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Date: Sat, 23 Feb 2019 11:59:26 +0100
From: Daniel Beck <ml@...kweb.net>
To: oss-security@...ts.openwall.com
Subject: Re: Multiple vulnerabilities in Jenkins plugins



> On 19. Feb 2019, at 19:33, Daniel Beck <ml@...kweb.net> wrote:
> 
> SECURITY-1320
> The previously implemented Script Security Plugin sandbox protections
> prohibiting the use of unsafe AST transforming annotations such as @Grab 
> could be circumvented through use of various Groovy language features:
> 
> * Using Groovy’s AnnotationCollector
> * Import aliasing
> * Referencing annotation types using their full class name
> 
> This allowed users with Overall/Read permission, or the ability to control
> Jenkinsfile or sandboxed Pipeline shared library contents in SCM, to 
> bypass the sandbox protection and execute arbitrary code on the Jenkins 
> master.
> 
> Using AnnotationCollector is now newly prohibited in sandboxed scripts 
> such as Pipelines. Importing any of the annotations considered unsafe will
> now result in an error. During the compilation phase, both simple and 
> full class names of prohibited annotations are rejected for element 
> annotations.

CVE-2019-1003024

> SECURITY-876
> Cloud Foundry Plugin did not perform permission checks on a method 
> implementing form validation. This allowed users with Overall/Read access 
> to Jenkins to connect to an attacker-specified URL using attacker-
> specified credentials IDs obtained through another method, capturing 
> credentials stored in Jenkins.
> 
> Additionally, this form validation method did not require POST requests, 
> resulting in a cross-site request forgery vulnerability.

CVE-2019-1003025

> SECURITY-985
> A missing permission check in a form validation method in Mattermost 
> Notification Plugin allowed users with Overall/Read permission to 
> initiate a connection test, connecting to an attacker-specified 
> Mattermost server and room and posting a message.
> 
> Additionally, this form validation method did not require POST requests, 
> resulting in a CSRF vulnerability.

CVE-2019-1003026

> SECURITY-817
> A missing permission check in a form validation method in OctopusDeploy 
> Plugin allowed users with Overall/Read permission to initiate a 
> connection test, sending an HTTP HEAD request to an attacker-specified 
> URL, returning HTTP response code if successful, or exception error 
> message otherwise.
> 
> Additionally, this form validation method did not require POST requests, 
> resulting in a CSRF vulnerability.

CVE-2019-1003027

> SECURITY-1033
> A missing permission check in a form validation method in JMS Messaging 
> Plugin allowed users with Overall/Read permission to initiate a 
> connection test, sending an HTTP request to an attacker-specified URL.
> 
> Additionally, this form validation method did not require POST requests, 
> resulting in a CSRF vulnerability.

CVE-2019-1003028

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