// For flags

CVE-2023-41105

python: file path truncation at \0 characters

Severity Score

7.5
*CVSS v3.1

Exploit Likelihood

*EPSS

Affected Versions

*CPE

Public Exploits

1
*Multiple Sources

Exploited in Wild

-
*KEV

Decision

Attend
*SSVC
Descriptions

An issue was discovered in Python 3.11 through 3.11.4. If a path containing '\0' bytes is passed to os.path.normpath(), the path will be truncated unexpectedly at the first '\0' byte. There are plausible cases in which an application would have rejected a filename for security reasons in Python 3.10.x or earlier, but that filename is no longer rejected in Python 3.11.x.

Python 3.11 os.path.normpath() function is vulnerable to path truncation if a null byte is inserted in the middle of passed path. This may result in bypass of allow lists if implemented before the verification of the path.

*Credits: N/A
CVSS Scores
Attack Vector
Network
Attack Complexity
Low
Privileges Required
None
User Interaction
None
Scope
Unchanged
Confidentiality
None
Integrity
High
Availability
None
* Common Vulnerability Scoring System
SSVC
  • Decision:Attend
Exploitation
None
Automatable
Yes
Tech. Impact
Partial
* Organization's Worst-case Scenario
Timeline
  • 2023-08-23 CVE Reserved
  • 2023-08-23 CVE Published
  • 2023-10-13 First Exploit
  • 2024-09-24 EPSS Updated
  • 2024-10-03 CVE Updated
  • ---------- Exploited in Wild
  • ---------- KEV Due Date
CWE
  • CWE-158: Improper Neutralization of Null Byte or NUL Character
  • CWE-426: Untrusted Search Path
CAPEC
Affected Vendors, Products, and Versions
Vendor Product Version Other Status
Vendor Product Version Other Status <-- --> Vendor Product Version Other Status
Python
Search vendor "Python"
 Python
Search vendor "Python" for product "Python"
 >= 3.11.0 <= 3.11.4
Search vendor "Python" for product "Python" and version " >= 3.11.0 <= 3.11.4"
-
Affected
Netapp
Search vendor "Netapp"
 Active Iq Unified Manager
Search vendor "Netapp" for product "Active Iq Unified Manager"
-windows
Affected