In a few clicks we can analyze your entire application and see what components are vulnerable in your application, and suggest you quick fixes.
Test your applicationsLearn about XML External Entity (XXE) Injection vulnerabilities in an interactive lesson.
Start learningUpgrade org.jenkins-ci.plugins:rapiddeploy-jenkins
to version 4.2.1 or higher.
org.jenkins-ci.plugins:rapiddeploy-jenkins is a plugin that provides the best way of using all the functionality and benefits of RapidDeploy from a Jenkins job or pipeline.
Affected versions of this package are vulnerable to XML External Entity (XXE) Injection. The XML parser used within the plugin does not prevent XML external entity (XXE) attacks. This allows a user able to control the input files for the 'RapidDeploy deployment package build' build or post-build step to have Jenkins parse a crafted file that uses external entities for extraction of secrets from the Jenkins master, server-side request forgery, or denial-of-service attacks.
XXE Injection is a type of attack against an application that parses XML input. XML is a markup language that defines a set of rules for encoding documents in a format that is both human-readable and machine-readable. By default, many XML processors allow specification of an external entity, a URI that is dereferenced and evaluated during XML processing. When an XML document is being parsed, the parser can make a request and include the content at the specified URI inside of the XML document.
Attacks can include disclosing local files, which may contain sensitive data such as passwords or private user data, using file: schemes or relative paths in the system identifier.
For example, below is a sample XML document, containing an XML element- username.
<xml>
<?xml version="1.0" encoding="ISO-8859-1"?>
<username>John</username>
</xml>
An external XML entity - xxe
, is defined using a system identifier and present within a DOCTYPE header. These entities can access local or remote content. For example the below code contains an external XML entity that would fetch the content of /etc/passwd
and display it to the user rendered by username
.
<xml>
<?xml version="1.0" encoding="ISO-8859-1"?>
<!DOCTYPE foo [
<!ENTITY xxe SYSTEM "file:///etc/passwd" >]>
<username>&xxe;</username>
</xml>
Other XXE Injection attacks can access local resources that may not stop returning data, possibly impacting application availability and leading to Denial of Service.