CVE-2016-6639 PHP Buildpack exposes .profile file


Severity

Medium

Vendor

Cloud Foundry Foundation

Versions Affected
  • PHP Buildpack versions prior to v4.3.18
  • Cf-release versions prior to v242
Description

The .profile file, which can potentially include environment variables and credentials, is exposed by default in the PHP Buildpack. The PHP buildpack prior to v4.3.18 did not actually allow for execution of the .profile file, so it is unlikely that many applications were using it.

Affected Pivotal Products and Versions
  • Cloud Foundry PHP buildpack versions prior to 4.3.18
  • New installations of PCF Elastic Runtime versions prior to 1.6.38 and 1.7.x versions prior to 1.7.19
Mitigation

Users of affected versions should apply the following mitigation:

  • For existing deployments, upgrade the PHP Buildpack to v4.3.18 or later [1] and restage all applications that use automated buildpack detection.
    • Immediately rotate credentials for apps using the PHP buildpack if they were stored in the .profile file.
  • For new deployments, install PCF Elastic Runtime 1.6.38 or later or for 1.7.x versions install v1.7.19 or later.
Credit

Cloud Foundry Buildpacks Team

References
History

2016-09-07: Initial vulnerability report published