Arbitrary File Write Affecting passenger package, versions <5.3.2


Severity

Recommended
0.0
critical
0
10

CVSS assessment made by Snyk's Security Team. Learn more

Threat Intelligence

EPSS
0.33% (71st percentile)

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  • Snyk IDSNYK-RUBY-PASSENGER-22033
  • published20 Jun 2018
  • disclosed12 Jun 2018
  • creditUnknown

Introduced: 12 Jun 2018

CVE-2018-12026  (opens in a new tab)
CWE-626  (opens in a new tab)

How 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.

References

CVSS Scores

version 3.1