CVE-2016-6816

tomcat: HTTP Request smuggling vulnerability due to permitting invalid character in HTTP requests

Published Mar 20, 2017 CVSS 3.0 · 7.1 High EPSS 39.6% KEV · Not listed
Description
The code in Apache Tomcat 9.0.0.M1 to 9.0.0.M11, 8.5.0 to 8.5.6, 8.0.0.RC1 to 8.0.38, 7.0.0 to 7.0.72, and 6.0.0 to 6.0.47 that parsed the HTTP request line permitted invalid characters. This could be exploited, in conjunction with a proxy that also permitted the invalid characters but with a different interpretation, to inject data into the HTTP response. By manipulating the HTTP response the attacker could poison a web-cache, perform an XSS attack and/or obtain sensitive information from requests other then their own.

Remediation

No solution or workaround provided in the CVE record

Tracking

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Advisories

Source ID Title
Debian DLA Debian DLA DLA-728-1 tomcat6 security update
Debian DLA Debian DLA DLA-729-1 tomcat7 security update
Debian DLA Debian DLA DLA-779-1 tomcat7 security update
Debian DSA Debian DSA DSA-3738-1 tomcat7 security update
Debian DSA Debian DSA DSA-3739-1 tomcat8 security update
EUVD EUVD EUVD-2022-4326 The code in Apache Tomcat 9.0.0.M1 to 9.0.0.M11, 8.5.0 to 8.5.6, 8.0.0.RC1 to 8.0.38, 7.0.0 to 7.0.72, and 6.0.0 to 6.0.47 that parsed the HTTP request line permitted invalid characters. This could be exploited, in conjunction with a proxy that also permitted the invalid characters but with a different interpretation, to inject data into the HTTP response. By manipulating the HTTP response the attacker could poison a web-cache, perform an XSS attack and/or obtain sensitive information from requests other then their own.
Github GHSA Github GHSA GHSA-jc7p-5r39-9477 Improper Input Validation in Apache Tomcat
Ubuntu USN Ubuntu USN USN-3177-1 Tomcat vulnerabilities
Ubuntu USN Ubuntu USN USN-4557-1 Tomcat vulnerabilities
References
Link Providers
http://rhn.redhat.com/errata/RHSA-2017-0244.html cve-icon cve-icon
http://rhn.redhat.com/errata/RHSA-2017-0245.html cve-icon cve-icon
http://rhn.redhat.com/errata/RHSA-2017-0246.html cve-icon cve-icon
http://rhn.redhat.com/errata/RHSA-2017-0247.html cve-icon cve-icon
http://rhn.redhat.com/errata/RHSA-2017-0250.html cve-icon cve-icon
http://rhn.redhat.com/errata/RHSA-2017-0457.html cve-icon cve-icon
http://rhn.redhat.com/errata/RHSA-2017-0527.html cve-icon cve-icon
http://www.debian.org/security/2016/dsa-3738 cve-icon cve-icon
http://www.oracle.com/technetwork/security-advisory/cpuoct2017-3236626.html cve-icon cve-icon
http://www.securityfocus.com/bid/94461 cve-icon cve-icon
http://www.securitytracker.com/id/1037332 cve-icon cve-icon
https://access.redhat.com/articles/2991951 cve-icon
https://access.redhat.com/errata/RHSA-2017:0455 cve-icon cve-icon
https://access.redhat.com/errata/RHSA-2017:0456 cve-icon cve-icon
https://access.redhat.com/errata/RHSA-2017:0935 cve-icon cve-icon
https://access.redhat.com/solutions/2891171 cve-icon
https://lists.apache.org/thread.html/343558d982879bf88ec20dbf707f8c11255f8e219e81d45c4f8d0551%40%3Cdev.tomcat.apache.org%3E cve-icon cve-icon
