ADVISORIES

• CVE-2018-16476 (NVD)
• GHSA-q2qw-rmrh-vv42
• Vendor Advisory

GEM

activejob

FRAMEWORK

Ruby on Rails

SEVERITY

CVSS v3.x: 7.5 (High)

UNAFFECTED VERSIONS

• < 4.2.0

PATCHED VERSIONS

• ~> 4.2.11
• ~> 5.0.7.1
• ~> 5.1.6.1
• ~> 5.1.7
• >= 5.2.1.1

DESCRIPTION

There is a vulnerability in Active Job. This vulnerability has been assigned the CVE identifier CVE-2018-16476.

Versions Affected: >= 4.2.0 Not affected: < 4.2.0 Fixed Versions: 4.2.11, 5.0.7.1, 5.1.6.1, 5.2.1.1

Impact

Carefully crafted user input can cause Active Job to deserialize it using GlobalId and allow an attacker to have access to information that they should not have.

Vulnerable code will look something like this:

MyJob.perform_later(user_input)

All users running an affected release should either upgrade or use one of the workarounds immediately.