发布于3月6日3月6日 Members Alpine Linux: CVE-2023-28115: Deserialization of Untrusted Data Severity 10 CVSS (AV:N/AC:L/Au:N/C:C/I:C/A:C) Published 03/17/2023 Created 03/22/2024 Added 03/21/2024 Modified 03/22/2024 Description Snappy is a PHP library allowing thumbnail, snapshot or PDF generation from a url or a html page. Prior to version 1.4.2, Snappy is vulnerable to PHAR deserialization due to a lack of checking on the protocol before passing it into the `file_exists()` function. If an attacker can upload files of any type to the server he can pass in the phar:// protocol to unserialize the uploaded file and instantiate arbitrary PHP objects. This can lead to remote code execution especially when snappy is used with frameworks with documented POP chains like Laravel/Symfony vulnerable developer code. If a user can control the output file from the `generateFromHtml()` function, it will invoke deserialization. This vulnerability is capable of remote code execution if Snappy is used with frameworks or developer code with vulnerable POP chains. It has been fixed in version 1.4.2. Solution(s) alpine-linux-upgrade-snappy References https://attackerkb.com/topics/cve-2023-28115 CVE - 2023-28115 https://security.alpinelinux.org/vuln/CVE-2023-28115
