== Why is this an issue? include::../description.adoc[] === Noncompliant code example [source,python] ---- import tempfile filename = tempfile.mktemp() # Noncompliant tmp_file = open(filename, "w+") ---- === Compliant solution [source,python] ---- import tempfile tmp_file1 = tempfile.NamedTemporaryFile(delete=False) # Compliant; Easy replacement to tempfile.mktemp() tmp_file2 = tempfile.NamedTemporaryFile() # Compliant; Created file will be automatically deleted ---- == Resources * https://owasp.org/Top10/A01_2021-Broken_Access_Control/[OWASP Top 10 2021 Category A1] - Broken Access Control * https://owasp.org/www-project-top-ten/2017/A9_2017-Using_Components_with_Known_Vulnerabilities[OWASP Top 10 2017 Category A9] - Using Components with Known Vulnerabilities * https://cwe.mitre.org/data/definitions/377[MITRE, CWE-377] - Insecure Temporary File * https://cwe.mitre.org/data/definitions/379[MITRE, CWE-379] - Creation of Temporary File in Directory with Incorrect Permissions * https://owasp.org/www-community/vulnerabilities/Insecure_Temporary_File[OWASP, Insecure Temporary File] * https://docs.python.org/3/library/tempfile.html#deprecated-functions-and-variables[Python tempfile module] * https://docs.python.org/2.7/library/os.html[Python 2.7 os module] ifdef::env-github,rspecator-view[] ''' == Implementation Specification (visible only on this page) include::message.adoc[] ''' == Comments And Links (visible only on this page) include::../comments-and-links.adoc[] endif::env-github,rspecator-view[]