CVE-2025-25034: Insecure Deserialization

Description

A PHP object injection vulnerability exists in SugarCRM versions prior to 6.5.24, 6.7.13, 7.5.2.5, 7.6.2.2, and 7.7.1.0 due to improper validation of PHP serialized input in the SugarRestSerialize.php script. The vulnerable code fails to sanitize the rest_data parameter before passing it to the unserialize() function. This allows an unauthenticated attacker to submit crafted serialized data containing malicious object declarations, resulting in arbitrary code execution within the application context. Although SugarCRM released a prior fix in advisory sugarcrm-sa-2016-001, the patch was incomplete and failed to address some vectors. Exploitation evidence was observed by the Shadowserver Foundation on 2024-09-13 UTC.

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Weakness Type (CWE)

CWE-502 Deserialization of Untrusted Data

References

Other References

https://karmainsecurity.com/KIS-2016-07 https://raw.githubusercontent.com/rapid7/metasploit-framework/master/modules/exploits/unix/webapp/sugarcrm_rest_unserialize_exec.rb https://vulncheck.com/advisories/sugarcrm-php-deserialization-rce https://web.archive.org/web/20160508053502/http://www.sugarcrm.com/security/sugarcrm-sa-2016-001 https://web.archive.org/web/20160725194502/http://www.sugarcrm.com/security/sugarcrm-sa-2016-008 https://www.exploit-db.com/exploits/40344 https://www.sugarcrm.com/crm/

Frequently Asked Questions

What is CVE-2025-25034? +

A PHP object injection vulnerability exists in SugarCRM versions prior to 6.5.24, 6.7.13, 7.5.2.5, 7.6.2.2, and 7.7.1.0 due to improper validation of PHP serialized input in the SugarRestSerialize.php script. The vulnerable code fails to sanitize the rest_data parameter before passing it to the unserialize() function. This allows an unauthenticated attacker to submit crafted serialized data containing malicious object declarations, resulting in arbitrary code execution within the application context. Although SugarCRM released a prior fix in advisory sugarcrm-sa-2016-001, the patch was incomplete and failed to address some vectors. Exploitation evidence was observed by the Shadowserver Foundation on 2024-09-13 UTC.

How do I check if I'm vulnerable to CVE-2025-25034? +

You can use Secably's free Website Scanner to check your website for known vulnerabilities. For infrastructure scanning, use the Port Scanner to identify exposed services that may be affected. Check the vendor advisories linked above for specific patch and version information.

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