Bug 1695036 (CVE-2019-0220)

Summary: CVE-2019-0220 httpd: URL normalization inconsistency
Product: [Other] Security Response Reporter: Dhananjay Arunesh <darunesh>
Component: vulnerabilityAssignee: Red Hat Product Security <security-response-team>
Status: CLOSED ERRATA QA Contact: Maryna Nalbandian <mnalband>
Severity: low Docs Contact:
Priority: low    
Version: unspecifiedCC: anon.amish, bmcclain, csutherl, cylopez, dblechte, dfediuck, eedri, gzaronik, hhorak, huzaifas, jclere, jdoyle, jkaluza, jorton, krathod, lgao, luhliari, mbabacek, mgoldboi, michal.skrivanek, mturk, myarboro, pahan, pslavice, rsvoboda, sbonazzo, sherold, twalsh, weli, yoguma, yozone, yturgema
Target Milestone: ---Keywords: Security
Target Release: ---   
Hardware: All   
OS: Linux   
Whiteboard:
Fixed In Version: httpd 2.4.39 Doc Type: If docs needed, set a value
Doc Text:
Story Points: ---
Clone Of: Environment:
Last Closed: 2019-08-06 19:20:54 UTC 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: 1695046, 1696095, 1696096, 1696097    
Bug Blocks: 1694984    

Description Dhananjay Arunesh 2019-04-02 11:06:57 UTC
When the path component of a request URL contains multiple consecutive slashes ('/'), directives such as LocationMatch and RewriteRule must account for duplicates in regular expressions while other aspects of the servers processing will implicitly collapse them.

Comment 2 Dhananjay Arunesh 2019-04-02 11:32:57 UTC
Created httpd tracking bugs for this issue:

Affects: fedora-all [bug 1695046]

Comment 7 Huzaifa S. Sidhpurwala 2019-05-15 09:40:59 UTC
Statement:

Red Hat Enterprise Linux 6 is now in Maintenance Support 2 Phase of the support and maintenance life cycle. This flaw has been rated as having a security impact of Low, and is not currently planned to be addressed in future updates. For additional information, refer to the Red Hat Enterprise Linux Life Cycle: https://access.redhat.com/support/policy/updates/errata/.

Comment 15 Dhananjay Arunesh 2019-05-22 06:22:05 UTC
Mitigation:

This flaw can be mitigation by replacing multiple consecutive slashes, used in directives that match against the path component of the request URL with regular expressions.

Comment 19 errata-xmlrpc 2019-08-06 12:42:38 UTC
This issue has been addressed in the following products:

  Red Hat Enterprise Linux 7

Via RHSA-2019:2343 https://access.redhat.com/errata/RHSA-2019:2343

Comment 20 Product Security DevOps Team 2019-08-06 19:20:54 UTC
This bug is now closed. Further updates for individual products will be reflected on the CVE page(s):

https://access.redhat.com/security/cve/cve-2019-0220

Comment 22 errata-xmlrpc 2019-11-05 20:54:54 UTC
This issue has been addressed in the following products:

  Red Hat Enterprise Linux 8

Via RHSA-2019:3436 https://access.redhat.com/errata/RHSA-2019:3436

Comment 23 errata-xmlrpc 2019-12-10 07:57:16 UTC
This issue has been addressed in the following products:

  Red Hat Software Collections for Red Hat Enterprise Linux 6
  Red Hat Software Collections for Red Hat Enterprise Linux 7
  Red Hat Software Collections for Red Hat Enterprise Linux 7.6 EUS
  Red Hat Software Collections for Red Hat Enterprise Linux 7.5 EUS
  Red Hat Software Collections for Red Hat Enterprise Linux 7.7 EUS

Via RHSA-2019:4126 https://access.redhat.com/errata/RHSA-2019:4126

Comment 24 errata-xmlrpc 2020-01-27 21:20:16 UTC
This issue has been addressed in the following products:

  Red Hat JBoss Core Services

Via RHSA-2020:0251 https://access.redhat.com/errata/RHSA-2020:0251

Comment 25 errata-xmlrpc 2020-01-27 21:21:11 UTC
This issue has been addressed in the following products:

  JBoss Core Services on RHEL 6
  JBoss Core Services on RHEL 7

Via RHSA-2020:0250 https://access.redhat.com/errata/RHSA-2020:0250