CVE-2019-3878: High severity Mod Auth Mellon Project Mod Auth Mellon Apache vulnerability

Published Mar 20, 2019
·
Updated

A vulnerability was found in modauthmellon before v0.14.2. If Apache is configured as a reverse proxy and modauthmellon is configured to only let through authenticated users (with the require valid-user directive), adding special HTTP headers that are normally used to start the special SAML ECP (non-browser based) can be used to bypass authentication.

Other sources

A vulnerability was found in modauthmellon. If Apache is configured as a reverse proxy and modauthmellon is configured to only let through authenticated users (with the require valid-user directive), adding special HTTP headers that are normally used to start the special SAML ECP (non-browser based) can be used to bypass authentication.

References: https://bugzilla.redhat.com/showbug.cgi?id=1576719

Upstream Patch: https://github.com/Uninett/modauthmellon/pull/196

Red Hat

Affected Software

14 affected componentsFixes available
redhat/mod_auth_mellon<0.14.2
0.14.2
debian/libapache2-mod-auth-mellon
0.17.0-1+deb11u10.18.1-10.19.1-1
Mod Auth Mellon Project Mod Auth Mellon Apache<0.14.2
Fedoraproject Fedora=29
Fedoraproject Fedora=30
redhat Enterprise Linux=7.0
redhat Enterprise Linux Desktop=7.0
redhat Enterprise Linux Server=7.0
redhat Enterprise Linux Server Aus=7.6
redhat Enterprise Linux Server Eus=7.6
redhat Enterprise Linux Server Tus=7.6
redhat Enterprise Linux Workstation=7.0
Canonical Ubuntu Linux=18.04
Canonical Ubuntu Linux=18.10

Event History

Mar 26, 2019
CVE Published
via MITRE·05:44 PM
Data Sourced
via MITRE·05:44 PM
DescriptionSeverityWeakness
Feb 23, 2026
Data Sourced
via Ubuntu·04:01 PM
RemedyDescriptionSeverityAffected Software
Data Sourced
via Launchpad·04:02 PM
Description
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Frequently Asked Questions

1

What is the severity of CVE-2019-3878?

The severity of CVE-2019-3878 is high with a CVSS score of 8.1.

2

How does the vulnerability CVE-2019-3878 affect mod_auth_mellon?

The vulnerability CVE-2019-3878 affects mod_auth_mellon versions before v0.14.2.

3

What is the recommended version to fix CVE-2019-3878?

To fix CVE-2019-3878, it is recommended to update to mod_auth_mellon v0.14.2 or later.

4

How can I mitigate the risk of CVE-2019-3878?

To mitigate the risk of CVE-2019-3878, you should update mod_auth_mellon to version 0.14.2 or apply the necessary patches.

5

Are there any references available for CVE-2019-3878?

Yes, you can find references for CVE-2019-3878 at the following links: [link1], [link2], [link3].

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