Products.PluggableAuthService 2.6.0 - Open Redirect

2021-06-0200:00:00

Piyush Patil

www.exploit-db.com

128

6.1 Medium

CVSS3

Attack Vector

NETWORK

Attack Complexity

LOW

Privileges Required

NONE

User Interaction

REQUIRED

Scope

CHANGED

Confidentiality Impact

LOW

Integrity Impact

LOW

Availability Impact

NONE

CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:N

6.5 Medium

AI Score

Confidence

High

5.8 Medium

CVSS2

Access Vector

NETWORK

Access Complexity

MEDIUM

Authentication

NONE

Confidentiality Impact

PARTIAL

Integrity Impact

PARTIAL

Availability Impact

NONE

AV:N/AC:M/Au:N/C:P/I:P/A:N

0.007 Low

EPSS

Percentile

79.4%

JSON

# Exploit Title: Products.PluggableAuthService 2.6.0 - Open Redirect
# Exploit Author: Piyush Patil
# Affected Component: Pluggable Zope authentication/authorization framework
# Component Link: https://pypi.org/project/Products.PluggableAuthService/
# Version: < 2.6.1
# CVE: CVE-2021-21337
# Reference: https://github.com/zopefoundation/Products.PluggableAuthService/security/advisories/GHSA-p44j-xrqg-4xrr


--------------------------Proof of Concept-----------------------

1- Goto https://localhost/login
2- Turn on intercept and click on the login
3- Change "came_from" parameter value to https://attacker.com
4- User will be redirected to an attacker-controlled website.

Fix: pip install "Products.PluggableAuthService>=2.6.1"