Description
A path traversal vulnerability exists in the Stapler web framework used by Jenkins 2.145 and earlier, LTS 2.138.1 and earlier in core/src/main/java/org/kohsuke/stapler/Facet.java, groovy/src/main/java/org/kohsuke/stapler/jelly/groovy/GroovyFacet.java, jelly/src/main/java/org/kohsuke/stapler/jelly/JellyFacet.java, jruby/src/main/java/org/kohsuke/stapler/jelly/jruby/JRubyFacet.java, jsp/src/main/java/org/kohsuke/stapler/jsp/JSPFacet.java that allows attackers to render routable objects using any view in Jenkins, exposing internal information about those objects not intended to be viewed, such as their toString() representation.
Remediation
References
https://jenkins.io/security/advisory/2018-10-10/#SECURITY-867
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