Vulnerabilities > CVE-2014-8791 - Code Injection vulnerability in Enalean Tuleap 7.6

047910
CVSS 6.0 - MEDIUM
Attack vector
NETWORK
Attack complexity
MEDIUM
Privileges required
SINGLE
Confidentiality impact
PARTIAL
Integrity impact
PARTIAL
Availability impact
PARTIAL
network
enalean
CWE-94
exploit available
metasploit

Summary

project/register.php in Tuleap before 7.7, when sys_create_project_in_one_step is disabled, allows remote authenticated users to conduct PHP object injection attacks and execute arbitrary PHP code via the data parameter.

Vulnerable Configurations

Part Description Count
Application
Enalean
1

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

descriptionTuleap PHP Unserialize Code Execution. CVE-2014-8791. Remote exploit for php platform
idEDB-ID:35545
last seen2016-02-04
modified2014-12-15
published2014-12-15
reportermetasploit
sourcehttps://www.exploit-db.com/download/35545/
titleTuleap PHP Unserialize Code Execution

Metasploit

descriptionThis module exploits a PHP object injection vulnerability in Tuleap <= 7.6-4 which could be abused to allow authenticated users to execute arbitrary code with the permissions of the web server. The dangerous unserialize() call exists in the 'src/www/project/register.php' file. The exploit abuses the destructor method from the Jabbex class in order to reach a call_user_func_array() call in the Jabber class and call the fetchPostActions() method from the Transition_PostAction_FieldFactory class to execute PHP code through an eval() call. In order to work, the target must have the 'sys_create_project_in_one_step' option disabled.
idMSF:EXPLOIT/UNIX/WEBAPP/TULEAP_UNSERIALIZE_EXEC
last seen2020-06-05
modified2017-12-20
published2014-12-09
references
reporterRapid7
sourcehttps://github.com/rapid7/metasploit-framework/blob/master//modules/exploits/unix/webapp/tuleap_unserialize_exec.rb
titleTuleap PHP Unserialize Code Execution

Packetstorm