Arbitrary File Write Affecting passenger package, versions <5.3.2
Snyk CVSS
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Test your applications- Snyk ID SNYK-RUBY-PASSENGER-22033
- published 20 Jun 2018
- disclosed 12 Jun 2018
- credit Unknown
Introduced: 12 Jun 2018
CVE-2018-12026 Open this link in a new tabHow to fix?
Upgrade passenger to version 5.3.2 or higher.
Overview
passenger is a modern web server and application server for Ruby, Python and Node.js, optimized for performance, low memory usage and ease of use.
Affected versions of this package are vulnerable to Arbitrary File Write. During the spawning of a malicious Passenger-managed application, SpawningKit allows such applications to replace key files or directories in the spawning communication directory with symlinks. This then could result in arbitrary reads and writes, which in turn can result in information disclosure and privilege escalation.