CVE-2019-20372: Medium severity Apple Xcode vulnerability

Published Jan 9, 2020
·
Updated

IDE Xcode Server. Multiple issues were addressed by updating nginx to version 1.21.0.

Other sources

NGINX before 1.17.7, with certain errorpage configurations, allows HTTP request smuggling, as demonstrated by the ability of an attacker to read unauthorized web pages in environments where NGINX is being fronted by a load balancer.

Credit

CVE-2016-0742, CVE-2016-0746, CVE-2016-0747, CVE-2017-7529, CVE-2018-16843, CVE-2018-16844, CVE-2018-16845, CVE-2019-20372

Affected Software

9 affected componentsFixes available
redhat/rh-nginx116-nginx<1:1.16.1-4.el7.1
1:1.16.1-4.el7.1
Apple Xcode<13
13
F5 Nginx<1.17.7
Apple Xcode<13.0
Canonical Ubuntu Linux=14.04
openSUSE Leap=15.1
NetApp Cloud Backup
redhat/nginx<1.17.7
1.17.7
debian/nginx
1.18.0-6.1+deb11u31.18.0-6.1+deb11u51.22.1-9+deb12u31.22.1-9+deb12u41.26.3-3+deb13u11.26.3-3+deb13u21.28.2-2

Remediation

Patch Available

https://github.com/kubernetes/ingress-nginx/pull/4859

Patch Available

https://github.com/nginx/nginx/commit/c1be55f97211d38b69ac0c2027e6812ab8b1b94e

Information

To mitigate this issue, use a named location instead of having the error_page handler do the redirect, this configuration is not vulnerable to request smuggling on all versions of NGINX we tested. server { listen 80; server_name localhost; error_page 401 @401; location / { return 401; } location @401 { return 302 http://example.org; } }

Event History

Jan 9, 2020
CVE Published
12:00 AM
CVE Published
via MITRE·08:05 PM
Data Sourced
via MITRE·08:05 PM
Description
Data Sourced
via NVD·09:15 PM
RemedyDescriptionSeverityWeaknessAffected Software
Jan 13, 2020
Data Sourced
via Red Hat·02:36 AM
DescriptionSeverityAffected Software
Jan 11, 2024
Data Sourced
via Launchpad·11:25 PM
Description
Feb 23, 2026
Data Sourced
via Ubuntu·03:17 PM
RemedyDescriptionSeverityAffected Software
Data Sourced
via Debian·03:18 PM
DescriptionAffected Software

Parent advisories

This vulnerability appears in the following advisories.

Peer vulnerabilities

Found alongside the following vulnerabilities.

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Frequently Asked Questions

1

What is the severity of CVE-2019-20372?

The severity of CVE-2019-20372 is medium with a severity value of 5.3.

2

How does NGINX before 1.17.7 allow HTTP request smuggling?

NGINX before 1.17.7, with certain error_page configurations, allows HTTP request smuggling.

3

What is the affected software for CVE-2019-20372?

The affected software for CVE-2019-20372 includes NGINX versions before 1.17.7 and certain versions of Apple Xcode.

4

What is the remedy for CVE-2019-20372?

The remedy for CVE-2019-20372 is to update NGINX to version 1.17.7 or later.

5

Where can I find more information about CVE-2019-20372?

You can find more information about CVE-2019-20372 on the CVE website, NIST NVD, Red Hat Bugzilla, and Red Hat Security Advisory.

Company

Resources

Contact

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