Vulnerabilities > CVE-2014-2044 - Code Injection vulnerability in Owncloud
Attack vector
NETWORK Attack complexity
LOW Privileges required
NONE Confidentiality impact
PARTIAL Integrity impact
PARTIAL Availability impact
PARTIAL Summary
Incomplete blacklist vulnerability in ajax/upload.php in ownCloud before 5.0, when running on Windows, allows remote authenticated users to bypass intended access restrictions, upload files with arbitrary names, and execute arbitrary code via an Alternate Data Stream (ADS) syntax in the filename parameter, as demonstrated using .htaccess::$DATA to upload a PHP program.
Vulnerable Configurations
Common Weakness Enumeration (CWE)
Common Attack Pattern Enumeration and Classification (CAPEC)
- Leverage Executable Code in Non-Executable Files An attack of this type exploits a system's trust in configuration and resource files, when the executable loads the resource (such as an image file or configuration file) the attacker has modified the file to either execute malicious code directly or manipulate the target process (e.g. application server) to execute based on the malicious configuration parameters. Since systems are increasingly interrelated mashing up resources from local and remote sources the possibility of this attack occurring is high. The attack can be directed at a client system, such as causing buffer overrun through loading seemingly benign image files, as in Microsoft Security Bulletin MS04-028 where specially crafted JPEG files could cause a buffer overrun once loaded into the browser. Another example targets clients reading pdf files. In this case the attacker simply appends javascript to the end of a legitimate url for a pdf (http://www.gnucitizen.org/blog/danger-danger-danger/) http://path/to/pdf/file.pdf#whatever_name_you_want=javascript:your_code_here The client assumes that they are reading a pdf, but the attacker has modified the resource and loaded executable javascript into the client's browser process. The attack can also target server processes. The attacker edits the resource or configuration file, for example a web.xml file used to configure security permissions for a J2EE app server, adding role name "public" grants all users with the public role the ability to use the administration functionality. The server trusts its configuration file to be correct, but when they are manipulated, the attacker gains full control.
- Manipulating User-Controlled Variables This attack targets user controlled variables (DEBUG=1, PHP Globals, and So Forth). An attacker can override environment variables leveraging user-supplied, untrusted query variables directly used on the application server without any data sanitization. In extreme cases, the attacker can change variables controlling the business logic of the application. For instance, in languages like PHP, a number of poorly set default configurations may allow the user to override variables.
Exploit-Db
description | ownCloud 4.0.x, 4.5.x (upload.php filename param) - Remote Code Execution. CVE-2014-2044. Webapps exploits for multiple platform |
file | exploits/multiple/webapps/32162.txt |
id | EDB-ID:32162 |
last seen | 2016-02-03 |
modified | 2014-03-10 |
platform | multiple |
port | 80 |
published | 2014-03-10 |
reporter | Portcullis |
source | https://www.exploit-db.com/download/32162/ |
title | ownCloud 4.0.x, 4.5.x upload.php filename param - Remote Code Execution |
type | webapps |
Packetstorm
data source | https://packetstormsecurity.com/files/download/125585/owncloud-exec.txt |
id | PACKETSTORM:125585 |
last seen | 2016-12-05 |
published | 2014-03-06 |
reporter | Alejo Murillo Moya |
source | https://packetstormsecurity.com/files/125585/ownCloud-4.0.x-4.5.x-Remote-Code-Execution.html |
title | ownCloud 4.0.x / 4.5.x Remote Code Execution |
Seebug
bulletinFamily exploit description No description provided by source. id SSV:85462 last seen 2017-11-19 modified 2014-07-01 published 2014-07-01 reporter Root source https://www.seebug.org/vuldb/ssvid-85462 title ownCloud 4.0.x, 4.5.x (upload.php, filename param) - Remote Code Execution bulletinFamily exploit description Bugtraq ID:66000 CVE ID:CVE-2014-2044 ownCloud是一款开源的私有云服务器。 ownCloud不正确过滤用户提交的'filename'参数数据,允许远程攻击者利用漏洞提交恶意POST请求执行任意代码。受影响脚本为: /owncloud/owncloud/?app=files&getfile=ajax%2Fupload.php [POST 'filename' parameter] 0 ownCloud 4.0.x ownCloud 4.5.x 厂商补丁: ownCloud ----- ownCloud 5.0已经修复该漏洞,建议用户下载更新: http://owncloud.org/ id SSV:61727 last seen 2017-11-19 modified 2014-03-11 published 2014-03-11 reporter Root source https://www.seebug.org/vuldb/ssvid-61727 title ownCloud 'filename'参数远程代码执行漏洞
References
- http://packetstormsecurity.com/files/125585/ownCloud-4.0.x-4.5.x-Remote-Code-Execution.html
- http://seclists.org/fulldisclosure/2014/Mar/45
- http://secunia.com/advisories/57267
- http://www.exploit-db.com/exploits/32162
- http://www.osvdb.org/104082
- http://www.securityfocus.com/archive/1/531365/100/0/threaded
- http://www.securityfocus.com/bid/66000
- https://exchange.xforce.ibmcloud.com/vulnerabilities/91757
- https://www.portcullis-security.com/security-research-and-downloads/security-advisories/cve-2014-2044/