#VU73725 Improper access control in Drupal

Vulnerability identifier: #VU73725

Vulnerability risk: Low

CVSSv4.0: 0.5 [CVSS:4.0/AV:N/AC:L/AT:P/PR:N/UI:A/VC:L/VI:N/VA:N/SC:N/SI:N/SA:N/E:U/U:Clear]

CVE-ID: N/A

CWE-ID: CWE-284

Exploitation vector: Network

Exploit availability: No

Vulnerable software:
Drupal
Web applications / CMS

Vendor: Drupal

Description

The vulnerability allows a remote attacker to gain unauthorized access to otherwise restricted functionality.

The vulnerability exists due to improper access restrictions to the page that outputs the markup from phpinfo() to assist with diagnosing PHP configuration.. A remote attacker who can exploit an XSS vulnerability on the website can retrieve data from the phpinfo() output.

Mitigation
Install updates from vendor's website.

Vulnerable software versions

Drupal: 1.7.5.2 - 10.0.4, 4.0 - 4.7.11, 5.x - 5.23, 6.x-dev - 6.38, 7.x-dev - 7.94, 8.0 - 8.0.6, 8.1.0 rc1 - 8.1.10, 8.2.0 beta1 - 8.2.8, 8.3.0 alpha1 - 8.3.9, 8.4.0 alpha1 - 8.4.8, 8.5.0 rc1 - 8.5.15, 8.6.0 rc1 - 8.6.18, 8.7.0 alpha1 - 8.7.14, 8.8.0 alpha1 - 8.8.12, 8.9.0 rc1 - 8.9.20, 9.0.0 alpha1 - 9.0.14, 9.1.0 - 9.1.15, 9.2.0 alpha1 - 9.2.21, 9.3.0 alpha1 - 9.3.22, 9.4.0 alpha1 - 9.4.11, 9.5.0 beta1, 9.5.0 rc1, 9.5.0 beta2, 9.5.0 rc2, 9.5.0, 9.5.1, 9.5.2, 9.5.3, 9.5.4

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External links
https://www.drupal.org/sa-core-2023-004

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Q & A

Can this vulnerability be exploited remotely?

Yes. This vulnerability can be exploited by a remote non-authenticated attacker via the Internet.

Is there known malware, which exploits this vulnerability?

No. We are not aware of malware exploiting this vulnerability.