Bug 1866559 (CVE-2020-11985)

Summary:	CVE-2020-11985 httpd: IP address spoofing when proxying using mod_remoteip and mod_rewrite
Product:	[Other] Security Response	Reporter:	Pedro Sampaio <psampaio>
Component:	vulnerability	Assignee:	Nobody <nobody>
Status:	NEW ---	QA Contact:
Severity:	medium	Docs Contact:
Priority:	medium
Version:	unspecified	CC:	anon.amish, csutherl, gzaronik, hhorak, jclere, jdoyle, jkaluza, jlyle, jorton, jwon, lgao, luhliari, mbabacek, mturk, pahan, pjindal, pslavice, rsvoboda, weli, yozone
Target Milestone:	---	Keywords:	Security
Target Release:	---
Hardware:	All
OS:	Linux
Whiteboard:
Fixed In Version:	httpd 2.4.24	Doc Type:	If docs needed, set a value
Doc Text:	A flaw was found in the mod_remoteip module shipped with the httpd package. This flaw allows an attacker to spoof the IP address, resulting in the bypass of a mod_rewrite rule. The highest threat from this vulnerability is to integrity.	Story Points:	---
Clone Of:		Environment:
Last Closed:		Type:	---
Regression:	---	Mount Type:	---
Documentation:	---	CRM:
Verified Versions:		Category:	---
oVirt Team:	---	RHEL 7.3 requirements from Atomic Host:
Cloudforms Team:	---	Target Upstream Version:
Embargoed:
Bug Depends On:	1867471, 1867472, 1867473, 1868147
Bug Blocks:	1866566

Description Pedro Sampaio 2020-08-05 21:54:16 UTC

A flaw was found in httpd before version 2.4.24. When proxying using mod_remoteip and mod_rewrite its possible to spoof IP addresses.

Upstream patch:

https://svn.apache.org/viewvc?view=revision&revision=1767483

Comment 1 Pedro Sampaio 2020-08-05 21:54:20 UTC

Acknowledgments:

Name: the Apache project

Comment 3 Ted Jongseok Won 2020-08-06 00:16:33 UTC

This vulnerability is out of security support scope for the following product:
 * Red Hat JBoss Enterprise Web Server 2

Please refer to https://access.redhat.com/support/policy/updates/jboss_notes for more details.

Comment 7 Guilherme de Almeida Suckevicz 2020-08-11 19:45:42 UTC

Created httpd tracking bugs for this issue:

Affects: fedora-all [bug 1868147]

Comment 9 Huzaifa S. Sidhpurwala 2020-08-16 09:52:27 UTC

Statement:

This issue only affects httpd-2.4.x, therefore, httpd packages shipped with Red Hat Enterprise Linux 6 are not affected by this flaw.

Comment 10 Huzaifa S. Sidhpurwala 2020-08-16 10:03:05 UTC

External References:

https://httpd.apache.org/security/vulnerabilities_24.html#CVE-2020-11985