CVE-2020-13091

pandas through 1.0.3 can unserialize and execute commands from an untrusted file that is passed to the read_pickle() function, if reduce makes an os.system call. NOTE: third parties dispute this issue because the read_pickle() function is documented as unsafe and it is the users responsibility to use the function in a secure manner

Weakness

The product deserializes untrusted data without sufficiently ensuring that the resulting data will be valid.

Affected Software

Potential Mitigations

• Make fields transient to protect them from deserialization.
• An attempt to serialize and then deserialize a class containing transient fields will result in NULLs where the transient data should be. This is an excellent way to prevent time, environment-based, or sensitive variables from being carried over and used improperly.

Related Attack Patterns

• https://cwe.mitre.org/data/definitions/586.html

References

• https://github.com/0FuzzingQ/vuln/blob/master/pandas%20unserialize.md
• https://pandas.pydata.org/pandas-docs/stable/reference/api/pandas.read_pickle.html
• https://github.com/0FuzzingQ/vuln/blob/master/pandas%20unserialize.md
• https://pandas.pydata.org/pandas-docs/stable/reference/api/pandas.read_pickle.html