CVE-2024-45656 Overview
CVE-2024-45656 is a hardcoded credentials vulnerability affecting IBM Flexible Service Processor (FSP) firmware across multiple IBM Power System product lines. The FSP firmware contains static credentials that may allow network-based attackers to gain service-level privileges to the FSP without requiring authentication. This vulnerability poses a significant risk to enterprise infrastructure as FSP provides critical hardware management capabilities for IBM Power Systems.
Critical Impact
Remote unauthenticated attackers can leverage hardcoded credentials to gain service privileges on the Flexible Service Processor, potentially compromising the entire Power System hardware management infrastructure.
Affected Products
- IBM Power System E1080 (9080-HEX) - Firmware FW1050.00 through FW1050.21, FW1060.00 through FW1060.10
- IBM Power System E980 (9080-M9S) - Firmware FW950.00 through FW950.C0, FW1030.00 through FW1030.61
- IBM Power System E950 (9040-MR9) - Firmware FW950.00 through FW950.C0, FW1030.00 through FW1030.61
- IBM Power System S922/S924 (9009-22A, 9009-42A series) - Firmware FW950.00 through FW950.C0
- IBM Power System E850/E870/E880 series - Firmware FW860.00 through FW860.B3
- IBM ESS 5000 (5105-22E) - Affected firmware versions
Discovery Timeline
- October 29, 2024 - CVE-2024-45656 published to NVD
- December 3, 2025 - Last updated in NVD database
Technical Details for CVE-2024-45656
Vulnerability Analysis
The IBM Flexible Service Processor (FSP) is a dedicated service processor embedded within IBM Power Systems that handles critical hardware management functions including system initialization, error logging, environmental monitoring, and remote management capabilities. This vulnerability stems from the presence of static (hardcoded) credentials within the FSP firmware that remain constant across deployments and firmware versions.
The vulnerability is classified under CWE-798 (Use of Hard-coded Credentials), indicating that the firmware contains authentication credentials that are not configurable and remain the same across all affected systems. This architectural flaw allows any attacker with network access to the FSP management interface to authenticate using these well-known credentials.
The attack surface is particularly concerning because the FSP interface is often accessible over the network for remote management purposes. Once an attacker gains service-level privileges to the FSP, they can potentially manipulate hardware configurations, access diagnostic information, intercept system management data, or disrupt the operation of the underlying Power System.
Root Cause
The root cause of this vulnerability is the use of hardcoded credentials within the IBM Flexible Service Processor firmware. Rather than implementing dynamic credential generation, unique per-device credentials, or proper credential management workflows, the firmware relies on static authentication data that is identical across all affected systems and firmware versions.
This design pattern was likely implemented for manufacturing convenience or support purposes but represents a fundamental security weakness. The credentials persist across firmware updates within the vulnerable version ranges (FW860.00 through FW860.B3, FW950.00 through FW950.C0, FW1030.00 through FW1030.61, FW1050.00 through FW1050.21, and FW1060.00 through FW1060.10).
Attack Vector
The attack vector is network-based, requiring no user interaction and no prior privileges. An attacker with network visibility to the FSP management interface can exploit this vulnerability by simply authenticating using the static credentials embedded in the firmware.
The exploitation workflow involves:
- Network reconnaissance to identify IBM Power Systems with accessible FSP interfaces
- Connection to the FSP management interface (typically via web interface or SSH)
- Authentication using the static credentials present in vulnerable firmware versions
- Gaining service-level privileges to perform privileged operations on the FSP
The attack does not require any special tools or complex exploitation techniques - knowledge of the hardcoded credentials is sufficient to compromise affected systems.
Detection Methods for CVE-2024-45656
Indicators of Compromise
- Unexpected authentication events to FSP management interfaces from unknown IP addresses
- Service account activity on FSP during non-maintenance windows
- Configuration changes to FSP settings without corresponding change tickets
- Multiple successful authentications to FSP from different geographic locations in short timeframes
Detection Strategies
- Implement network monitoring for connections to FSP management ports from unauthorized network segments
- Enable and centralize FSP audit logs to detect anomalous authentication patterns
- Deploy network intrusion detection signatures to identify FSP management protocol traffic from unexpected sources
- Correlate FSP access logs with authorized change management records to identify unauthorized access
Monitoring Recommendations
- Configure alerting for any FSP authentication events outside of scheduled maintenance windows
- Monitor network traffic to/from FSP management interfaces using flow analysis
- Implement baseline monitoring of FSP configuration states to detect unauthorized modifications
- Review FSP access logs regularly as part of security operations procedures
How to Mitigate CVE-2024-45656
Immediate Actions Required
- Apply firmware updates as specified in the IBM Security Patch Advisory
- Restrict network access to FSP management interfaces to authorized management networks only
- Implement firewall rules to block FSP management traffic from untrusted network segments
- Audit current FSP access logs for signs of unauthorized access prior to remediation
Patch Information
IBM has released security updates to address this vulnerability. Organizations should apply the appropriate firmware updates based on their Power System models and current firmware versions. Detailed patch information and updated firmware versions are available in the IBM Security Advisory.
Affected firmware version ranges that require updates:
- FW860.00 through FW860.B3
- FW950.00 through FW950.C0
- FW1030.00 through FW1030.61
- FW1050.00 through FW1050.21
- FW1060.00 through FW1060.10
Workarounds
- Isolate FSP management interfaces on dedicated management VLANs with strict access controls
- Implement network segmentation to prevent access to FSP interfaces from general user networks
- Deploy jump hosts or bastion servers as the only authorized access point for FSP management
- Enable comprehensive logging and alerting on FSP access until patches can be applied
# Example: Firewall rule to restrict FSP access (adjust ports/IPs as needed)
# Only allow FSP management access from authorized management subnet
iptables -A INPUT -p tcp --dport 443 -s 10.10.10.0/24 -j ACCEPT
iptables -A INPUT -p tcp --dport 443 -j DROP
Disclaimer: This content was generated using AI. While we strive for accuracy, please verify critical information with official sources.
