Path Manipulation Vulnerability in Python by the Python Software Foundation
CVE-2023-41105

7.5HIGH

Key Information:

Vendor
Python
Status
Python
Vendor
CVE Published:
23 August 2023

Badges

👾 Exploit Exists

Summary

An issue exists in Python versions 3.11 through 3.11.4 where a path containing null ('\0') bytes can be processed by os.path.normpath(), leading to unexpected truncation. This alteration allows potentially unsafe filenames that would have been rejected in previous versions (3.10.x and earlier) to pass through, posing security risks for applications that rely on accurate path handling. Developers should be aware of this vulnerability to mitigate its implications on their systems.

References

https://github.com/python/cpython/issues/106242
https://github.com/python/cpython/pull/107983
https://github.com/python/cpython/pull/107981

CVSS V3.1

Score:
7.5
Severity:
HIGH
Confidentiality:
None
Integrity:
High
Availability:
None
Attack Vector:
Network
Attack Complexity:
Low
Privileges Required:
None
User Interaction:
None
Scope:
Unchanged

Timeline

  • 🟡

    Public PoC available

  • 👾

    Exploit known to exist

  • Vulnerability published

  • Vulnerability Reserved

.