What’s Vulnerable › Vulnerabilities
CVE-2016-5388
- Severity: high (CVSS 8.1 v3.0)
- Exploited in the wild: not listed in CISA KEV
- EPSS: 50.9% probability of exploitation in the next 30 days
- Public exploit or detection template: none known
- Published: 2016-07-19 · updated 2026-10-15
- Weakness: CWE-284
Description
Apache Tomcat 7.x through 7.0.70 and 8.x through 8.5.4, when the CGI Servlet is enabled, follows RFC 3875 section 4.1.18 and therefore does not protect applications from the presence of untrusted client data in the HTTP_PROXY environment variable, which might allow remote attackers to redirect an application's outbound HTTP traffic to an arbitrary proxy server via a crafted Proxy header in an HTTP request, aka an "httpoxy" issue. NOTE: the vendor states "A mitigation is planned for future releases of Tomcat, tracked as CVE-2016-5388"; in other words, this is not a CVE ID for a vulnerability.
Affected products
- Apache Tomcat: from 6.0 through 6.0.45; from 7.0 through 7.0.70; from 8.0 through 8.5.4
- Hewlett Packard Enterprise System Management Homepage for Windows and Linux: through 7.5.5.0
- Oracle Corporation Oracle Linux: 6, 7
- RedHat Enterprise Linux Desktop: 7.0, 6.0
- RedHat Enterprise Linux Hpc Node: 7.0, 6.0
- RedHat Enterprise Linux Hpc Node Eus: 7.2
- RedHat Enterprise Linux Server: 7.0, 6.0
- RedHat Enterprise Linux Server Aus: 7.2
- RedHat Enterprise Linux Server Eus: 7.2
- RedHat Enterprise Linux Server Tus: 7.2
- RedHat Enterprise Linux Workstation: 7.0, 6.0
References
- http://lists.opensuse.org/opensuse-updates/2016-09/msg00025.html
- http://rhn.redhat.com/errata/RHSA-2016-1624.html
- http://rhn.redhat.com/errata/RHSA-2016-2045.html
- http://rhn.redhat.com/errata/RHSA-2016-2046.html
- http://www.kb.cert.org/vuls/id/797896
- http://www.oracle.com/technetwork/security-advisory/cpujul2017-3236622.html
- http://www.oracle.com/technetwork/topics/security/linuxbulletinoct2016-3090545.html
- http://www.securityfocus.com/bid/91818
- http://www.securitytracker.com/id/1036331
- https://access.redhat.com/errata/RHSA-2016:1635
- https://access.redhat.com/errata/RHSA-2016:1636
- https://h20566.www2.hpe.com/hpsc/doc/public/display?docLocale=en_US&docId=emr_na-hpesbhf03770en_us
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