Vulnerabilities > CVE-2009-4137 - Improper Input Validation vulnerability in Matomo
Attack vector
NETWORK Attack complexity
LOW Privileges required
NONE Confidentiality impact
PARTIAL Integrity impact
PARTIAL Availability impact
PARTIAL Summary
The loadContentFromCookie function in core/Cookie.php in Piwik before 0.5 does not validate strings obtained from cookies before calling the unserialize function, which allows remote attackers to execute arbitrary code or upload arbitrary files via vectors related to the __destruct function in the Piwik_Config class; php://filter URIs; the __destruct functions in Zend Framework, as demonstrated by the Zend_Log destructor; the shutdown functions in Zend Framework, as demonstrated by the Zend_Log_Writer_Mail class; the render function in the Piwik_View class; Smarty templates; and the _eval function in Smarty.
Vulnerable Configurations
| Part | Description | Count |
|---|---|---|
| Application | 8 |
Common Weakness Enumeration (CWE)
Common Attack Pattern Enumeration and Classification (CAPEC)
- Buffer Overflow via Environment Variables This attack pattern involves causing a buffer overflow through manipulation of environment variables. Once the attacker finds that they can modify an environment variable, they may try to overflow associated buffers. This attack leverages implicit trust often placed in environment variables.
- Server Side Include (SSI) Injection An attacker can use Server Side Include (SSI) Injection to send code to a web application that then gets executed by the web server. Doing so enables the attacker to achieve similar results to Cross Site Scripting, viz., arbitrary code execution and information disclosure, albeit on a more limited scale, since the SSI directives are nowhere near as powerful as a full-fledged scripting language. Nonetheless, the attacker can conveniently gain access to sensitive files, such as password files, and execute shell commands.
- Cross Zone Scripting An attacker is able to cause a victim to load content into their web-browser that bypasses security zone controls and gain access to increased privileges to execute scripting code or other web objects such as unsigned ActiveX controls or applets. This is a privilege elevation attack targeted at zone-based web-browser security. In a zone-based model, pages belong to one of a set of zones corresponding to the level of privilege assigned to that page. Pages in an untrusted zone would have a lesser level of access to the system and/or be restricted in the types of executable content it was allowed to invoke. In a cross-zone scripting attack, a page that should be assigned to a less privileged zone is granted the privileges of a more trusted zone. This can be accomplished by exploiting bugs in the browser, exploiting incorrect configuration in the zone controls, through a cross-site scripting attack that causes the attackers' content to be treated as coming from a more trusted page, or by leveraging some piece of system functionality that is accessible from both the trusted and less trusted zone. This attack differs from "Restful Privilege Escalation" in that the latter correlates to the inadequate securing of RESTful access methods (such as HTTP DELETE) on the server, while cross-zone scripting attacks the concept of security zones as implemented by a browser.
- Cross Site Scripting through Log Files An attacker may leverage a system weakness where logs are susceptible to log injection to insert scripts into the system's logs. If these logs are later viewed by an administrator through a thin administrative interface and the log data is not properly HTML encoded before being written to the page, the attackers' scripts stored in the log will be executed in the administrative interface with potentially serious consequences. This attack pattern is really a combination of two other attack patterns: log injection and stored cross site scripting.
- Command Line Execution through SQL Injection An attacker uses standard SQL injection methods to inject data into the command line for execution. This could be done directly through misuse of directives such as MSSQL_xp_cmdshell or indirectly through injection of data into the database that would be interpreted as shell commands. Sometime later, an unscrupulous backend application (or could be part of the functionality of the same application) fetches the injected data stored in the database and uses this data as command line arguments without performing proper validation. The malicious data escapes that data plane by spawning new commands to be executed on the host.
Nessus
| NASL family | FreeBSD Local Security Checks |
| NASL id | FREEBSD_PKG_FCBF56DDE66711DE920A00248C9B4BE7.NASL |
| description | secunia reports : Stefan Esser has reported a vulnerability in Piwik, which can be exploited by malicious people to compromise a vulnerable system. The vulnerability is caused due to the core/Cookie.php script using |
| last seen | 2020-06-01 |
| modified | 2020-06-02 |
| plugin id | 43128 |
| published | 2009-12-14 |
| reporter | This script is Copyright (C) 2009-2019 and is owned by Tenable, Inc. or an Affiliate thereof. |
| source | https://www.tenable.com/plugins/nessus/43128 |
| title | FreeBSD : piwik -- php code execution (fcbf56dd-e667-11de-920a-00248c9b4be7) |
| code | |
Seebug
| bulletinFamily | exploit |
| description | Bugraq ID: 37312 CVE ID：CVE-2009-4137 Piwik是一款开源的WEB统计系统。 Piwik unserializes()用户输入允许攻击者发送特殊构建的cookie，可导致以应用程序权限执行任意PHP代码。 Piwik从cookie中获得数据进行unserialize()操作，通过反序列化部分Piwik的对象，可覆盖WEB服务上可写目录下的任意文件，攻击者借此可用于上传任意PHP文件并以WEB权限执行。 Piwik 0.2.32 Piwik 0.4 Piwik 0.3 Piwik 0.5已经修复此漏洞，建议用户下载使用： http://piwik.org/blog/2009/12/piwik-response-to-shocking-news-in-php-exploitation/ |
| id | SSV:15094 |
| last seen | 2017-11-19 |
| modified | 2009-12-17 |
| published | 2009-12-17 |
| reporter | Root |
| title | Piwik 'unserialize()' PHP代码执行漏洞 |
References
- http://dev.piwik.org/trac/changeset/1637
- http://piwik.org/blog/2009/12/piwik-response-to-shocking-news-in-php-exploitation/
- http://www.openwall.com/lists/oss-security/2009/12/09/2
- http://www.openwall.com/lists/oss-security/2009/12/10/1
- http://www.openwall.com/lists/oss-security/2009/12/14/2
- http://www.sektioneins.de/en/advisories/advisory-032009-piwik-cookie-unserialize-vulnerability/
- http://www.suspekt.org/2009/12/09/advisory-032009-piwik-cookie-unserialize-vulnerability/
- http://www.suspekt.org/downloads/POC2009-ShockingNewsInPHPExploitation.pdf