Shibboleth SSO Open Redirect Scanner
This scanner detects the use of Shibboleth SSO Open Redirect in digital assets. Shibboleth SSO susceptibilities might allow unauthorized redirection of users to potentially malicious sites. It is essential to maintain secure configurations to safeguard sensitive data and operations.
Short Info
Level
Single Scan
Single Scan
Can be used by
Asset Owner
Estimated Time
10 seconds
Time Interval
12 days 3 hours
Scan only one
URL
Toolbox
Shibboleth SSO, widely used in identity management and federated identity solutions, is critical for managing secure user authentication across services. It is employed in academic institutions, corporations, and government organizations to streamline access to digital resources. Shibboleth SSO simplifies user sign-on processes by allowing users to authenticate once and gain access to multiple applications easily. This system supports various authentication protocols and promotes enhanced user experience by integrating seamlessly into existing systems. It is a vital component in environments requiring robust security measures and user management capabilities. The extensive support for standards makes Shibboleth SSO a flexible and scalable solution for diverse authentication needs.
An Open Redirect vulnerability in Shibboleth SSO could potentially allow attackers to redirect users to malicious websites. Attackers exploiting this weakness might capture sensitive information by redirecting users from trusted sites unknowingly. The vulnerability occurs when the web application or server improperly validates URLs that users are redirected to. It can be leveraged for phishing attacks or to execute unauthorized operations under the guise of legitimate processes. In some cases, it may lead to unauthorized modification of data or governance issues due to unintended user actions. Ensuring proper validation and security configurations in redirect targets is critical to mitigate such vulnerabilities effectively.
The vulnerability resides in the URL redirection process within the Shibboleth SSO's endpoint. Attackers can manipulate the 'return' parameter in the logout URL to redirect users to an arbitrary domain. Technical details reveal that certain server configurations might fail to validate source URLs effectively, allowing crafted URLs to bypass verification. By exploiting this flaw, attackers trick users into following links that appear legitimate but lead to attacker-controlled sites. The vulnerability is identified by observing redirects to unintended domains indicated by the 'Location' header and HTTP status codes. Proper assessment and understanding of the system's URL validation process are essential for addressing this vulnerability.
The exploitation of this vulnerability can have significant business consequences. Users might inadvertently provide sensitive information to a bad actor if redirected to a phishing site. Such unauthorized redirection could result in financial losses, damage to brand reputation, and legal ramifications. Organizations might face data integrity issues if unauthorized operations are executed due to this vulnerability. Client trust may be diminished if security weaknesses become public, affecting social perception and market positioning. Overall, the consequences emphasize the importance of implementing thorough validation and security strategies in web systems to protect against such vulnerabilities.
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