(Add Vul: SSH) SSH 命令注入漏洞(CVE-2017-1000117)

README.md

@@ -111,6 +111,7 @@ docker run -d -p 80:8080 medicean/vulapps:s_struts2_s2-037
 
 * [Samba](./s/samba/)
 * [Shiro](./s/shiro/)
+* [SSH](./s/ssh/)
 * [Spring Boot](./s/springboot/)
 * [Struts2](./s/struts2/)
 * [Spring WebFlow](./s/springwebflow/)

s/README.md

@@ -2,6 +2,7 @@
 
 * [Samba](./samba/)
 * [Shiro](./shiro/)
+* [SSH](./ssh/)
 * [Spring Boot](./springboot/)
 * [Struts2](./struts2/)
 * [Spring WebFlow](./springwebflow/)

s/ssh/1/Dockerfile

@@ -0,0 +1,15 @@
+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
+
+RUN chown -R www-data:www-data /var/www/html
+
+EXPOSE 80
+CMD ["/start.sh"]

s/ssh/1/README.md

@@ -0,0 +1,69 @@
+## SSH 命令注入漏洞(CVE-2017-1000117)
+
+### 漏洞信息
+
+恶意人员可以通过巧妙构造 `ssh://…` 链接，让受害人在执行程序等情况下访问该恶意链接，从而达到命令执行的目的。
+
+### 影响范围
+
+#### 修复版本
+
+* Git v2.14.1、2.7.6、v2.8.6、v2.9.5、v2.10.4、v2.11.3、v2.12.4 和 v2.13.5
+
+### 镜像信息
+
+类型 | 值
+:-:|:-:
+Git | 1.9.1
+HTTP 端口 | 80
+镜像 tag | `s_ssh_1`
+
+### 获取环境:
+
+1. 拉取镜像到本地
+
+ ```
+$ docker pull medicean/vulapps:s_ssh_1
+ ```
+
+2. 启动环境
+
+ ```
+$ docker run -d -p 8000:80 medicean/vulapps:s_ssh_1
+ ```
+ > `-p 8000:80` 前面的 8000 代表物理机的端口，可随意指定。 
+
+ 访问 http://127.0.0.1:8000 
+
+### POC
+
+本环境中，模拟了远程导入仓库的情景。在该场景下攻击者可远程执行命令。配合本环境所使用的远程 PoC 仓库为：[https://github.com/VulApps/CVE-2017-1000117.git](https://github.com/VulApps/CVE-2017-1000117.git)
+
+1. 修改并提交远程 PoC 仓库的 [payload](https://github.com/VulApps/CVE-2017-1000117/blob/master/payload) 文件，内容为将要执行的命令
+
+ 本例中执行的命令为:
+
+ ```
+id > /var/www/html/vul
+ ```
+
+ > 若命令执行成功，则会在 `/var/www/html` 目录下生成 `vul` 文件，内容为 `id` 命令的执行结果(实际使用时可直接反弹 Shell)
+
+
+2. 访问目标页面，并填写要 import 的仓库地址
+
+ > 假如目标地址为： http://127.0.0.1:32774/
+
+ ![](https://github.com/Medicean/VulApps/raw/master/s/ssh/1/poc-1.png)
+
+3. 点击 import 之后，访问 `http://127.0.0.1:32774/vul`，看到执行结果
+
+ ![](https://github.com/Medicean/VulApps/raw/master/s/ssh/1/poc-2.png)
+
+### 相关链接
+
+* [VulApps/CVE-2017-1000117](https://github.com/VulApps/CVE-2017-1000117.git)
+* [SSH 命令注入漏洞(CVE-2017-1000117)分析](http://bobao.360.cn/learning/detail/4244.html)
+* [多款主流版本控制系统被曝存在客户端任意代码执行漏洞](http://m.bobao.360.cn/news/detail/4260.html)
+* [A PoC Repository for CVE-2017-1000117](https://gitlab.com/joernchen/CVE-2017-1000117)
+* [CVE-2017-1000117 - PoCs](https://github.com/Manouchehri/CVE-2017-1000117)

s/ssh/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

s/ssh/1/src/index.php

@@ -0,0 +1,22 @@
+<html>
+ <head>
+  <meta charset="utf-8">
+  <title>Repository Clone</title>
+ </head>
+ <body>
+    <p>CVE-2017-1000117 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-2017-1000117.git" style="width: 400px;height: 30px;margin-bottom: 10px;margin-top: 10px;"><br/>
+        <input type="submit" value="Submit" />
+    </form>
+<?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>

s/ssh/README.md

@@ -0,0 +1,4 @@
+SSH
+---
+
+1. [SSH 命令注入漏洞(CVE-2017-1000117)](./1)