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CVE-2016-5388

Is CVE-2016-5388 real, exploitable, or a false positive? Here's the community verdict.

Community verdict: No field verdicts yet. Be the first practitioner to weigh in.

signals

public sources

Exploited in wild
Not listed
CISA KEV
Public exploit
None known
Metasploit/EDB/PoC
Base severity
8.1 High
CVSS
Exploitation prob.
51%
FIRST EPSS
Weakness
CWE-284
CWE

High severity and high exploitation probability. Prioritise remediation.

baseline read

auto · not a community verdict

Likely real & worth prioritising

High base severity and a high real-world exploitation probability both point to a genuine, actively targeted issue.

Based on CVSS · FIRST EPSS

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CVSS:3.0/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:H

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.

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    Same weakness: CWE-284.