EUVD-2025-18811CVSS Vector
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
Lifecycle Timeline
3Description
IBM InfoSphere Information Server 11.7.0.0 through 11.7.1.6 could allow a remote attacker to cause a denial of service due to insufficient validation of incoming request resources.
Analysis
IBM InfoSphere Information Server versions 11.7.0.0 through 11.7.1.6 contain a denial of service vulnerability caused by insufficient validation of incoming request resources (CWE-770: Allocation of Resources Without Limits or Throttling). A remote, unauthenticated attacker can exploit this over the network to exhaust server resources and cause service unavailability. The CVSS 7.5 score reflects high availability impact with no authentication required and low attack complexity.
Technical Context
The vulnerability resides in IBM InfoSphere Information Server's request handling mechanism, which fails to properly validate and limit resource allocation for incoming requests. CWE-770 (Allocation of Resources Without Limits or Throttling) indicates the root cause: the application allocates resources (memory, CPU, connections, or processing capacity) in response to user-controlled input without enforcing limits or rate throttling. This is a classic resource exhaustion attack vector in enterprise data integration platforms. The affected product is IBM InfoSphere Information Server, a data integration and governance tool that processes ETL workflows and metadata. The vulnerable component likely resides in the web services layer, API handler, or request dispatcher that fails to implement proper request validation, rate limiting, or resource quotas before processing begins.
Affected Products
InfoSphere Information Server (11.7.0.0, 11.7.0.1, 11.7.0.2, 11.7.1.0, 11.7.1.1, 11.7.1.2, 11.7.1.3, 11.7.1.4, 11.7.1.5, 11.7.1.6)
Remediation
Upgrade IBM InfoSphere Information Server to version 11.7.1.7 or later (patch version to be confirmed in IBM security bulletin).; priority: Immediate Workaround (Temporary): Implement network-level rate limiting and request throttling using a reverse proxy (e.g., NGINX, Apache) or Web Application Firewall (WAF) in front of InfoSphere servers to limit incoming request rates and resource consumption per source IP.; priority: High Workaround (Temporary): Restrict network access to InfoSphere Information Server to trusted internal networks only; disable external/internet-facing access until patched.; priority: High Monitoring: Monitor InfoSphere server resource utilization (CPU, memory, connection count) for anomalous spikes; alert on sustained high resource consumption from single or distributed sources.; priority: Medium Vendor Advisory: Consult IBM's security advisory and fix pack release notes for detailed patch deployment steps and any compatibility considerations.; link: https://www.ibm.com/support/pages/security-bulletin-infosphere-information-server-remote-denial-service-vulnerability
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