CVE-2016-6816
high
CVSS v3
7.1
CVSS v4 NEW
—
VIR risk
8.1
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.
Predictions
Exploit likelihood
100%
Patch ETA
—
Heuristic predictions, AS-IS, for prioritization only.
Mitigations
No mitigations published for this CVE yet.
The vendor-content worker queues fetches as references arrive (check back in a few minutes). Or — if you've already worked around this in production — publish your fix to the community-verified tier.
✚ Propose a mitigation on Community → Mitigations published via the community go through AI scoring + 2 human reviewers + 7-day silent objection window before landing here withsource_tier=community-verified.
Exploits
Public proof-of-concept code below. AS-IS, for defenders and authorised testing only.
Exploit-DB
Apache Tomcat 6/7/8/9 - Information Disclosure
Source code queued for fetch — refresh in a moment.
OS impact
SUSE Affected 1 release
| Version | Status | Fixed in |
|---|---|---|
| — | Affected | — |
Debian Fixed 5 releases
| Version | Status | Fixed in |
|---|---|---|
| trixie | Fixed | 0 |
| sid | Fixed | 0 |
| forky | Fixed | 0 |
| bullseye | Fixed | 0 |
| bookworm | Fixed | 0 |
Package impact
| Ecosystem | Package | Vulnerable | Fixed |
|---|---|---|---|
| Maven | org.apache.tomcat:tomcat-coyote | >=9.0.0.M1,<9.0.0.M12 | 9.0.0.M12 |
| Maven | org.apache.tomcat:tomcat-coyote | >=8.5.0,<8.5.8 | 8.5.8 |
| Maven | org.apache.tomcat:tomcat-coyote | >=8.0.0RC1,<8.0.39 | 8.0.39 |
| Maven | org.apache.tomcat:tomcat-coyote | >=7.0.0,<7.0.73 | 7.0.73 |
| Maven | org.apache.tomcat:tomcat-coyote | >=6.0.0,<6.0.48 | 6.0.48 |
Application impact
| Vendor | Product | Versions | Fixed |
|---|---|---|---|
| apache | tomcat | 6.0.0 | |
| apache | tomcat | 6.0.1 | |
| apache | tomcat | 6.0.2 | |
| apache | tomcat | 6.0.3 | |
| apache | tomcat | 6.0.4 | |
| apache | tomcat | 6.0.5 | |
| apache | tomcat | 6.0.6 | |
| apache | tomcat | 6.0.7 | |
| apache | tomcat | 6.0.8 | |
| apache | tomcat | 6.0.9 | |
| apache | tomcat | 6.0.10 | |
| apache | tomcat | 6.0.11 | |
| apache | tomcat | 6.0.12 | |
| apache | tomcat | 6.0.13 | |
| apache | tomcat | 6.0.14 | |
| apache | tomcat | 6.0.15 | |
| apache | tomcat | 6.0.16 | |
| apache | tomcat | 6.0.17 | |
| apache | tomcat | 6.0.18 | |
| apache | tomcat | 6.0.19 | |
| apache | tomcat | 6.0.20 | |
| apache | tomcat | 6.0.21 | |
| apache | tomcat | 6.0.22 | |
| apache | tomcat | 6.0.23 | |
| apache | tomcat | 6.0.24 | |
| apache | tomcat | 6.0.25 | |
| apache | tomcat | 6.0.26 | |
| apache | tomcat | 6.0.27 | |
| apache | tomcat | 6.0.28 | |
| apache | tomcat | 6.0.29 | |
| apache | tomcat | 6.0.30 | |
| apache | tomcat | 6.0.31 | |
| apache | tomcat | 6.0.32 | |
| apache | tomcat | 6.0.33 | |
| apache | tomcat | 6.0.34 | |
| apache | tomcat | 6.0.35 | |
| apache | tomcat | 6.0.36 | |
| apache | tomcat | 6.0.37 | |
| apache | tomcat | 6.0.38 | |
| apache | tomcat | 6.0.39 | |
| apache | tomcat | 6.0.40 | |
| apache | tomcat | 6.0.41 | |
| apache | tomcat | 6.0.42 | |
| apache | tomcat | 6.0.43 | |
