CVE-2021-21324

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Summary

CVECVE-2021-21324
StatePUBLIC
Assigner[email protected]
Source PriorityCVE Program / NVD first with legacy fallback
Published2021-03-08 17:15:00 UTC
Updated2021-03-17 14:06:00 UTC
DescriptionGLPI 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 there is an Insecure Direct Object Reference (IDOR) on "Solutions". This vulnerability gives an unauthorized user the ability to enumerate GLPI items names (including users logins) using the knowbase search form (requires authentication). To Reproduce: Perform a valid authentication at your GLPI instance, Browse the ticket list and select any open ticket, click on Solution form, then Search a solution form that will redirect you to the endpoint /"glpi/front/knowbaseitem.php?item_itemtype=Ticket&item_items_id=18&forcetab=Knowbase$1", and the item_itemtype=Ticket parameter present in the previous URL will point to the PHP alias of glpi_tickets table, so just replace it with "Users" to point to glpi_users table instead; in the same way, item_items_id=18 will point to the related column id, so changing it too you should be able to enumerate all the content which has an alias. Since such id(s) are obviously incremental, a malicious party could exploit the vulnerability simply by guessing-based attempts.

Risk And Classification

Problem Types: CWE-639

NVD Known Affected Configurations (CPE 2.3)

TypeVendorProductVersionUpdateEditionLanguage
Application Glpi-project Glpi All All All All

References

ReferenceSourceLinkTags
Insecure Direct Object Reference (IDOR) on "Solutions" · Advisory · glpi-project/glpi · GitHub CONFIRM github.com Exploit, Third Party Advisory
Release 9.5.4 · glpi-project/glpi · GitHub MISC github.com Release Notes, Third Party Advisory
validate entity_restrict when available with idor tokens · glpi-project/glpi@aade65b · GitHub MISC github.com Patch, Third Party Advisory
CVE Program record CVE.ORG www.cve.org canonical
NVD vulnerability detail NVD nvd.nist.gov canonical, analysis

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