Vulnerability Details : CVE-2011-4211
Potential exploit
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.
Products affected by CVE-2011-4211
- cpe:2.3:a:google:app_engine_python_sdk:*:*:*:*:*:*:*:*
- cpe:2.3:a:google:app_engine_python_sdk:1.1.4:*:*:*:*:*:*:*
- cpe:2.3:a:google:app_engine_python_sdk:1.1.5:*:*:*:*:*:*:*
- cpe:2.3:a:google:app_engine_python_sdk:1.2.2:*:*:*:*:*:*:*
- cpe:2.3:a:google:app_engine_python_sdk:1.1.2:*:*:*:*:*:*:*
- cpe:2.3:a:google:app_engine_python_sdk:1.1.3:*:*:*:*:*:*:*
- cpe:2.3:a:google:app_engine_python_sdk:1.2.0:*:*:*:*:*:*:*
- cpe:2.3:a:google:app_engine_python_sdk:1.2.3:*:*:*:*:*:*:*
- cpe:2.3:a:google:app_engine_python_sdk:1.2.1:*:*:*:*:*:*:*
- cpe:2.3:a:google:app_engine_python_sdk:1.3.1:*:*:*:*:*:*:*
- cpe:2.3:a:google:app_engine_python_sdk:1.3.2:*:*:*:*:*:*:*
- cpe:2.3:a:google:app_engine_python_sdk:1.4.0:*:*:*:*:*:*:*
- cpe:2.3:a:google:app_engine_python_sdk:1.4.1:*:*:*:*:*:*:*
- cpe:2.3:a:google:app_engine_python_sdk:1.1.0:*:*:*:*:*:*:*
- cpe:2.3:a:google:app_engine_python_sdk:1.1.1:*:*:*:*:*:*:*
- cpe:2.3:a:google:app_engine_python_sdk:1.1.8:*:*:*:*:*:*:*
- cpe:2.3:a:google:app_engine_python_sdk:1.1.9:*:*:*:*:*:*:*
- cpe:2.3:a:google:app_engine_python_sdk:1.2.7:*:*:*:*:*:*:*
- cpe:2.3:a:google:app_engine_python_sdk:1.3.0:*:*:*:*:*:*:*
- cpe:2.3:a:google:app_engine_python_sdk:1.3.7:*:*:*:*:*:*:*
- cpe:2.3:a:google:app_engine_python_sdk:1.3.8:*:*:*:*:*:*:*
- cpe:2.3:a:google:app_engine_python_sdk:1.5.2:*:*:*:*:*:*:*
- cpe:2.3:a:google:app_engine_python_sdk:1.2.4:*:*:*:*:*:*:*
- cpe:2.3:a:google:app_engine_python_sdk:1.3.3:*:*:*:*:*:*:*
- cpe:2.3:a:google:app_engine_python_sdk:1.3.4:*:*:*:*:*:*:*
- cpe:2.3:a:google:app_engine_python_sdk:1.4.2:*:*:*:*:*:*:*
- cpe:2.3:a:google:app_engine_python_sdk:1.4.3:*:*:*:*:*:*:*
- cpe:2.3:a:google:app_engine_python_sdk:1.0.1:*:*:*:*:*:*:*
- cpe:2.3:a:google:app_engine_python_sdk:1.0.2:*:*:*:*:*:*:*
- cpe:2.3:a:google:app_engine_python_sdk:1.1.6:*:*:*:*:*:*:*
- cpe:2.3:a:google:app_engine_python_sdk:1.1.7:*:*:*:*:*:*:*
- cpe:2.3:a:google:app_engine_python_sdk:1.2.5:*:*:*:*:*:*:*
- cpe:2.3:a:google:app_engine_python_sdk:1.2.6:*:*:*:*:*:*:*
- cpe:2.3:a:google:app_engine_python_sdk:1.3.5:*:*:*:*:*:*:*
- cpe:2.3:a:google:app_engine_python_sdk:1.3.6:*:*:*:*:*:*:*
- cpe:2.3:a:google:app_engine_python_sdk:1.5.0:*:*:*:*:*:*:*
- cpe:2.3:a:google:app_engine_python_sdk:1.5.1:*:*:*:*:*:*:*
Exploit prediction scoring system (EPSS) score for CVE-2011-4211
0.04%
Probability of exploitation activity in the next 30 days
EPSS Score History
~ 6 %
Percentile, the proportion of vulnerabilities that are scored at or less
CVSS scores for CVE-2011-4211
Base Score | Base Severity | CVSS Vector | Exploitability Score | Impact Score | Score Source | First Seen |
---|---|---|---|---|---|---|
7.2
|
HIGH | AV:L/AC:L/Au:N/C:C/I:C/A:C |
3.9
|
10.0
|
NIST |
CWE ids for CVE-2011-4211
-
Assigned by: nvd@nist.gov (Primary)
References for CVE-2011-4211
-
http://www.securityfocus.com/bid/50464
Google App Engine Python SDK 'FakeFile' Object Local Security Bypass Vulnerability
-
http://blog.watchfire.com/files/googleappenginesdk.pdf
Exploit
-
https://exchange.xforce.ibmcloud.com/vulnerabilities/71064
Google App Engine Python SDK FakeFile privilege escalation CVE-2011-4211 Vulnerability Report
-
http://code.google.com/p/googleappengine/wiki/SdkReleaseNotes
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