| apache | tomcat | 6.0.44 | |
| apache | tomcat | 6.0.45 | |
| apache | tomcat | 6.0.46 | |
| apache | tomcat | 6.0.47 | |
| apache | tomcat | 7.0.0 | |
| apache | tomcat | 7.0.1 | |
| apache | tomcat | 7.0.2 | |
| apache | tomcat | 7.0.3 | |
| apache | tomcat | 7.0.4 | |
| apache | tomcat | 7.0.5 | |
| apache | tomcat | 7.0.6 | |
| apache | tomcat | 7.0.7 | |
| apache | tomcat | 7.0.8 | |
| apache | tomcat | 7.0.9 | |
| apache | tomcat | 7.0.10 | |
| apache | tomcat | 7.0.11 | |
| apache | tomcat | 7.0.12 | |
| apache | tomcat | 7.0.13 | |
| apache | tomcat | 7.0.14 | |
| apache | tomcat | 7.0.15 | |
| apache | tomcat | 7.0.16 | |
| apache | tomcat | 7.0.17 | |
| apache | tomcat | 7.0.18 | |
| apache | tomcat | 7.0.19 | |
| apache | tomcat | 7.0.20 | |
| apache | tomcat | 7.0.21 | |
| apache | tomcat | 7.0.22 | |
| apache | tomcat | 7.0.23 | |
| apache | tomcat | 7.0.24 | |
| apache | tomcat | 7.0.25 | |
| apache | tomcat | 7.0.26 | |
| apache | tomcat | 7.0.27 | |
| apache | tomcat | 7.0.28 | |
| apache | tomcat | 7.0.29 | |
| apache | tomcat | 7.0.30 | |
| apache | tomcat | 7.0.31 | |
| apache | tomcat | 7.0.32 | |
| apache | tomcat | 7.0.33 | |
| apache | tomcat | 7.0.34 | |
| apache | tomcat | 7.0.35 | |
| apache | tomcat | 7.0.36 | |
| apache | tomcat | 7.0.37 | |
| apache | tomcat | 7.0.38 | |
| apache | tomcat | 7.0.39 | |
| apache | tomcat | 7.0.40 | |
| apache | tomcat | 7.0.41 | |
| apache | tomcat | 7.0.42 | |
| apache | tomcat | 7.0.43 | |
| apache | tomcat | 7.0.44 | |
| apache | tomcat | 7.0.45 | |
| apache | tomcat | 7.0.46 | |
| apache | tomcat | 7.0.47 | |
| apache | tomcat | 7.0.48 | |
| apache | tomcat | 7.0.49 | |
| apache | tomcat | 7.0.50 | |
| apache | tomcat | 7.0.51 | |
| apache | tomcat | 7.0.52 | |
| apache | tomcat | 7.0.53 | |
| apache | tomcat | 7.0.54 | |
| apache | tomcat | 7.0.55 | |
| apache | tomcat | 7.0.56 | |
| apache | tomcat | 7.0.57 | |
| apache | tomcat | 7.0.58 | |
| apache | tomcat | 7.0.59 | |
| apache | tomcat | 7.0.60 | |
| apache | tomcat | 7.0.61 | |
| apache | tomcat | 7.0.62 | |
| apache | tomcat | 7.0.63 | |
| apache | tomcat | 7.0.64 | |
| apache | tomcat | 7.0.65 | |
| apache | tomcat | 7.0.66 | |
| apache | tomcat | 7.0.67 | |
| apache | tomcat | 7.0.68 | |
| apache | tomcat | 7.0.69 | |
| apache | tomcat | 7.0.70 | |
| apache | tomcat | 7.0.71 | |
| apache | tomcat | 7.0.72 | |
| apache | tomcat | 8.0.0 | |
| apache | tomcat | 8.0.1 | |
| apache | tomcat | 8.0.2 | |
| apache | tomcat | 8.0.3 | |
| apache | tomcat | 8.0.4 | |
| apache | tomcat | 8.0.5 | |
| apache | tomcat | 8.0.6 | |
| apache | tomcat | 8.0.7 | |
| apache | tomcat | 8.0.8 | |
| apache | tomcat | 8.0.9 | |
| apache | tomcat | 8.0.10 | |
| apache | tomcat | 8.0.11 | |
| apache | tomcat | 8.0.12 | |
| apache | tomcat | 8.0.13 | |
| apache | tomcat | 8.0.14 | |
| apache | tomcat | 8.0.15 | |
| apache | tomcat | 8.0.16 | |
| apache | tomcat | 8.0.17 | |
| apache | tomcat | 8.0.18 | |
| apache | tomcat | 8.0.19 | |
| apache | tomcat | 8.0.20 | |
| apache | tomcat | 8.0.21 | |
