Bug 1820761 (CVE-2020-1927) - CVE-2020-1927 httpd: mod_rewrite configurations vulnerable to open redirect
Summary: CVE-2020-1927 httpd: mod_rewrite configurations vulnerable to open redirect
Keywords:
Status: CLOSED ERRATA
Alias: CVE-2020-1927
Product: Security Response
Classification: Other
Component: vulnerability
Version: unspecified
Hardware: All
OS: Linux
medium
medium
Target Milestone: ---
Assignee: Red Hat Product Security
QA Contact:
URL:
Whiteboard:
Depends On: 1820775 1823258 1823259 1823260
Blocks: 1820777
TreeView+ depends on / blocked
 
Reported: 2020-04-03 20:14 UTC by Guilherme de Almeida Suckevicz
Modified: 2023-12-15 17:37 UTC (History)
25 users (show)

Fixed In Version: httpd 2.4.42
Doc Type: If docs needed, set a value
Doc Text:
A flaw was found in Apache HTTP Server (httpd) versions 2.4.0 to 2.4.41. Redirects configured with mod_rewrite that were intended to be self-referential might be fooled by encoded newlines and redirected instead to an unexpected URL within the request URL.
Clone Of:
Environment:
Last Closed: 2020-04-22 16:32:40 UTC
Embargoed:

Attachments (Terms of Use)


Links
System ID Private Priority Status Summary Last Updated
Red Hat Product Errata RHSA-2020:1336 0 None None None 2020-04-22 14:04:55 UTC
Red Hat Product Errata RHSA-2020:1337 0 None None None 2020-04-22 14:10:30 UTC
Red Hat Product Errata RHSA-2020:2263 0 None None None 2020-05-26 09:01:49 UTC
Red Hat Product Errata RHSA-2020:3958 0 None None None 2020-09-29 20:07:30 UTC
Red Hat Product Errata RHSA-2020:4751 0 None None None 2020-11-04 03:35:09 UTC

Description Guilherme de Almeida Suckevicz 2020-04-03 20:14:17 UTC 
In Apache HTTP Server 2.4.0 to 2.4.41, redirects configured with mod_rewrite that were intended to be self-referential might be fooled by encoded newlines and redirect instead to an an unexpected URL within the request URL.

References:
https://httpd.apache.org/security/vulnerabilities_24.html
Comment 1 Guilherme de Almeida Suckevicz 2020-04-03 20:39:41 UTC 
Created httpd tracking bugs for this issue:

Affects: fedora-all [bug 1820775]
Comment 4 Huzaifa S. Sidhpurwala 2020-04-13 04:19:39 UTC 
Statement:

This issue only affects httpd versions between 2.4.0 and 2.4.41. Therefore Red Hat Enterprise Linux 5 and 6 are not affected by this flaw.
Comment 6 Huzaifa S. Sidhpurwala 2020-04-13 04:34:57 UTC 
External References:

https://httpd.apache.org/security/vulnerabilities_24.html
Comment 8 errata-xmlrpc 2020-04-22 14:04:53 UTC 
This issue has been addressed in the following products:

  JBoss Core Services Apache HTTP Server 2.4.37 SP2

Via RHSA-2020:1336 https://access.redhat.com/errata/RHSA-2020:1336
Comment 9 errata-xmlrpc 2020-04-22 14:10:28 UTC 
This issue has been addressed in the following products:

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

Via RHSA-2020:1337 https://access.redhat.com/errata/RHSA-2020:1337
Comment 10 Product Security DevOps Team 2020-04-22 16:32:40 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-2020-1927
Comment 11 errata-xmlrpc 2020-05-26 09:01:43 UTC 
This issue has been addressed in the following products:

  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 7.7 EUS
  Red Hat Software Collections for Red Hat Enterprise Linux 6

Via RHSA-2020:2263 https://access.redhat.com/errata/RHSA-2020:2263
Comment 12 errata-xmlrpc 2020-09-29 20:07:28 UTC 
This issue has been addressed in the following products:

  Red Hat Enterprise Linux 7

Via RHSA-2020:3958 https://access.redhat.com/errata/RHSA-2020:3958
Comment 13 errata-xmlrpc 2020-11-04 03:35:06 UTC 
This issue has been addressed in the following products:

  Red Hat Enterprise Linux 8

Via RHSA-2020:4751 https://access.redhat.com/errata/RHSA-2020:4751
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