Cloud Vulnerability DB
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Vulnerability DatabaseCVE-2025-25034
CVE-2025-25034:
SugarCRM vulnerability analysis and mitigation
Overview
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 vulnerability was discovered by Egidio Romano and was assigned CVE-2025-25034. The issue was initially addressed in a prior fix (sugarcrm-sa-2016-001), but the patch was incomplete and required additional fixes (SugarCRM Advisory 1, SugarCRM Advisory 2).
Technical details
The vulnerability exists in the /service/core/REST/SugarRestSerialize.php script where the rest_data parameter is not properly sanitized before being passed to the unserialize() function. The vulnerable code fails to validate PHP serialized input, allowing attackers to submit crafted serialized data containing malicious object declarations. This vulnerability is classified as CWE-502 (Deserialization of Untrusted Data) and has received a CVSS v4.0 score of 9.3 CRITICAL with vector string CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N (VulnCheck).
Impact
The vulnerability allows unauthenticated attackers to execute arbitrary PHP code within the application context. This can lead to complete system compromise, as attackers can execute commands with the permissions of the webserver (Karma Security).
Mitigation and workarounds
Users are strongly advised to upgrade to the fixed versions: 6.5.24, 6.7.13, 7.5.2.5, 7.6.2.2, or 7.7.1.0. There are no workarounds available for this vulnerability. SugarCRM On-Demand customers received automatic updates to address this issue (SugarCRM Advisory 2).
Additional resources
Source: This report was generated using AI
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