From: Egidio Romano <research () karmainsecurity com>
Date: Fri, 27 Oct 2023 11:45:29 +0200
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phpFox <= 4.8.13 (redirect) PHP Object Injection Vulnerability
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[-] Software Link:
https://www.phpfox.com
[-] Affected Versions:
Version 4.8.13 and prior versions.
[-] Vulnerability Description:
User input passed through the "url" request parameter to the
/core/redirect route is not properly sanitized before being used in a
call to the unserialize() PHP function. This can be exploited by remote,
unauthenticated attackers to inject arbitrary PHP objects into the
application scope, allowing them to perform a variety of attacks, such
as executing arbitrary PHP code.
[-] Proof of Concept:
https://karmainsecurity.com/pocs/CVE-2023-46817.php
[-] Solution:
Upgrade to version 4.8.14 or later.
[-] Disclosure Timeline:
[05/10/2023] - Vendor contacted through https://clients.phpfox.com
[05/10/2023] - Vendor response stating "we currently do not have such
security requirements"
[06/10/2023] - CVE identifier requested
[09/10/2023] - Vulnerability details shared with the vendor, stating the
issue is quite critical
[17/10/2023] - Vendor contacted again, asking for an update
[18/10/2023] - Vendor response stating "this issue is fixed in our
latest version (4.8.13)", but that's not the truth
[26/10/2023] - Version 4.8.14 released
[27/10/2023] - CVE identifier assigned
[27/10/2023] - Public disclosure
[-] CVE Reference:
The Common Vulnerabilities and Exposures project (cve.mitre.org)
has assigned the name CVE-2023-46817 to this vulnerability.
[-] Credits:
Vulnerability discovered by Egidio Romano.
[-] Original Advisory:
https://karmainsecurity.com/KIS-2023-12
[-] Other References:
https://docs.phpfox.com/display/FOX4MAN/phpFox+4.8.14
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- [KIS-2023-12] phpFox <= 4.8.13 (redirect) PHP Object Injection Vulnerability Egidio Romano (Oct 27)