github.com/glpi-project/glpi/security/advisories/GHSA-qmw7-w2m4-rjwpVendor Advisory
Source: NVD record, EPSS from FIRST.org, KEV from CISA. Refreshed daily.