Bug 1907497 (CVE-2020-27834) - CVE-2020-27834 zabbix: attacker can send the same request over and over again without changing the CSRF token
Summary: CVE-2020-27834 zabbix: attacker can send the same request over and over again...
Keywords:
Status: CLOSED UPSTREAM
Alias: CVE-2020-27834
Product: Security Response
Classification: Other
Component: vulnerability
Version: unspecified
Hardware: All
OS: Linux
low
low
Target Milestone: ---
Assignee: Red Hat Product Security
QA Contact:
URL:
Whiteboard:
Depends On: 1907498 1907499 1907500 1907501
Blocks:
TreeView+ depends on / blocked
 
Reported: 2020-12-14 16:17 UTC by Dhananjay Arunesh
Modified: 2021-02-22 18:30 UTC (History)
5 users (show)

Fixed In Version:
Doc Type: If docs needed, set a value
Doc Text:
A flaw was found in Zabbix. This flaw allows an attacker to use one CSRF token to send requests on a user’s behalf that are valid with each request. The highest threat from this vulnerability is to confidentiality and integrity.
Clone Of:
Environment:
Last Closed: 2020-12-14 18:47:29 UTC
Embargoed:

Attachments (Terms of Use)

Description Dhananjay Arunesh 2020-12-14 16:17:48 UTC 
A vulnerability was found in Zabbix 5.0.2, where an attacker can use one CSRF token and send request on the user behalf, and the token will be valid in every request.

References:
ttp://almorabea.net/cves/zabbix.txt
Comment 1 Dhananjay Arunesh 2020-12-14 16:18:41 UTC 
Created zabbix tracking bugs for this issue:

Affects: fedora-all [bug 1907498]


Created zabbix30 tracking bugs for this issue:

Affects: epel-7 [bug 1907499]


Created zabbix40 tracking bugs for this issue:

Affects: epel-7 [bug 1907500]
Affects: epel-8 [bug 1907501]
Comment 2 Dhananjay Arunesh 2020-12-14 16:20:15 UTC 
Acknowledgments:

Name: Ahmad Almorabea (twitter @almorabea)
Comment 3 Product Security DevOps Team 2020-12-14 18:47:29 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.
Comment 4 Orion Poplawski 2021-01-24 21:24:34 UTC 
I can find no other supporting information about this supposed vulnerability.
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