CVE-2022-22984

Command Injection in Snyk packages before specified versions

• CVSS 6.3
• CWE-78
• Input Validation and Sanitization
• Remote

The package snyk before 1.1064.0; the package snyk-mvn-plugin before 2.31.3; the package snyk-gradle-plugin before 3.24.5; the package @snyk/snyk-cocoapods-plugin before 2.5.3; the package snyk-sbt-plugin before 2.16.2; the package snyk-python-plugin before 1.24.2; the package snyk-docker-plugin before 5.6.5; the package @snyk/snyk-hex-plugin before 1.1.6 are vulnerable to Command Injection due to an incomplete fix for [CVE-2022-40764](https://security.snyk.io/vuln/SNYK-JS-SNYK-3037342). A successful exploit allows attackers to run arbitrary commands on the host system where the Snyk CLI is installed by passing in crafted command line flags. In order to exploit this vulnerability, a user would have to execute the snyk test command on untrusted files. In most cases, an attacker positioned to control the command line arguments to the Snyk CLI would already be positioned to execute arbitrary commands. However, this could be abused in specific scenarios, such as continuous integration pipelines, where developers can control the arguments passed to the Snyk CLI to leverage this component as part of a wider attack against an integration/build pipeline. This issue has been addressed in the latest Snyk Docker images available at https://hub.docker.com/r/snyk/snyk as of 2022-11-29. Images downloaded and built prior to that date should be updated. The issue has also been addressed in the Snyk TeamCity CI/CD plugin as of version v20221130.093605.

CVE

CVE-2022-22984

CWE

CWE-78

CVSS base score

6.3

Published

2022-11-30

OWASP

A03 Injection

Orthogonal defect classification

Function

Code defect classification

Incorrect Functionality

Category

Input Validation and Sanitization

Subcategory

Command Injection

Accessibility scope

Remote

Impact

Arbitrary Code Execution

Fixed by upgrading

Yes

Solution

Update the vulnerable Snyk packages to versions 1.1064.0 or higher, 2.31.3 or higher, 3.24.5 or higher, 2.5.3 or higher, 2.16.2 or higher, 1.24.2 or higher, 5.6.5 or higher, and 1.1.6 or higher.

import subprocess

def snyk_test(command_args):
    """Vulnerable function that demonstrates the security issue."""
    # VULNERABLE: This code is susceptible to command injection
    command = ['snyk', 'test'] + command_args
    result = subprocess.run(command, capture_output=True, text=True)
    return result.stdout

user_input = ['--file', 'untrusted_file.txt; rm -rf /']
output = snyk_test(user_input)
print(output)

import subprocess

def snyk_test(command_args):
    """Secure function that fixes the vulnerability."""
    allowed_args = ['--all-projects', '--json', '--file', '--path']
    for arg in command_args:
        if arg not in allowed_args:
            raise ValueError(f"Unsafe argument detected: {arg}")
    
    command = ['snyk', 'test'] + command_args
    result = subprocess.run(command, capture_output=True, text=True)
    return result.stdout

try:
    user_input = ['--file', 'untrusted_file.txt; rm -rf /']
    output = snyk_test(user_input)
    print(output)
except ValueError as e:
    print

@misc{vaitp:cve202222984,
  title        = {{Command Injection in Snyk packages before specified versions}},
  author       = {Bogaerts, Fr\'ed\'eric and Ivaki, Naghmeh and Fonseca, Jos\'e},
  year         = {2022},
  note         = {VAITP Python Vulnerability Dataset, entry CVE-2022-22984},
  howpublished = {\url{https://netpack.pt/vaitp/vulnerability/CVE-2022-22984/}}
}