CVE-2026-60357 in Siebel CRM Integration
Summary
by MITRE • 07/22/2026
Vulnerability in the Siebel CRM Integration product of Oracle Siebel CRM (component: Siebel Server Sync for Exchange). Supported versions that are affected are 17.0-26.5. Difficult to exploit vulnerability allows unauthenticated attacker with network access via HTTP to compromise Siebel CRM Integration. Successful attacks of this vulnerability can result in unauthorized update, insert or delete access to some of Siebel CRM Integration accessible data. CVSS 3.1 Base Score 3.7 (Integrity impacts). CVSS Vector: (CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:N/I:L/A:N).
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Analysis
by VulDB Data Team • 07/22/2026
This vulnerability resides within Oracle Siebel CRM Integration's Siebel Server Sync for Exchange component, representing a significant security gap in the enterprise customer relationship management platform that affects versions ranging from 17.0 through 26.5. The flaw manifests as a weakness in the authentication and authorization mechanisms that govern access to critical integration services, creating an attack surface where unauthenticated adversaries can exploit network-based HTTP connections to gain unauthorized access to sensitive data within the system. The vulnerability's classification as difficult to exploit indicates that while the attack vector requires some technical skill or specific conditions to be met, the potential impact remains substantial enough to warrant immediate attention from security professionals.
The technical nature of this flaw stems from insufficient validation mechanisms within the Siebel Server Sync for Exchange service, which fails to properly authenticate incoming requests before processing them. This allows attackers to craft malicious HTTP requests that bypass normal access controls and potentially manipulate data through unauthorized update, insert, or delete operations. The CVSS 3.1 scoring system assigns a base score of 3.7, reflecting the integrity impact severity as medium, with a vector indicating network accessibility (AV:N), high attack complexity (AC:H), no privilege requirements (PR:N), and no user interaction needed (UI:N). The vulnerability operates within an unscoped context (S:U) where the attacker can access some of the system's data without requiring elevated privileges or prior authentication, making it particularly dangerous for organizations that rely heavily on Siebel CRM for customer data management.
The operational impact of this vulnerability extends beyond simple data integrity concerns, as unauthorized modifications to CRM data could disrupt business operations and compromise sensitive customer information. Organizations using affected Siebel CRM versions may face potential data corruption, unauthorized data manipulation, or even indirect financial losses through compromised customer records that could affect sales processes and customer relationship management activities. The attack scenario typically involves network-based exploitation where an attacker can observe or intercept HTTP traffic to the vulnerable service and craft requests that exploit the authentication bypass mechanism. This vulnerability aligns with CWE-287, which addresses improper authentication issues in software systems, and represents a clear violation of fundamental security principles that should be addressed immediately through proper patch management.
Security teams must implement immediate mitigations including network segmentation, firewall rule restrictions, and monitoring for suspicious HTTP traffic patterns targeting the Siebel Server Sync for Exchange service. The recommended approach involves applying Oracle's official patches and updates as soon as they become available, while also implementing additional controls such as intrusion detection systems that can identify anomalous behavior in the affected components. Organizations should conduct thorough vulnerability assessments to identify all instances of the affected software and ensure proper access controls are implemented at multiple layers of their network architecture. The ATT&CK framework categorizes this vulnerability under T1190 - Proxy Process, where attackers leverage legitimate services to conduct unauthorized operations, making it essential for security teams to monitor service behavior and implement comprehensive logging mechanisms that can detect unauthorized data manipulation attempts. Regular security assessments and penetration testing should be conducted to validate the effectiveness of implemented controls and ensure continued protection against similar vulnerabilities in other components of the Siebel CRM ecosystem.