high
7.2
CWE
264
Advisory Published
Updated

CVE-2011-4211

First published: Sun Oct 30 2011(Updated: )

The FakeFile implementation in the sandbox environment in the Google App Engine Python SDK before 1.5.4 does not properly control the opening of files, which allows local users to bypass intended access restrictions and create arbitrary files via ALLOWED_MODES and ALLOWED_DIRS changes within the code parameter to _ah/admin/interactive/execute, a different vulnerability than CVE-2011-1364.

Credit: cve@mitre.org

Affected SoftwareAffected VersionHow to fix
Google App Engine Python SDK=1.4.3
Google App Engine Python SDK=1.1.5
Google App Engine Python SDK=1.3.4
Google App Engine Python SDK=1.2.6
Google App Engine Python SDK=1.2.2
Google App Engine Python SDK=1.2.7
Google App Engine Python SDK=1.1.7
Google App Engine Python SDK=1.0.2
Google App Engine Python SDK=1.1.3
Google App Engine Python SDK=1.5.2
Google App Engine Python SDK=1.1.0
Google App Engine Python SDK=1.3.1
Google App Engine Python SDK<=1.5.3
Google App Engine Python SDK=1.0.1
Google App Engine Python SDK=1.4.0
Google App Engine Python SDK=1.1.2
Google App Engine Python SDK=1.3.8
Google App Engine Python SDK=1.3.3
Google App Engine Python SDK=1.2.5
Google App Engine Python SDK=1.2.0
Google App Engine Python SDK=1.1.8
Google App Engine Python SDK=1.1.9
Google App Engine Python SDK=1.3.7
Google App Engine Python SDK=1.3.2
Google App Engine Python SDK=1.2.4
Google App Engine Python SDK=1.2.1
Google App Engine Python SDK=1.4.1
Google App Engine Python SDK=1.2.3
Google App Engine Python SDK=1.1.4
Google App Engine Python SDK=1.5.1
Google App Engine Python SDK=1.3.0
Google App Engine Python SDK=1.3.6
Google App Engine Python SDK=1.3.5
Google App Engine Python SDK=1.1.1
Google App Engine Python SDK=1.1.6
Google App Engine Python SDK=1.5.0
Google App Engine Python SDK=1.4.2

Remedy

http://code.google.com/p/googleappengine/wiki/SdkReleaseNotes

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Reference Links

Frequently Asked Questions

  • What is the severity of CVE-2011-4211?

    CVE-2011-4211 is classified as a medium severity vulnerability.

  • How do I fix CVE-2011-4211?

    To fix CVE-2011-4211, upgrade to Google App Engine Python SDK version 1.5.4 or later.

  • What are the affected versions for CVE-2011-4211?

    CVE-2011-4211 affects versions of Google App Engine Python SDK prior to 1.5.4.

  • What type of vulnerability is CVE-2011-4211?

    CVE-2011-4211 is a file access control vulnerability in the Google App Engine Python SDK.

  • Who is impacted by CVE-2011-4211?

    Local users with access to the Google App Engine Python SDK versions mentioned can exploit CVE-2011-4211.

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