| apache | tomcat | 8.0.22 | |
| apache | tomcat | 8.0.23 | |
| apache | tomcat | 8.0.24 | |
| apache | tomcat | 8.0.25 | |
| apache | tomcat | 8.0.26 | |
| apache | tomcat | 8.0.27 | |
| apache | tomcat | 8.0.28 | |
| apache | tomcat | 8.0.29 | |
| apache | tomcat | 8.0.30 | |
| apache | tomcat | 8.0.31 | |
| apache | tomcat | 8.0.32 | |
| apache | tomcat | 8.0.33 | |
| apache | tomcat | 8.0.34 | |
| apache | tomcat | 8.0.35 | |
| apache | tomcat | 8.0.36 | |
| apache | tomcat | 8.0.37 | |
| apache | tomcat | 8.0.38 | |
| apache | tomcat | 8.5.0 | |
| apache | tomcat | 8.5.1 | |
| apache | tomcat | 8.5.2 | |
| apache | tomcat | 8.5.3 | |
| apache | tomcat | 8.5.4 | |
| apache | tomcat | 8.5.5 | |
| apache | tomcat | 8.5.6 | |
| apache | tomcat | 9.0.0 | |
References
- http://rhn.redhat.com/errata/RHSA-2017-0244.html
- http://rhn.redhat.com/errata/RHSA-2017-0245.html
- http://rhn.redhat.com/errata/RHSA-2017-0246.html
- http://rhn.redhat.com/errata/RHSA-2017-0247.html
- http://rhn.redhat.com/errata/RHSA-2017-0250.html
- http://rhn.redhat.com/errata/RHSA-2017-0457.html
- http://rhn.redhat.com/errata/RHSA-2017-0527.html
- http://www.debian.org/security/2016/dsa-3738
- http://www.oracle.com/technetwork/security-advisory/cpuoct2017-3236626.html
- http://www.securityfocus.com/bid/94461
- http://www.securitytracker.com/id/1037332
- https://access.redhat.com/errata/RHSA-2017:0455
- https://access.redhat.com/errata/RHSA-2017:0456
- https://access.redhat.com/errata/RHSA-2017:0935
- https://lists.apache.org/thread.html/343558d982879bf88ec20dbf707f8c11255f8e219e81d45c4f8d0551%40%3Cdev.tomcat.apache.org%3E
- https://lists.apache.org/thread.html/37220405a377c0182d2afdbc36461c4783b2930fbeae3a17f1333113%40%3Cdev.tomcat.apache.org%3E
- https://lists.apache.org/thread.html/388a323769f1dff84c9ec905455aa73fbcb20338e3c7eb131457f708%40%3Cdev.tomcat.apache.org%3E
- https://lists.apache.org/thread.html/39ae1f0bd5867c15755a6f959b271ade1aea04ccdc3b2e639dcd903b%40%3Cdev.tomcat.apache.org%3E
- https://lists.apache.org/thread.html/3d19773b4cf0377db62d1e9328bf9160bf1819f04f988315086931d7%40%3Cdev.tomcat.apache.org%3E
- https://lists.apache.org/thread.html/6af47120905aa7d8fe12f42e8ff2284fb338ba141d3b77b8c7cb61b3%40%3Cdev.tomcat.apache.org%3E
- https://lists.apache.org/thread.html/845312a10aabbe2c499fca94003881d2c79fc993d85f34c1f5c77424%40%3Cdev.tomcat.apache.org%3E
- https://lists.apache.org/thread.html/88855876c33f2f9c532ffb75bfee570ccf0b17ffa77493745af9a17a%40%3Cdev.tomcat.apache.org%3E
- https://lists.apache.org/thread.html/b5e3f51d28cd5d9b1809f56594f2cf63dcd6a90429e16ea9f83bbedc%40%3Cdev.tomcat.apache.org%3E
- https://lists.apache.org/thread.html/b84ad1258a89de5c9c853c7f2d3ad77e5b8b2930be9e132d5cef6b95%40%3Cdev.tomcat.apache.org%3E
- https://lists.apache.org/thread.html/b8a1bf18155b552dcf9a928ba808cbadad84c236d85eab3033662cfb%40%3Cdev.tomcat.apache.org%3E
CWEs
CWE-20
Community-verified mitigations for this CVE will appear above when contributors publish them.
Verify integrity in audit chain (admin only). AS-IS.