Selenium Exposure Scanner
This scanner detects the Exposure in Selenium. Exposure arises when a Selenium node is accessible without authentication, potentially leading to remote command execution.
Short Info
Level
High
Single Scan
Single Scan
Can be used by
Asset Owner
Estimated Time
10 seconds
Time Interval
15 days 9 hours
Scan only one
URL
Toolbox
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Selenium is a widely used open-source tool for automating web applications for testing purposes. It is used by developers and testers to simulate real user interactions in web browsers, allowing for regression testing and ensuring web applications function as intended. Organizations ranging from small development teams to large enterprises utilize Selenium to increase testing efficiency and accuracy. By integrating with frameworks like TestNG or JUnit, Selenium allows for streamlined and automated test executions. The software is capable of supporting multiple browsers, making it versatile and adaptable in different environments. Its ability to operate in distributed environments, utilizing Selenium Grid, enables large-scale parallel testing of web applications.
The vulnerability detected by the scanner involves the potential exposure of Selenium nodes to unauthorized access. This occurs when secure authentication measures are not implemented, leaving nodes accessible to anyone connecting to the endpoint. Such exposure could allow an attacker to remotely execute commands if chromium is configured, potentially compromising the integrity and security of systems using Selenium for automated testing. The default configuration often includes ports like 4444, which should be scrutinized to ensure they are not publicly accessible. Improper configuration or insufficient access controls can lead to significant security risks, making it vital to ensure proper setup of Selenium nodes. Awareness and caution in configuration management are necessary to mitigate the risk of this vulnerability.
Technical details of this vulnerability focus on the exposure created by accessible Selenium nodes, particularly at endpoints like /wd/hub. This vulnerability occurs when nodes are deployed without protective authentication measures, potentially allowing unauthorized access. The default port used, 4444, may be a common target if not secured properly. If a reverse proxy is improperly configured, it may exacerbate the vulnerability by inadvertently exposing nodes. It is essential to correctly configure access to these endpoints, ensuring that only authorized users can interact with Selenium nodes. Failure to secure this access can provide an avenue for unauthorized remote command execution.
When exploited, this vulnerability can lead to severe consequences, including unauthorized remote command execution on exposed Selenium nodes. Attackers could leverage this access to manipulate testing environments or deploy malicious software. If an attacker gains control over the Selenium node, they might execute arbitrary code, access sensitive data, or disrupt automated testing processes. Such actions can result in data breaches, service downtime, or even further infiltration into the network. The impact on businesses can be significant, affecting not just software development but potentially leading to broader organizational security issues. Therefore, securing access to Selenium nodes is crucial to preventing potential exploitation.
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