https://lists.apache.org/thread.html/37220405a377c0182d2afdbc36461c4783b2930fbeae3a17f1333113%40%3Cdev.tomcat.apache.org%3E cve-icon cve-icon
https://lists.apache.org/thread.html/388a323769f1dff84c9ec905455aa73fbcb20338e3c7eb131457f708%40%3Cdev.tomcat.apache.org%3E cve-icon cve-icon
https://lists.apache.org/thread.html/39ae1f0bd5867c15755a6f959b271ade1aea04ccdc3b2e639dcd903b%40%3Cdev.tomcat.apache.org%3E cve-icon cve-icon
https://lists.apache.org/thread.html/3d19773b4cf0377db62d1e9328bf9160bf1819f04f988315086931d7%40%3Cdev.tomcat.apache.org%3E cve-icon cve-icon
https://lists.apache.org/thread.html/6af47120905aa7d8fe12f42e8ff2284fb338ba141d3b77b8c7cb61b3%40%3Cdev.tomcat.apache.org%3E cve-icon cve-icon
https://lists.apache.org/thread.html/845312a10aabbe2c499fca94003881d2c79fc993d85f34c1f5c77424%40%3Cdev.tomcat.apache.org%3E cve-icon cve-icon
https://lists.apache.org/thread.html/88855876c33f2f9c532ffb75bfee570ccf0b17ffa77493745af9a17a%40%3Cdev.tomcat.apache.org%3E cve-icon cve-icon
https://lists.apache.org/thread.html/b5e3f51d28cd5d9b1809f56594f2cf63dcd6a90429e16ea9f83bbedc%40%3Cdev.tomcat.apache.org%3E cve-icon cve-icon
https://lists.apache.org/thread.html/b84ad1258a89de5c9c853c7f2d3ad77e5b8b2930be9e132d5cef6b95%40%3Cdev.tomcat.apache.org%3E cve-icon cve-icon
https://lists.apache.org/thread.html/b8a1bf18155b552dcf9a928ba808cbadad84c236d85eab3033662cfb%40%3Cdev.tomcat.apache.org%3E cve-icon cve-icon
https://lists.apache.org/thread.html/r03c597a64de790ba42c167efacfa23300c3d6c9fe589ab87fe02859c%40%3Cdev.tomcat.apache.org%3E cve-icon cve-icon
https://lists.apache.org/thread.html/r587e50b86c1a96ee301f751d50294072d142fd6dc08a8987ae9f3a9b%40%3Cdev.tomcat.apache.org%3E cve-icon cve-icon
https://lists.apache.org/thread.html/r9136ff5b13e4f1941360b5a309efee2c114a14855578c3a2cbe5d19c%40%3Cdev.tomcat.apache.org%3E cve-icon cve-icon
https://nvd.nist.gov/vuln/detail/CVE-2016-6816 cve-icon
https://security.netapp.com/advisory/ntap-20180607-0001/ cve-icon cve-icon
https://tomcat.apache.org/security-6.html#Fixed_in_Apache_Tomcat_6.0.48 cve-icon cve-icon cve-icon
https://tomcat.apache.org/security-7.html#Fixed_in_Apache_Tomcat_7.0.73 cve-icon cve-icon cve-icon
https://tomcat.apache.org/security-8.html#Fixed_in_Apache_Tomcat_8.0.39 cve-icon cve-icon cve-icon
https://tomcat.apache.org/security-8.html#Fixed_in_Apache_Tomcat_8.5.8 cve-icon cve-icon cve-icon
https://tomcat.apache.org/security-9.html#Fixed_in_Apache_Tomcat_9.0.0.M13 cve-icon cve-icon
https://usn.ubuntu.com/4557-1/ cve-icon cve-icon
https://www.cve.org/CVERecord?id=CVE-2016-6816 cve-icon
https://www.exploit-db.com/exploits/41783/ cve-icon cve-icon
History
Type Values Removed Values Added
Metrics ssvc

{'options': {'Automatable': 'no', 'Exploitation': 'none', 'Technical Impact': 'partial'}, 'version': '2.0.3'}

Weaknesses

Sources

Status
PUBLISHED
Assigner
apache
Published
Updated
Nov 14, 2024, 8:05 PM
Reserved
Aug 12, 2016, 12:00 AM
Status
Modified
Published
Mar 20, 2017, 6:59 PM
Modified
Jun 17, 2026, 12:51 AM
Severity
Moderate
Public date
Nov 22, 2016, 12:00 AM