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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