CVE-2020-11073 : In Autoswitch Python Virtualenv before version 0.16.0, a user who enters a direc

In Autoswitch Python Virtualenv before version 0.16.0, a user who enters a directory with a malicious `.venv` file could run arbitrary code without any user interaction. This is fixed in version: 1.16.0

Published 2020-05-13 19:15:12

Updated 2021-11-04 17:51:43

Source GitHub, Inc.

View at NVD, CVE.org

Vulnerability category: Directory traversal

Products affected by CVE-2020-11073

Autoswitch Python Virtualenv Project » Autoswitch Python Virtualenv
Versions before (<) 1.16.0
cpe:2.3:a:autoswitch_python_virtualenv_project:autoswitch_python_virtualenv:*:*:*:*:*:*:*:*
Matching versions

Exploit prediction scoring system (EPSS) score for CVE-2020-11073

EPSS FAQ

0.26%

Probability of exploitation activity in the next 30 days EPSS Score History

~ 48 %

Percentile, the proportion of vulnerabilities that are scored at or less

CVSS scores for CVE-2020-11073

Base Score	Base Severity	CVSS Vector	Exploitability Score	Impact Score	Score Source
4.6	MEDIUM	AV:L/AC:L/Au:N/C:P/I:P/A:P	3.9	6.4	NIST
Access Vector: Local Access Complexity: Low Authentication: None Confidentiality Impact: Partial Integrity Impact: Partial Availability Impact: Partial
7.8	HIGH	CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H	1.8	5.9	NIST
Attack Vector: Local Attack Complexity: Low Privileges Required: Low User Interaction: None Scope: Unchanged Confidentiality: High Integrity: High Availability: High
7.9	HIGH	CVSS:3.1/AV:L/AC:L/PR:L/UI:R/S:C/C:H/I:H/A:N	1.5	5.8	GitHub, Inc.
Attack Vector: Local Attack Complexity: Low Privileges Required: Low User Interaction: Required Scope: Changed Confidentiality: High Integrity: High Availability: None

CWE ids for CVE-2020-11073

CWE-22 Improper Limitation of a Pathname to a Restricted Directory ('Path Traversal')

The product uses external input to construct a pathname that is intended to identify a file or directory that is located underneath a restricted parent directory, but the product does not properly neutralize special elements within the pathname that can cause the pathname to resolve to a location that is outside of the restricted directory.

Assigned by: nvd@nist.gov (Primary)
CWE-77 Improper Neutralization of Special Elements used in a Command ('Command Injection')

The product constructs all or part of a command using externally-influenced input from an upstream component, but it does not neutralize or incorrectly neutralizes special elements that could modify the intended command when it is sent to a downstream component.

Assigned by: security-advisories@github.com (Secondary)

References for CVE-2020-11073

https://github.com/MichaelAquilina/zsh-autoswitch-virtualenv/commit/30c77db7c83eca2bc5f6134fccbdc117b49a6a05

Merge pull request #123 from MichaelAquilina/fix/insecure_activation · MichaelAquilina/zsh-autoswitch-virtualenv@30c77db · GitHub
Patch;Third Party Advisory
https://github.com/MichaelAquilina/zsh-autoswitch-virtualenv/issues/122

Malicious scripts in untrusted directories are executed · Issue #122 · MichaelAquilina/zsh-autoswitch-virtualenv · GitHub
Exploit;Third Party Advisory
https://github.com/MichaelAquilina/zsh-autoswitch-virtualenv/pull/123

fix: insecure activation of virtualenvs by MichaelAquilina · Pull Request #123 · MichaelAquilina/zsh-autoswitch-virtualenv · GitHub
Third Party Advisory
https://github.com/MichaelAquilina/zsh-autoswitch-virtualenv/security/advisories/GHSA-h8wm-cqq6-957q

Remote Code Execution from malicious `.venv` files · Advisory · MichaelAquilina/zsh-autoswitch-virtualenv · GitHub
Third Party Advisory

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Vulnerability Details : CVE-2020-11073

Products affected by CVE-2020-11073

Exploit prediction scoring system (EPSS) score for CVE-2020-11073

CVSS scores for CVE-2020-11073

CWE ids for CVE-2020-11073

References for CVE-2020-11073