CVE-2024-55910 Overview
CVE-2024-55910 is a Server-Side Request Forgery (SSRF) vulnerability affecting IBM Concert Software versions 1.0.0 through 1.0.5. An authenticated attacker can abuse the flaw to send unauthorized requests originating from the vulnerable server. Successful exploitation enables internal network enumeration and can pivot into follow-on attacks against services reachable from the Concert host. The vulnerability is classified under CWE-918 (SSRF).
Critical Impact
An authenticated attacker can force the IBM Concert server to issue attacker-controlled HTTP requests, exposing internal services and enabling reconnaissance of otherwise unreachable network segments.
Affected Products
- IBM Concert Software 1.0.0
- IBM Concert Software versions 1.0.1 through 1.0.4
- IBM Concert Software 1.0.5
Discovery Timeline
- 2025-05-02 - CVE-2024-55910 published to the National Vulnerability Database (NVD)
- 2026-06-17 - Last updated in NVD database
Technical Details for CVE-2024-55910
Vulnerability Analysis
The vulnerability resides in request-handling logic within IBM Concert Software that accepts a URL or host parameter and issues an outbound HTTP request without adequate validation of the destination. An authenticated user can supply URLs pointing to internal hosts, loopback interfaces, or cloud metadata endpoints. The server then executes those requests using its own network position and identity.
Because the request originates from a trusted internal system, it bypasses perimeter firewalls and network segmentation controls. The attacker can enumerate internal IP ranges, probe listening services, and interact with administrative interfaces exposed only to the server.
Root Cause
The root cause is insufficient validation and allow-listing of user-supplied URLs before the application performs an outbound request. There is no restriction preventing requests to private IP ranges (10.0.0.0/8, 172.16.0.0/12, 192.168.0.0/16), link-local addresses (169.254.0.0/16), or loopback (127.0.0.0/8). This design flaw is characteristic of CWE-918.
Attack Vector
Exploitation requires network access to the Concert application and valid authenticated credentials. The attacker submits a crafted request containing a URL parameter directed at an internal target. The server processes the request and returns response data, timing signals, or error messages that reveal information about the internal target. Refer to the IBM Support Article for vendor-supplied technical guidance.
No public proof-of-concept exploit code is available for this vulnerability, and it is not listed in the CISA Known Exploited Vulnerabilities catalog.
Detection Methods for CVE-2024-55910
Indicators of Compromise
- Outbound HTTP requests from the IBM Concert host targeting private IP ranges or cloud metadata endpoints such as 169.254.169.254.
- Application logs showing user-controlled URL parameters containing internal hostnames, IP addresses, or non-standard schemes like file:// or gopher://.
- Unexpected DNS resolution requests from the Concert application server for internal-only domain names.
Detection Strategies
- Instrument the Concert application host to log all outbound HTTP client connections, including destination host, port, and initiating user context.
- Deploy egress filtering with alerting on connections from the Concert server to RFC1918 addresses that fall outside expected integration destinations.
- Correlate authenticated session activity with anomalous outbound request patterns to identify credential misuse.
Monitoring Recommendations
- Forward Concert application and web-server access logs to a centralized SIEM for retention and query.
- Alert on HTTP response codes and payload sizes that deviate from baseline for URL-accepting endpoints.
- Track authenticated user accounts issuing high volumes of URL-parameter requests within short time windows.
How to Mitigate CVE-2024-55910
Immediate Actions Required
- Upgrade IBM Concert Software to a fixed release as directed in the IBM Support Article.
- Audit authenticated user accounts and revoke credentials that are no longer required or that show signs of misuse.
- Restrict outbound network access from the Concert host to only the endpoints required for legitimate integrations.
Patch Information
IBM has published remediation guidance for CVE-2024-55910 in the vendor advisory. Administrators should consult the IBM Support Article for the specific fixed version and upgrade instructions applicable to IBM Concert Software 1.0.0 through 1.0.5.
Workarounds
- Place the Concert application behind an egress proxy that enforces an allow-list of permitted outbound destinations.
- Block outbound traffic from the Concert host to internal management networks, cloud metadata services, and loopback interfaces at the network layer.
- Enforce strict authentication controls and multi-factor authentication to raise the barrier for the authenticated-attacker precondition.
Disclaimer: This content was generated using AI. While we strive for accuracy, please verify critical information with official sources.
