Httpoxy issue - CVE-2016-5387

Vulnerability identifier: #VU337

CSH Severity: Medium

CVSS v4: 9.2 [CVSS:4.0/AV:N/AC:L/AT:P/PR:N/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N]

CVE-ID: CVE-2016-5387

CWE-ID: CWE-284

Exploitation vector: Remote access

Exploit availability: No public exploit available

The vulnerability allows a remote attacker to obtain potentially sensitive information and compromise vulnerable server.

The vulnerability exists due to a design error in multiple implementations of web servers. A remote unauthenticated attacker can use a specially crafted Proxy header in HTTP request to influence HTTP_PROXY environment variable and redirect application’s HTTP traffic to arbitrary proxy server.

Successful exploitation of this vulnerability may allow an attacker to gain unauthorized access to sensitive information and compromise vulnerable server.

This vulnerability is known as httppoxy.

Debian Linux
Amazon Linux AMI
Red Hat Enterprise Linux Workstation
Red Hat Enterprise Linux Desktop
Red Hat Enterprise Linux Server
Red Hat Enterprise Linux for IBM z Systems
Red Hat Enterprise Linux for Scientific Computing
Red Hat Enterprise Linux for Power, big endian
Red Hat Enterprise Linux for Power, little endian
Red Hat Enterprise Linux Server - AUS
Red Hat Enterprise Linux for IBM z Systems - Extended Update Support
Red Hat Enterprise Linux Server - TUS
Red Hat Enterprise Linux for Power, little endian - Extended Update Support
Red Hat Enterprise Linux for Power, big endian - Extended Update Support
Red Hat Enterprise Linux Server - Extended Update Support
Red Hat Enterprise Linux EUS Compute Node
Ubuntu
Slackware Linux
Fedora
FlashSystem 900 9840-AE2 and 9843-AE2
FlashSystem 840 9840-AE1 & 9843-AE1
Apache HTTP Server
apache2 (Alpine package)
perl-CGI-Emulate-PSGI
httpd (Red Hat package)
httpd
IBM Storwize V3700
IBM Storwize V5000
IBM Storwize V3500
IBM Storwize V7000
IBM FlashSystem V9000

apache2 (Alpine package) - update to 2.4.16-r1
perl-CGI-Emulate-PSGI - addressed in versions 0.22-1.fc23, 0.22-1.fc24
httpd (Red Hat package) - addressed in versions 2.2.3-92.el5_11, 2.2.15-54.el6_8, 2.4.6-40.el7_2.4
httpd - addressed in versions 2.4.23-4.fc23, 2.4.23-4.fc24
IBM Storwize V3700 - addressed in versions 7.6.1.6, 7.7.0.4, 7.7.1.3
IBM Storwize V5000 - addressed in versions 7.6.1.6, 7.7.0.4, 7.7.1.3
IBM Storwize V3500 - addressed in versions 7.6.1.6, 7.7.0.4, 7.7.1.3
IBM Storwize V7000 - addressed in versions 7.6.1.6, 7.7.0.4, 7.7.1.3
IBM FlashSystem V9000 - addressed in versions 7.6.1.6, 7.7.0.4, 7.7.1.3

• https://httpoxy.org/

• Multiple vulnerabilities in lighttpd
• Multiple vulnerabilities in Apache HTTP Server
• Ubuntu update for Apache HTTP Server
• Debian update for apache2
• Slackware Linux update for httpd
• Amazon Linux AMI update for httpd24, httpd
• Httpoxy issue in apache2 (Alpine package)
• Multiple vulnerabilities in IBM FlashSystem models 840 and 900
• Multiple vulnerabilities in SAN Volume Controller, Storwize family and FlashSystem V9000 products
• Fedora 23 update for httpd
• Fedora 24 update for httpd
• Fedora 23 update for perl-CGI-Emulate-PSGI
• Fedora 24 update for perl-CGI-Emulate-PSGI
• Red Hat Enterprise Linux 7 update for httpd
• Red Hat Enterprise Linux 5 and Red Hat Enterprise Linux 6 update for httpd