Open redirect in Apache HTTP Server - CVE-2020-1927

Vulnerability identifier: #VU26527

CSH Severity: Medium

CVSS v4: 5.1 [CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:A/VC:L/VI:L/VA:N/SC:N/SI:N/SA:N]

CVE-ID: CVE-2020-1927

CWE-ID: CWE-601

Exploitation vector: Remote access

Exploit availability: No public exploit available

The vulnerability allows a remote attacker to redirect victims to arbitrary URL.

The vulnerability exists due to improper sanitization of user-supplied data in some "mod_rewrite" configurations. A remote attacker can create a link that leads to a trusted website, however, when clicked, redirects the victim to arbitrary domain.

Successful exploitation of this vulnerability may allow a remote attacker to perform a phishing attack and steal potentially sensitive information.

Apache HTTP Server
Arch Linux
ClevOS
Amazon Linux AMI
Red Hat Enterprise Linux for Scientific Computing
Red Hat Enterprise Linux Server
Red Hat Enterprise Linux Workstation
Red Hat Enterprise Linux Desktop
Red Hat Enterprise Linux for IBM z Systems
Red Hat Enterprise Linux for Power, big endian
Red Hat Enterprise Linux for Power, little endian
Red Hat Enterprise Linux for ARM 64
Red Hat Enterprise Linux for x86_64
Opensuse
Ubuntu
openEuler
Fedora
apache2 (Alpine package)
httpd (Red Hat package)
httpd24-httpd (Red Hat package)
apache2 (Debian package)
httpd24-mod_md (Red Hat package)
apache2-bin (Ubuntu package)
apache2 (Ubuntu package)
mod_ssl
mod_session
mod_proxy_html
mod_md
mod_ldap
httpd-tools
httpd
httpd-debuginfo
httpd-debugsource
httpd-devel
httpd-filesystem
httpd-help
libapache2-mod-proxy-uwsgi (Ubuntu package)
IBM API Connect
Dell Secure Connect Gateway
Oracle HTTP Server
Oracle SD-WAN Aware
Data Computing Appliance (DCA)
Maximo Application Suite - IoT Component

Install updates from vendor's website.

Apache HTTP Server - update to 2.4.42
apache2 (Alpine package) - update to 2.4.43-r0
httpd (Red Hat package) - update to 2.4.6-95.el7
httpd24-httpd (Red Hat package) - addressed in versions 2.4.34-18.el6, 2.4.34-18.el7
apache2 (Debian package) - update to 2.4.38-3+deb10u4
IBM API Connect - update to 5.0.8.12
Dell Secure Connect Gateway - update to 5.12.00.10
httpd24-mod_md (Red Hat package) - update to 2.0.8-1.el7
apache2-bin (Ubuntu package) - addressed in versions 2.4.18-2ubuntu3.17, 2.4.29-1ubuntu4.14, 2.4.41-4ubuntu3.12
apache2 (Ubuntu package) - addressed in versions 2.4.18-2ubuntu3.17, 2.4.29-1ubuntu4.14, 2.4.41-4ubuntu3.19
mod_ssl - update to 2.4.34-18
mod_session - update to 2.4.34-18
mod_proxy_html - update to 2.4.34-18
mod_md - update to 2.4.34-18
mod_ldap - update to 2.4.34-18
httpd-tools - update to 2.4.34-18
httpd - update to 2.4.34-18
httpd-debuginfo - update to 2.4.34-18
httpd-debugsource - update to 2.4.34-18
httpd-devel - update to 2.4.34-18
httpd-filesystem - update to 2.4.34-18
httpd-help - update to 2.4.34-18
libapache2-mod-proxy-uwsgi (Ubuntu package) - update to 2.4.41-4ubuntu3.1
httpd - addressed in versions 2.4.46-1.fc31, 2.4.46-1.fc32
Data Computing Appliance (DCA) - update to 4.3.0.0
Maximo Application Suite - IoT Component - addressed in versions 8.7.20, 8.8.16, 9.0.6

• https://httpd.apache.org/security/vulnerabilities_24.html

• Multiple vulnerabilities in Apache HTTP Server
• Arch Linux update for apache
• OpenSUSE Linux update for apache2
• Red Hat update for httpd
• Amazon Linux AMI update for httpd24
• Open redirect in apache2 (Alpine package)
• Debian update for apache2
• Red Hat Enterprise Linux 7 update for httpd
• Red Hat Enterprise Linux 8 update for the httpd:2.4 module
• Open redirect in Oracle SD-WAN Aware
• Multiple vulnerabilities in Oracle HTTP Server
• Multiple vulnerabilities in DELL Secure Connect Gateway Security
• Multiple vulnerabilities in IBM API Connect
• ClevOS update for IBM Cloud Object Storage Systems
• Multiple vulnerabilities in Dell EMC Data Computing Appliance (DCA)
• openEuler 20.03 LTS update for httpd
• Multiple vulnerabilities in IBM Maximo Application Suite - IoT Component
• Ubuntu update for apache2
• Fedora 32 update for httpd
• Fedora 31 update for httpd