CVE-2026-113688 in IT Service Management Suite
Summary
by MITRE • 10/29/2026
Server-side request forgery in the SmartIT URL-based attachment feature of BMC IT Service Management Suite versions 25.3.01, 25.4.01, and 26.1.01 allows authenticated users to make server-side requests to internal services and observe response information.
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Analysis
by VulDB Data Team • 10/29/2026
The vulnerability identified in the SmartIT URL-based attachment feature of BMC IT Service Management Suite versions 25.3.01, 25.4.01, and 26.1.01 represents a critical server-side request forgery flaw that exploits the application's handling of external resource references. This specific implementation allows authenticated users to supply arbitrary URLs as part of attachment operations, which the backend system then processes by fetching content from those locations without adequate validation or sanitization mechanisms. By manipulating these input parameters, an attacker can compel the vulnerable server to initiate HTTP requests to internal network services that are typically inaccessible from external networks due to firewall rules or network segmentation strategies. This behavior effectively bypasses perimeter security controls because the malicious request originates from a trusted internal IP address rather than directly from the attacker's machine, thereby exploiting the trust relationship between the application and its backend infrastructure.
From a technical perspective, this flaw aligns with CWE-918, which defines Server-Side Request Forgery as a vulnerability where an attacker causes a web server to make requests on their behalf. The operational impact of such a misconfiguration is severe, particularly in enterprise environments where IT service management systems often have deep integration with internal databases, configuration management systems, and other sensitive backend services. An authenticated adversary can leverage this capability to perform port scanning against internal hosts by observing differences in response times or error messages returned for different ports. Furthermore, the attacker may attempt to access administrative interfaces of internal applications that lack additional authentication layers when accessed from localhost or specific trusted subnets. In more advanced scenarios, if the backend server has access to cloud metadata services such as AWS Instance Metadata Service version 1, the attacker could potentially retrieve temporary security credentials and escalate privileges within the broader infrastructure environment.
This attack vector is categorized under MITRE ATT&CK technique T1598, specifically Phishing for Intranet Resources, although it differs from traditional phishing in that it does not require deceiving a human user but rather exploits automated server behavior to probe internal networks. The ability to observe response information means the vulnerability supports blind SSRF scenarios where timing attacks or error-based extraction techniques can be employed to exfiltrate data indirectly. This capability transforms what might appear as a simple file attachment feature into a powerful tool for network reconnaissance and lateral movement within an organization's private cloud or on-premises infrastructure. The presence of authentication requirements does not mitigate the risk, as insider threats or compromised user accounts remain viable vectors for exploitation, making this a significant concern for organizations relying on these specific versions of BMC IT Service Management Suite.
To address this vulnerability, immediate remediation should focus on updating to patched versions released by BMC Software that implement strict input validation and URL allowlisting mechanisms. Developers must ensure that the server-side processing of attachment URLs restricts protocols to safe schemes such as HTTPS or HTTP only when explicitly required for public resources, while completely blocking access to private IP ranges including RFC 1918 addresses, link-local addresses, and loopback interfaces. Implementing a dedicated proxy service with strict egress filtering policies can also serve as an effective defense-in-depth measure by intercepting outbound requests from the application server and validating them against a predefined list of permitted destinations. Additionally, organizations should audit their internal network segmentation to ensure that critical services do not rely solely on IP-based trust relationships for security, thereby reducing the blast radius even if such vulnerabilities are exploited in other contexts within the ecosystem.