Bug 892030 (CVE-2011-4968)

Summary: CVE-2011-4968 nginx: http proxy module does not validate SSL certificates
Product: [Other] Security Response Reporter: Vincent Danen <vdanen>
Component: vulnerabilityAssignee: Red Hat Product Security <security-response-team>
Status: CLOSED UPSTREAM QA Contact:
Severity: medium Docs Contact:
Priority: medium    
Version: unspecifiedCC: affix, bperkins, jeremy, pavel.lisy
Target Milestone: ---Keywords: Reopened, Security
Target Release: ---   
Hardware: All   
OS: Linux   
Whiteboard:
Fixed In Version: Doc Type: Bug Fix
Doc Text:
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Clone Of: Environment:
Last Closed: 2019-06-10 10:59:51 UTC Type: ---
Regression: --- Mount Type: ---
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oVirt Team: --- RHEL 7.3 requirements from Atomic Host:
Cloudforms Team: --- Target Upstream Version:
Embargoed:
Bug Depends On: 892032, 892033    
Bug Blocks:    

Description Vincent Danen 2013-01-04 21:56:11 UTC 
It was reported [1],[2] that nginx does not verify the identity of an origin server when the http proxy module talks to that origin server over HTTPS.  This could allow for a MITM attack between the proxy and the origin server.

There are proposed patches attached to the upstream ticket, but as of yet this is not fixed in any release.

[1] http://www.openwall.com/lists/oss-security/2013/01/03/4
[2] http://trac.nginx.org/nginx/ticket/13
Comment 1 Vincent Danen 2013-01-04 21:58:06 UTC 
Created nginx tracking bugs for this issue

Affects: epel-all [bug 892032]
Affects: fedora-all [bug 892033]
Comment 2 Jamie Nguyen 2013-06-27 13:39:58 UTC 
Upstream apparently do not consider this important enough to fix. Since the upstream bug was originally reported 2 yeas ago, closing as WONTFIX for now until upstream decide they want to patch it.
Comment 3 Kurt Seifried 2016-01-21 18:08:52 UTC 
This has been fixed by upstream:

​http://mailman.nginx.org/pipermail/nginx-devel/2013-August/004085.html
​http://mailman.nginx.org/pipermail/nginx-devel/2013-August/004128.html
Comment 4 Product Security DevOps Team 2019-06-10 10:59:51 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.