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Advisory details: gitlab / maven/org.apache.tomcat/tomcat/CVE-2016-6816
Advisory ID gitlab/maven/org.apache.tomcat/tomcat/CVE-2016-6816
Aliases CVE-2016-6816
GHSA-jc7p-5r39-9477
Summary Improper Input Validation 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.
Status Published
Exploitability 2.0
Weighted Severity 0.0
Risk
Affected and Fixed Packages Package Details
Introduced and Fixed Package Commit Patches Package Commit Patches Details
Weaknesses (4)
Reference id Reference type URL
http://rhn.redhat.com/errata/RHSA-2017-0457.html
https://access.redhat.com/errata/RHSA-2017:0455
https://access.redhat.com/errata/RHSA-2017:0456
https://lists.apache.org/thread.html/343558d982879bf88ec20dbf707f8c11255f8e219e81d45c4f8d0551@%3Cdev.tomcat.apache.org%3E
https://lists.apache.org/thread.html/37220405a377c0182d2afdbc36461c4783b2930fbeae3a17f1333113@%3Cdev.tomcat.apache.org%3E
https://lists.apache.org/thread.html/388a323769f1dff84c9ec905455aa73fbcb20338e3c7eb131457f708@%3Cdev.tomcat.apache.org%3E
https://lists.apache.org/thread.html/39ae1f0bd5867c15755a6f959b271ade1aea04ccdc3b2e639dcd903b@%3Cdev.tomcat.apache.org%3E
https://lists.apache.org/thread.html/3d19773b4cf0377db62d1e9328bf9160bf1819f04f988315086931d7@%3Cdev.tomcat.apache.org%3E
https://lists.apache.org/thread.html/6af47120905aa7d8fe12f42e8ff2284fb338ba141d3b77b8c7cb61b3@%3Cdev.tomcat.apache.org%3E
https://lists.apache.org/thread.html/845312a10aabbe2c499fca94003881d2c79fc993d85f34c1f5c77424@%3Cdev.tomcat.apache.org%3E
https://lists.apache.org/thread.html/88855876c33f2f9c532ffb75bfee570ccf0b17ffa77493745af9a17a@%3Cdev.tomcat.apache.org%3E
https://lists.apache.org/thread.html/b5e3f51d28cd5d9b1809f56594f2cf63dcd6a90429e16ea9f83bbedc@%3Cdev.tomcat.apache.org%3E
https://lists.apache.org/thread.html/b84ad1258a89de5c9c853c7f2d3ad77e5b8b2930be9e132d5cef6b95@%3Cdev.tomcat.apache.org%3E
https://lists.apache.org/thread.html/b8a1bf18155b552dcf9a928ba808cbadad84c236d85eab3033662cfb@%3Cdev.tomcat.apache.org%3E
https://lists.apache.org/thread.html/r03c597a64de790ba42c167efacfa23300c3d6c9fe589ab87fe02859c@%3Cdev.tomcat.apache.org%3E
https://lists.apache.org/thread.html/r587e50b86c1a96ee301f751d50294072d142fd6dc08a8987ae9f3a9b@%3Cdev.tomcat.apache.org%3E
https://lists.apache.org/thread.html/r9136ff5b13e4f1941360b5a309efee2c114a14855578c3a2cbe5d19c@%3Cdev.tomcat.apache.org%3E
https://security.netapp.com/advisory/ntap-20180607-0001/
https://tomcat.apache.org/security-6.html#Fixed_in_Apache_Tomcat_6.0.48
https://tomcat.apache.org/security-7.html#Fixed_in_Apache_Tomcat_7.0.73
https://tomcat.apache.org/security-8.html#Fixed_in_Apache_Tomcat_8.0.39
https://tomcat.apache.org/security-8.html#Fixed_in_Apache_Tomcat_8.5.8
https://tomcat.apache.org/security-9.html#Fixed_in_Apache_Tomcat_9.0.0.M13
https://usn.ubuntu.com/4557-1/
https://www.exploit-db.com/exploits/41783/
http://www.debian.org/security/2016/dsa-3738
http://www.oracle.com/technetwork/security-advisory/cpuoct2017-3236626.html
CVE-2016-6816 https://nvd.nist.gov/vuln/detail/CVE-2016-6816
GHSA-jc7p-5r39-9477 https://github.com/advisories/GHSA-jc7p-5r39-9477
RHSA-2017-0244.html http://rhn.redhat.com/errata/RHSA-2017-0244.html
RHSA-2017-0245.html http://rhn.redhat.com/errata/RHSA-2017-0245.html
RHSA-2017-0246.html http://rhn.redhat.com/errata/RHSA-2017-0246.html
RHSA-2017-0247.html http://rhn.redhat.com/errata/RHSA-2017-0247.html
RHSA-2017-0250.html http://rhn.redhat.com/errata/RHSA-2017-0250.html
RHSA-2017-0527.html http://rhn.redhat.com/errata/RHSA-2017-0527.html
RHSA-2017:0935 https://access.redhat.com/errata/RHSA-2017:0935
Data source Exploit-DB
Date added April 3, 2017
Description Apache Tomcat 6/7/8/9 - Information Disclosure
Ransomware campaign use Unknown
Source publication date April 4, 2017
Exploit type remote
Platform multiple
Source update date April 3, 2017

No EPSS data available for this advisory.

Patch URL
There are no known patches.
Vector: AV:N/AC:M/Au:N/C:P/I:P/A:P Found at https://gitlab.com/gitlab-org/advisories-community/-/blob/main/maven/org.apache.tomcat/tomcat/CVE-2016-6816.yml
Exploitability (E) Access Vector (AV) Access Complexity (AC) Authentication (Au) Confidentiality Impact (C) Integrity Impact (I) Availability Impact (A)

high

functional

unproven

proof_of_concept

not_defined

local

adjacent_network

network

high

medium

low

multiple

single

none

none

partial

complete

none

partial

complete

none

partial

complete

Vector: CVSS:3.0/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:L Found at https://gitlab.com/gitlab-org/advisories-community/-/blob/main/maven/org.apache.tomcat/tomcat/CVE-2016-6816.yml
Attack Vector (AV) Attack Complexity (AC) Privileges Required (PR) User Interaction (UI) Scope (S) Confidentiality Impact (C) Integrity Impact (I) Availability Impact (A)

network

adjacent_network

local

physical

low

high

none

low

high

none

required

unchanged

changed

high

low

none

high

low

none

high

low

none

Vector: SSVCv2/E:N/A:N/T:P/P:M/B:A/M:M/D:T/2023-12-12T21:25:30Z/

Decision: Track

Source URL: https://github.com/cisagov/vulnrichment/blob/develop/2016/6xxx/CVE-2016-6816.json

Source Advisory: vulnrichment/CVE-2016-6816

View SSVC decision tree
[{'Exploitation': 'none'},
 {'Automatable': 'no'},
 {'Technical Impact': 'partial'},
 {'Mission Prevalence': 'minimal'},
 {'Public Well-being Impact': 'material'},
 {'Mission & Well-being': 'medium'}]