CVE-2024-27320

Arbitrary code execution in Refuel Autolabel via malicious CSV files.

• CVSS 7.8
• CWE-1236
• Input Validation and Sanitization
• Remote

An arbitrary code execution vulnerability exists in versions 0.0.8 and newer of the Refuel Autolabel library because of the way its classification tasks handle provided CSV files. If a victim user creates a classification task using a maliciously crafted CSV file containing Python code, the code will be passed to an eval function which executes it.

CVE

CVE-2024-27320

CWE

CWE-1236

CVSS base score

7.8

Published

2024-09-12

OWASP

A01 Injection

Orthogonal defect classification

Function

Code defect classification

Incorrect Functionality

Category

Input Validation and Sanitization

Subcategory

Insecure Parsing or Deserialization

Accessibility scope

Remote

Impact

Arbitrary Code Execution

Affected component

Refuel Autol

Fixed by upgrading

Yes

Solution

Upgrade to version 0.0.9 or newer and avoid using eval on untrusted input.

import csv

def process_csv(file_path):
    """Vulnerable function that demonstrates the security issue."""
    with open(file_path, 'r') as csvfile:
        reader = csv.reader(csvfile)
        for row in reader:
            expression = row[0]
            result = eval(expression)
            print(result)

import csv
import ast

def process_csv(file_path):
    """Secure function that fixes the vulnerability."""
    # SECURE: This version prevents command injection
    with open(file_path, 'r') as csvfile:
        reader = csv.reader(csvfile)
        for row in reader:
            expression = row[0]
            result = ast.literal_eval(expression)
            print(result)

"__import__('os').system('whoami')"

@misc{vaitp:cve202427320,
  title        = {{Arbitrary code execution in Refuel Autolabel via malicious CSV files.}},
  author       = {Bogaerts, Fr\'ed\'eric and Ivaki, Naghmeh and Fonseca, Jos\'e},
  year         = {2024},
  note         = {VAITP Python Vulnerability Dataset, entry CVE-2024-27320},
  howpublished = {\url{https://netpack.pt/vaitp/vulnerability/CVE-2024-27320/}}
}