CVE-2020-15801: In Python 3.8.4, sys.path restrictions specified in a python38._pth file are ignored, allowing code to be loaded from arbitrary locations

Critical severity · published Jul 17, 2020

CVE-2020-15801

In Python 3.8.4, sys.path restrictions specified in a python38._pth file are ignored, allowing code to be loaded from arbitrary locations

9.8

CVSS

3.6%

EPSS

On KEV

Description

In Python 3.8.4, sys.path restrictions specified in a python38._pth file are ignored, allowing code to be loaded from arbitrary locations. The <executable-name>._pth file (e.g., the python._pth file) is not affected.

CVSS vector

CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H

Attack vector

Network

Complexity

Low

Privileges

None

User interaction

None

Confidentiality

High

Integrity

High

Availability

High

Scope

Unchanged

Exploitation

Is it being used?

Exploit prediction (EPSS)3.6% · higher than 89% of CVEs

Exploited in the wildNo evidence yet

CISA KEVNot listed

Ransomware campaign useNot known

Affected products

Which versions

Max Data · Netapp

All versions, or not specified · source: NVD

Python · Python

3.7.0 before 3.7.9; 3.8.0 before 3.8.5 · source: NVD

SIMATIC S7-1500 CPU 1518-4 PN/DP MFP · Siemens

V3.1.0 before V3.1.5; V3.1.0 before V3.1.5 · source: CISA

SIMATIC S7-1500 CPU 1518F-4 PN/DP MFP · Siemens

V3.1.0 before V3.1.5; V3.1.0 before V3.1.5 · source: CISA

SIPLUS S7-1500 CPU 1518-4 PN/DP MFP · Siemens

V3.1.0 before V3.1.5 · source: CISA

Affected product

Max Data

Netapp

All Max Data CVEs

References

NVD

https://nvd.nist.gov/vuln/detail/CVE-2020-15801

CVE.org

https://www.cve.org/CVERecord?id=CVE-2020-15801

Issue Tracking

https://bugs.python.org/issue41304

Patch

https://github.com/python/cpython/pull/21495

Third Party Advisory

https://security.netapp.com/advisory/ntap-20200731-0003/

cert-portal.siemens.com

https://cert-portal.siemens.com/productcert/html/ssa-398330.html