Bug 1660402 (CVE-2018-11769)

Summary: CVE-2018-11769 couchdb: Possible privilege escalation by couchdb administrator to system couchdb user
Product: [Other] Security Response Reporter: Andrej Nemec <anemec>
Component: vulnerabilityAssignee: Red Hat Product Security <security-response-team>
Severity: high Docs Contact:
Priority: high    
Version: unspecifiedCC: lemenkov
Target Milestone: ---Keywords: Security
Target Release: ---   
Hardware: All   
OS: Linux   
Fixed In Version: couchdb 2.2.0 Doc Type: If docs needed, set a value
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Clone Of: Environment:
Last Closed: 2019-06-10 10:44:07 UTC Type: ---
Regression: --- Mount Type: ---
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oVirt Team: --- RHEL 7.3 requirements from Atomic Host:
Cloudforms Team: --- Target Upstream Version:
Bug Depends On: 1660403    
Bug Blocks:    

Description Andrej Nemec 2018-12-18 09:39:54 UTC
CouchDB administrative users can configure the database server via HTTP(S). Due to insufficient validation of administrator-supplied configuration settings via the HTTP API, it is possible for a CouchDB administrator user to escalate their privileges to that of the operating system’s user under which CouchDB runs, by bypassing the blacklist of configuration settings that are not allowed to be modified via the HTTP API.

This privilege escalation effectively allows a CouchDB admin user to gain arbitrary remote code execution, bypassing mitigations for CVE-2017-12636 and CVE-2018-8007.



Comment 1 Andrej Nemec 2018-12-18 09:40:07 UTC
Created couchdb tracking bugs for this issue:

Affects: fedora-all [bug 1660403]

Comment 2 Product Security DevOps Team 2019-06-10 10:44:07 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.