SB2020112330 - Remote code execution in Python
Published: November 23, 2020 Updated: February 11, 2021
Security Bulletin ID
SB2020112330
Severity
Medium
Patch available
YES
Number of vulnerabilities
1
Exploitation vector
Adjecent network
Highest impact
Code execution
Breakdown by Severity
- Low
- Medium
- High
- Critical
Description
This security bulletin contains information about 1 security vulnerability.
1) Code Injection (CVE-ID: CVE-2020-27619)
The vulnerability allows a remote attacker to execute arbitrary code on the target system.
The vulnerability exists due to Python executed eval() function on the code, retrieved via HTTP protocol in Lib/test/multibytecodec_support.py CJK codec tests. A remote attacker with ability to intercept network traffic can perform a Man-in-the-Middle (MitM) attack and execute arbitrary Python code on the system.
Remediation
Install update from vendor's website.
References
- https://bugs.python.org/issue41944
- https://github.com/python/cpython/commit/2ef5caa58febc8968e670e39e3d37cf8eef3cab8
- https://github.com/python/cpython/commit/43e523103886af66d6c27cd72431b5d9d14cd2a9
- https://github.com/python/cpython/commit/6c6c256df3636ff6f6136820afaefa5a10a3ac33
- https://github.com/python/cpython/commit/b664a1df4ee71d3760ab937653b10997081b1794
- https://github.com/python/cpython/commit/e912e945f2960029d039d3390ea08835ad39374b
- https://security.netapp.com/advisory/ntap-20201123-0004/