JVN/CVE Demo: Cvereves

CVE Reference

Id: 764518
CVE No.: CVE-2016-10142
Reference: MISC:https://tools.ietf.org/html/rfc8021

Actions

History
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Request History
4 previous requests available
====
Session
+
Session
- 0(null)
====
Request
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Request

Cake Params
- plugin(null)
- controllercvereves
- actionview
- named(empty)
- pass(array)
  0764518
Post data

No post data.

Query string

No querystring data.

Cookie

To view Cookies, add CookieComponent to Controller

Current Route
- keys(array)
  0controller
  1action
- options(array)
  defaultRoute(true)
- defaults(array)
  plugin(null)
- template/:controller/:action/*
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Sql Log
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Sql Logs

default
No query logs.

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Timer

Memory

Peak Memory Use 3.48 MB

Message	Memory use
Component initialization	1.38 MB
Controller action start	1.49 MB
Controller render start	2.14 MB
View render complete	2.53 MB

Timers

Total Request Time: 15 (ms)

Message	Time in ms	Graph
Core Processing (Derived from $_SERVER["REQUEST_TIME"])	2.58
Event: Controller.initialize	0.02
Event: Controller.startup	0.06
Controller action	2.60
Event: Controller.beforeRender	3.97
» Processing toolbar data	3.90
Rendering View	1.89
» Event: View.beforeRender	0.02
» Rendering APP/View/Cvereves/view.ctp	1.04
» Event: View.afterRender	0.02
» Event: View.beforeLayout	0.02
» Rendering APP/View/Layouts/default.ctp	0.47
» » Rendering CORE/Cake/View/Elements/sql_dump.ctp	0.07
Event: View.afterLayout	0.00

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Log
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Logs

There were no log entries made this request

====
Variables
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View Variables
- cveref(array)
  Cveref(array)
  id764518
  cveinfo_id87647
  name(null)
  cveinfo_nameCVE-2016-10142
  referenceMISC:https://tools.ietf.org/html/rfc8021
  deleted(null)
  created0000-00-00 00:00:00
  modified0000-00-00 00:00:00
  Cveinfo(array)
  id87647
  nameCVE-2016-10142
  statusCandidate
  descriptionAn issue was discovered in the IPv6 protocol specification, related to ICMP Packet Too Big (PTB) messages. (The scope of this CVE is all affected IPv6 implementations from all vendors.) The security implications of IP fragmentation have been discussed at length in [RFC6274] and [RFC7739]. An attacker can leverage the generation of IPv6 atomic fragments to trigger the use of fragmentation in an arbitrary IPv6 flow (in scenarios in which actual fragmentation of packets is not needed) and can subsequently perform any type of fragmentation-based attack against legacy IPv6 nodes that do not implement [RFC6946]. That is, employing fragmentation where not actually needed allows for fragmentation-based attack vectors to be employed, unnecessarily. We note that, unfortunately, even nodes that already implement [RFC6946] can be subject to DoS attacks as a result of the generation of IPv6 atomic fragments. Let us assume that Host A is communicating with Host B and that, as a result of the widespread dropping of IPv6 packets that contain extension headers (including fragmentation) [RFC7872], some intermediate node filters fragments between Host B and Host A. If an attacker sends a forged ICMPv6 PTB error message to Host B, reporting an MTU smaller than 1280, this will trigger the generation of IPv6 atomic fragments from that moment on (as required by [RFC2460]). When Host B starts sending IPv6 atomic fragments (in response to the received ICMPv6 PTB error message), these packets will be dropped, since we previously noted that IPv6 packets with extension headers were being dropped between Host B and Host A. Thus, this situation will result in a DoS scenario. Another possible scenario is that in which two BGP peers are employing IPv6 transport and they implement Access Control Lists (ACLs) to drop IPv6 fragments (to avoid control-plane attacks). If the aforementioned BGP peers drop IPv6 fragments but still honor received ICMPv6 PTB error messages, an attacker could easily attack the corresponding peering session by simply sending an ICMPv6 PTB message with a reported MTU smaller than 1280 bytes. Once the attack packet has been sent, the aforementioned routers will themselves be the ones dropping their own traffic.
  phaseAssigned (20170114)
  votesNone (candidate not yet proposed)
  comments(null)
  deleted(null)
  created0000-00-00 00:00:00
  modified0000-00-00 00:00:00
- $request->data(empty)
- $this->validationErrors(array)
  Cveref(empty)
  Cveinfo(empty)
- Loaded Helpers(array)
  0Number
  1SimpleGraph
  2DebugTimer
  3Toolbar
  4Html
  5Text
  6Form
  7Session
  8HtmlToolbar
====

Environment

App Constants

No application environment available.

