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Date: Mon, 5 Feb 2018 14:09:15 +0100
From: Daniel Beck <ml@...kweb.net>
To: oss-security@...ts.openwall.com
Subject: Re: Multiple vulnerabilities in Jenkins plugins
> On 5. Feb 2018, at 13:17, Daniel Beck <ml@...kweb.net> wrote:
>
> SECURITY-521
> JUnit plugin is affected by an XML External Entity (XXE) processing
> vulnerability. This allows an attacker to configure build processes such
> that JUnit plugin parses a maliciously crafted file that uses external
> entities for extraction of secrets from the Jenkins master, server-side
> request forgery, or denial-of-service attacks.
CVE-2018-1000056
> SECURITY-659 (CCM)
CVE-2018-1000054
> SECURITY-660 (Android Lint)
CVE-2018-1000055
> SECURITY-698
> Credentials Binding plugin allows specifying passwords and other secrets as
> environment variables, and will hide them from console output in builds.
>
> However, since Jenkins will try to resolve references to other environment
> variables in environment variables passed to a build, this can result in
> other values than the one specified being provided to a build. For
> example, the value p4$$w0rd would result in Jenkins passing on p4$w0rd, as
> $$ is the escape sequence for a single $.
>
> Credentials Binding plugin does not prevent such a transformed value (e.g.
> p4$w0rd) from being shown on the build log, allowing users to reconstruct
> the actual password value from the transformed one.
>
> Credentials Binding plugin will now escape any $ characters in password
> values so they are correctly passed to the build.
CVE-2018-1000057
> SECURITY-699
> Arbitrary code execution due to incomplete sandbox protection in Pipeline:
> Supporting APIs Plugin: Methods related to Java deserialization like
> readResolve implemented in Pipeline scripts were not subject to sandbox
> protection, and could therefore execute arbitrary code. This could be
> exploited e.g. by regular Jenkins users with the permission to configure
> Pipelines in Jenkins, or by trusted committers to repositories containing
> Jenkinsfiles.
>
> Deserialization of objects in Pipeline is now also subject to sandbox
> protection.
CVE-2018-1000058
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