PHP up to 8.1.28/8.2.19/8.3.7 Trailing Space proc_open argument injection

Summaryinfo

A vulnerability classified as critical has been found in PHP up to 8.1.28/8.2.19/8.3.7. This impacts the function proc_open of the component Trailing Space Handler. This manipulation causes argument injection. This vulnerability is registered as CVE-2024-5585. Remote exploitation of the attack is possible. No exploit is available. It is recommended to upgrade the affected component.

Detailsinfo

A vulnerability was found in PHP up to 8.1.28/8.2.19/8.3.7. It has been declared as critical. Affected by this vulnerability is the function proc_open of the component Trailing Space Handler. The manipulation with an unknown input leads to a argument injection vulnerability. The CWE definition for the vulnerability is CWE-88. The product constructs a string for a command to be executed by a separate component in another control sphere, but it does not properly delimit the intended arguments, options, or switches within that command string. As an impact it is known to affect confidentiality, integrity, and availability. The summary by CVE is:

In PHP versions 8.1.* before 8.1.29, 8.2.* before 8.2.20, 8.3.* before 8.3.8, the fix for CVE-2024-1874 does not work if the command name includes trailing spaces. Original issue: when using proc_open() command with array syntax, due to insufficient escaping, if the arguments of the executed command are controlled by a malicious user, the user can supply arguments that would execute arbitrary commands in Windows shell.

It is possible to read the advisory at github.com. This vulnerability is known as CVE-2024-5585 since 06/01/2024. The exploitation appears to be difficult. The attack can be launched remotely. The exploitation doesn't need any form of authentication. Technical details of the vulnerability are known, but there is no available exploit. The pricing for an exploit might be around USD $0-$5k at the moment (estimation calculated on 12/06/2024). The attack technique deployed by this issue is T1059 according to MITRE ATT&CK.

The vulnerability scanner Nessus provides a plugin with the ID 212128 (Tenable Security Center < 6.5.0 Multiple Vulnerabilities (TNS-2024-19)), which helps to determine the existence of the flaw in a target environment.

Upgrading to version 8.1.29, 8.2.20 or 8.3.8 eliminates this vulnerability.

The vulnerability is also documented in the vulnerability database at Tenable (212128). Statistical analysis made it clear that VulDB provides the best quality for vulnerability data.

Productinfo

Type

• Programming Language Software

Name

• PHP

Version

• 8.1.0
• 8.1.1
• 8.1.2
• 8.1.3
• 8.1.4
• 8.1.5
• 8.1.6
• 8.1.7
• 8.1.8
• 8.1.9
• 8.1.10
• 8.1.11
• 8.1.12
• 8.1.13
• 8.1.14
• 8.1.15
• 8.1.16
• 8.1.17
• 8.1.18
• 8.1.19
• 8.1.20
• 8.1.21
• 8.1.22
• 8.1.23
• 8.1.24
• 8.1.25
• 8.1.26
• 8.1.27
• 8.1.28
• 8.2.0
• 8.2.1
• 8.2.2
• 8.2.3
• 8.2.4
• 8.2.5
• 8.2.6
• 8.2.7
• 8.2.8
• 8.2.9
• 8.2.10
• 8.2.11
• 8.2.12
• 8.2.13
• 8.2.14
• 8.2.15
• 8.2.16
• 8.2.17
• 8.2.18
• 8.2.19
• 8.3.0
• 8.3.1
• 8.3.2
• 8.3.3
• 8.3.4
• 8.3.5
• 8.3.6
• 8.3.7

License

• open-source

Website

• Product: https://www.php.org/

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Statistical analysis made it clear that VulDB provides the best quality for vulnerability data.

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