Bug 1834491 (CVE-2020-11036)

Summary: CVE-2020-11036 glpi: XSS in the comments of items in the knowledge base and via the User-Agent for administrators
Product: [Other] Security Response Reporter: Guilherme de Almeida Suckevicz <gsuckevi>
Component: vulnerabilityAssignee: Red Hat Product Security <security-response-team>
Status: CLOSED UPSTREAM QA Contact:
Severity: medium Docs Contact:
Priority: medium    
Version: unspecifiedCC: extras-orphan, fedora
Target Milestone: ---Keywords: Security
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Hardware: All   
OS: Linux   
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Last Closed: 2020-05-12 10:33:51 UTC Type: ---
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oVirt Team: --- RHEL 7.3 requirements from Atomic Host:
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Bug Depends On: 1834492, 1834493    
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Description Guilherme de Almeida Suckevicz 2020-05-11 19:49:28 UTC 
In GLPI before version 9.4.6 there are multiple related stored XSS vulnerabilities. The package is vulnerable to Stored XSS in the comments of items in the Knowledge base. Adding a comment with content "<script>alert(1)</script>" reproduces the attack. This can be exploited by a user with administrator privileges in the User-Agent field. It can also be exploited by an outside party through the following steps: 1. Create a user with the surname `" onmouseover="alert(document.cookie)` and an empty first name. 2. With this user, create a ticket 3. As an administrator (or other privileged user) open the created ticket 4. On the "last update" field, put your mouse on the name of the user 5. The XSS fires This is fixed in version 9.4.6.

Reference:
https://github.com/glpi-project/glpi/security/advisories/GHSA-3g3h-rwhr-7385
Comment 1 Guilherme de Almeida Suckevicz 2020-05-11 19:49:46 UTC 
Created glpi tracking bugs for this issue:

Affects: epel-7 [bug 1834493]
Affects: fedora-all [bug 1834492]
Comment 2 Product Security DevOps Team 2020-05-12 10:33:51 UTC 
This CVE Bugzilla entry is for community support informational purposes only as it does not affect a package in a commercially supported Red Hat product. Refer to the dependent bugs for status of those individual community products.