updated matcher

http/cnvd/2023/CNVD-C-2023-76801.yaml

@@ -4,10 +4,12 @@ info:
   name: UFIDA NC uapjs - Remote Code Execution
   author: SleepingBag945,s4e-io
   severity: critical
-  description: There is an arbitrary method calling vulnerability in UFIDA NC and NCC systems. By exploiting the vulnerability through uapjs (jsinvoke), dangerous methods can be called to cause attacks.
+  description: |
+    There is an arbitrary method calling vulnerability in UFIDA NC and NCC systems. By exploiting the vulnerability through uapjs (jsinvoke), dangerous methods can be called to cause attacks.
   reference:
     - https://mp.weixin.qq.com/s/8ZRrmUCD2bfznd1MyDDU8A
   metadata:
+    verified: true
     max-request: 2
     fofa-query: app="用友-NC-Cloud"
   tags: cnvd,cnvd2023,yonyou,rce,intrusive
@@ -29,6 +31,7 @@ http:
     matchers:
       - type: dsl
         dsl:
+          - "len(body)==0"
           - 'status_code == 200'
         internal: true