Cross-Site Scripting (XSS) Vulnerability in phpLDAPadmin
Summary
CVE-2012-0834: Cross-site scripting (XSS) vulnerability in lib/QueryRender.php in phpLDAPadmin 1.2.2 and earlier allows remote attackers to inject arbitrary web script or HTML via the base parameter in a query_engine action to cmd.php. Affects phpldapadmin versions < 1.2.2-1. Fixed in 1.2.2-1. How to fix ↓
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Background
phpLDAPadmin is a web-based LDAP client that allows users to manage LDAP servers. It provides a graphical interface for performing various LDAP operations. The vulnerability in phpLDAPadmin version 1.2.2 and earlier allows remote attackers to inject arbitrary web script or HTML through the base parameter in a query_engine action to cmd.php.
Vulnerability Detail
The vulnerability, identified as CVE-2012-0834, is a cross-site scripting (XSS) vulnerability. It occurs when user-supplied input is not properly sanitized and is included in web pages without proper validation. In this case, the base parameter in the query_engine action of cmd.php is vulnerable to XSS attacks. An attacker can exploit this vulnerability by injecting malicious script or HTML code, which will be executed in the context of the victim's browser. This can lead to various consequences, including session hijacking, defacement of web pages, and stealing sensitive information.
How To Fix
Minimum fixed version
1.2.2-1
This is the first release that contains the fix.
sudo apt-get install --only-upgrade phpldapadminTip — Not sure which version your app runs? Vulert can match this fix to it. Scan free →
Workaround
If upgrading to the latest version is not immediately feasible, a temporary workaround is to disable the affected functionality or implement input validation and sanitization measures to prevent the injection of malicious code. Here is an example of input validation using PHP's filter_var function:
$base = filter_var($_GET['base'], FILTER_SANITIZE_STRING);
Conclusion
The cross-site scripting (XSS) vulnerability in phpLDAPadmin version 1.2.2 and earlier allows remote attackers to inject arbitrary web script or HTML. It is crucial to upgrade to the latest version or implement appropriate input validation and sanitization measures to mitigate the risk of exploitation. For further support on vulnerability remediation, please contact DevNack.com.
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FAQ
phpLDAPadmin is a web-based LDAP client that allows users to manage LDAP servers. It provides a graphical interface for performing various LDAP operations.
Cross-site scripting (XSS) is a type of security vulnerability that allows attackers to inject malicious scripts or HTML code into web pages viewed by other users. This can lead to various consequences, including session hijacking, defacement of web pages, and stealing sensitive information.
An attacker can exploit this vulnerability by injecting malicious script or HTML code through the base parameter in the query_engine action of cmd.php. This injected code will be executed in the context of the victim's browser, allowing the attacker to perform various malicious actions.
The potential consequences of this vulnerability include session hijacking, defacement of web pages, and stealing sensitive information. An attacker can use the injected code to manipulate the victim's session, modify the content of web pages, or steal credentials and other sensitive data.
To fix this vulnerability, it is recommended to upgrade to phpLDAPadmin version 1.2.2-1 or later. This version includes proper sanitization and validation of user input, preventing the execution of malicious scripts or HTML code.
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