GitHub Advisoryadvisory · RubyGems

GHSA-4hpq-rjcx-7vj9 Clearance Gem Open Redirect Vulnerability

HIGH Published 2021-09-13 Modified 2023-08-25 Official page ↗
Aliases
CVE-2021-23435
Ecosystem
RubyGems
Packages
clearance
Severity
High
CVSS vector
CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:L/I:L/A:H
Weaknesses
CWE-601
Reviewed
2021-09-13

Affected packages

• RubyGems clearance: < 2.5.0 → fixed in 2.5.0

Description

This affects the package clearance before 2.5.0. The vulnerability can be possible when users are able to set the value of `session[:return_to]`. If the value used for return_to contains multiple leading slashes (`/////example.com`) the user ends up being redirected to the external domain that comes after the slashes (`http://example.com`).

Related

Alias · CVE (1)

  • CVE-2021-23435 This affects the package clearance before 2.5.0. vulnerability

Weakness · CWE (1)

  • CWE-601 URL Redirection to Untrusted Site weakness

References