Information disclosure in Ruby on Rails - CVE-2021-22885

Vulnerability identifier: #VU53001

CSH Severity: Medium

CVSS v4: 8.7 [CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:H/VI:N/VA:N/SC:N/SI:N/SA:N]

CVE-ID: CVE-2021-22885

CWE-ID: CWE-200

Exploitation vector: Remote access

Exploit availability: No public exploit available

The vulnerability allows a remote attacker to gain access to potentially sensitive information.

The vulnerability exists due to improper input validation in the Action Pack within the "redirect_to" or "polymorphic_url" helper. A remote attacker can gain unauthorized access to sensitive information on the system.

Ruby on Rails
IBM Cloud Pak for Multicloud Management
SUSE Webyast
SUSE OpenStack Cloud
SUSE OpenStack Cloud Crowbar
SUSE Linux Enterprise High Availability
openEuler
rails (Debian package)
rubygem-actionpack-3_2
ruby2.1-rubygem-actionpack-4_2
ruby2.5-rubygem-actionpack-5_1
rubygem-actionpack
rubygem-actionpack-doc

Install updates from vendor's website.

Ruby on Rails - addressed in versions 5.2.4.6, 5.2.6, 6.0.3.7, 6.1.3.2
rails (Debian package) - update to 2:5.2.2.1+dfsg-1+deb10u3
rubygem-actionpack-3_2 - update to 3.2.12-0.27.3.1
ruby2.1-rubygem-actionpack-4_2 - update to 4.2.9-7.12.1
ruby2.5-rubygem-actionpack-5_1 - update to 5.1.4-3.9.1
rubygem-actionpack - update to 5.2.4.4-2
rubygem-actionpack-doc - update to 5.2.4.4-2

• https://seclists.org/oss-sec/2021/q2/101

• Multiple vulnerabilities in Ruby on Rails
• Debian update for rails
• SUSE update for rubygem-actionpack-4_2
• SUSE update for rubygem-actionpack-5_1
• Information disclosure in IBM Cloud Pak for Multicloud Management
• SUSE update for rubygem-actionpack-3_2
• openEuler 20.03 LTS SP1 update for rubygem-actionpack