CakePHP Constants

Constant	Value
APP	/virtual/inogo77/public_html/jvn/app/
APP_DIR	app
APPLIBS	/virtual/inogo77/public_html/jvn/app/Lib/
CACHE	/virtual/inogo77/public_html/jvn/app/tmp/cache/
CAKE	/virtual/inogo77/public_html/jvn/lib/Cake/
CAKE_CORE_INCLUDE_PATH	/virtual/inogo77/public_html/jvn/lib
CORE_PATH	/virtual/inogo77/public_html/jvn/lib/
CAKE_VERSION	2.6.0
CSS	/virtual/inogo77/public_html/jvn/app/webroot/css/
CSS_URL	css/
DS	/
FULL_BASE_URL	http://inogo77.s500.xrea.com
IMAGES	/virtual/inogo77/public_html/jvn/app/webroot/img/
IMAGES_URL	img/
JS	/virtual/inogo77/public_html/jvn/app/webroot/js/
JS_URL	js/
LOGS	/virtual/inogo77/public_html/jvn/app/tmp/logs/
ROOT	/virtual/inogo77/public_html/jvn
TESTS	/virtual/inogo77/public_html/jvn/app/Test/
TMP	/virtual/inogo77/public_html/jvn/app/tmp/
VENDORS	/virtual/inogo77/public_html/jvn/vendors/
WEBROOT_DIR	webroot
WWW_ROOT	/virtual/inogo77/public_html/jvn/app/webroot/

PHP Environment

Environment Variable	Value
Php Version	5.6.40
Phprc	php56.ini
Php Fcgi Children	1
Pwd	/virtual/inogo77/public_html/.fast-cgi-bin
Php Fcgi Max Requests	10000
Shlvl	0
Path	/usr/local/bin:/usr/bin:/bin
Script Name	/jvn/app/webroot/index.php
Request Uri	/jvn/cvereves/view/764518
Query String
Request Method	GET
Server Protocol	HTTP/1.1
Gateway Interface	CGI/1.1
Redirect Url	/jvn/app/webroot/cvereves/view/764518
Remote Port	14897
Script Filename	/virtual/inogo77/public_html/jvn/app/webroot/index.php
Server Admin	[no address given]
Context Document Root	/virtual/inogo77/public_html
Context Prefix
Request Scheme	http
Document Root	/virtual/inogo77/public_html
Remote Addr	216.73.216.154
Server Port	80
Server Addr	160.251.151.205
Server Name	inogo77.s500.xrea.com
Server Software	Apache
Server Signature
Http Connection	close
Http Cache Control	max-age=259200
Http X Forwarded For	10.1.14.45
Http Via	1.1 squid-proxy-5b5d847c96-mw4wx (squid/6.10)
Http Host	inogo77.s500.xrea.com
Http Accept Encoding	gzip, br, zstd, deflate
Http User Agent	Mozilla/5.0 AppleWebKit/537.36 (KHTML, like Gecko; compatible; ClaudeBot/1.0; +claudebot@anthropic.com)
Http Accept	/
Gem Home	/usr/local/rvm/gems/ruby-2.3.0
Suspectdos	1
X Dostranslated Ip	216.73.216.154
Mm Country Code	US
Mmdb Info	result found
Mmdb Addr	216.73.216.154
Unique Id	aJPSBidml_e-F7NP5i0OTwAAAdI
Redirect Status	200
Redirect Gem Home	/usr/local/rvm/gems/ruby-2.3.0
Redirect Suspectdos	1
Redirect X Dostranslated Ip	216.73.216.154
Redirect Mm Country Code	US
Redirect Mmdb Info	result found
Redirect Mmdb Addr	216.73.216.154
Redirect Unique Id	aJPSBidml_e-F7NP5i0OTwAAAdI
Redirect Redirect Status	200
Redirect Redirect Gem Home	/usr/local/rvm/gems/ruby-2.3.0
Redirect Redirect Suspectdos	1
Redirect Redirect X Dostranslated Ip	216.73.216.154
Redirect Redirect Mm Country Code	US
Redirect Redirect Mmdb Info	result found
Redirect Redirect Mmdb Addr	216.73.216.154
Redirect Redirect Unique Id	aJPSBidml_e-F7NP5i0OTwAAAdI
Fcgi Role	RESPONDER
Php Self	/jvn/app/webroot/index.php
Request Time Float	1754518022.3332
Request Time	1754518022

====

Include
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Included Files

Include Paths
- 0/virtual/inogo77/public_html/jvn/lib
- 2/opt/remi/php56/root/usr/share/pear
- 3/opt/remi/php56/root/usr/share/php
- 4/usr/share/pear
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- 6-> /virtual/inogo77/public_html/jvn/lib/Cake/
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- app(array)
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  11DebugKit/Lib/DebugTimer.php
  Log(array)
  0DebugKit/Lib/Log/Engine/DebugKitLog.php
====

CVE Reference

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