CVE-2019-20479 Open redirect in n/a

Medium 6.1 Published Updated

An open redirect vulnerability in mod_auth_openidc allows attackers to redirect users to malicious sites via crafted URLs with slashes and backslashes.

Exploited in the wild
Not known
Login needed
Not needed
Attackable
Over the internet
Victim action needed
A user has to click or open something
Fix
Available

What is CVE-2019-20479?

CVE-2019-20479 is a medium-severity vulnerability in Debian Debian Linux, published on 20 Feb 2020. An attacker can exploit it over the internet without logging in, and only if a user opens a file or follows a link.

Official description

A flaw was found in mod_auth_openidc before version 2.4.1. An open redirect issue exists in URLs with a slash and backslash at the beginning.

Weakness: CWE-601

Which versions are affected by CVE-2019-20479?

It affects 4 products.

Linux distribution packages (6)
apache2-mod_auth_openidc SUSE:Linux Enterprise Module for Server Applications 15 SP1All versions2.3.8-3.7.1
apache2-mod_auth_openidc SUSE:Linux Enterprise Server 12 SP4All versions2.4.0-3.11.1
apache2-mod_auth_openidc SUSE:Linux Enterprise Server 12 SP5All versions2.4.0-3.11.1
apache2-mod_auth_openidc SUSE:Linux Enterprise Server for SAP Applications 12 SP4All versions2.4.0-3.11.1
apache2-mod_auth_openidc SUSE:Linux Enterprise Server for SAP Applications 12 SP5All versions2.4.0-3.11.1
apache2-mod_auth_openidc openSUSE:Leap 15.1All versions2.3.8-lp151.2.6.1

Products include Debian Debian Linux, Fedoraproject Fedora, Openidc Mod Auth Openidc, Opensuse Leap.

How do I fix CVE-2019-20479?

Upgrade to a fixed version.

Is CVE-2019-20479 being exploited?

There is no known exploitation of CVE-2019-20479 in the wild and no public exploit code.

All Debian Debian Linux vulnerabilities

Sources

Also known as DEBIAN-CVE-2019-20479, DLA-2130-1, GHSA-5fmg-x3vm-cm8v, MGASA-2020-0129, SUSE-SU-2020:0705-1, SUSE-SU-2020:0706-1 and 1 more.

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