Layer Seven Security

10KBLAZE: Secure Your Systems with SAP Solution Manager

On May 2, the Department of Homeland Security issued an alert for SAP customers in response to the disclosure of new exploits targeting vulnerable SAP components. According to some reports, the so-called 10KBLAZE exploits could impact 90% of SAP installations worldwide. The exploits target misconfigurations in the gateway server and message server installed in most SAP systems including S/4HANA, ERP and CRM. The successful execution of the exploits could enable attackers to exfiltrate or modify data and provoke a denial of service without authentication. In other words, attackers can completely compromise target SAP systems without any user credentials.

The new exploits target known vulnerabilities addressed by notes and advisories released by SAP since 2005.  Note 821875 details measures to secure the message server, including restricting external access, separating internal and external communications, and maintaining secure access control lists. The profile parameter ms/monitor should be set to 0 to prevent external programs such as msmon from administering the message server at the operating system level. Access to transaction SMMS should also be restricted since the setting can be changed dynamically using the Message Server Monitor within the application server. A separate port for internal communication between application servers should be defined using parameter rdisp/msserv_internal. This will prevent external clients from intercepting or rerouting internal message server communications.  The port should not be exposed to clients or intranets. Finally, the parameter ms/acl_info should specify the file containing a restrictive access control list of hosts, domains, IP addresses or subnets for application servers permitted to log on with the message server.

ACLs should also be defined for the gateway server to control access to starting external programs.  This can be performed using the gateway security file sec_info. The correct syntax for the file depends on the kernel level. For kernel 7.20 and higher, the setting USER-HOST=LOCAL is recommended to protect against 10KBLAZE exploits. This will allow connections from the same server instance. The setting USER-HOST=INTERNAL could be vulnerable but is required for SID clusters. For detailed guidance, refer to Note 1408081. The ACLs should be supported by the setting gw/acl_mode to 1. This parameter defines the behavior of the gateway server if sec_info does not exist.

Since some 10KBLAZE exploits are targeted at modifying or redirecting data packets, enabling SNC to authenticate and encrypt client-server communications is recommended.

SAP systems vulnerable to 10KBLAZE exploits can be discovered using SAP Solution Manager. The Cybersecurity Extension for SAP Solution Manager automatically monitors security settings for the message server and gateway server including profile parameter settings, access control lists and users with critical transactions such as SMMS. The extension also monitors message and gateway logs for external monitor commands, successful and unsuccessful program starts, and other events. Alerts are triggered by the extension for suspected exploits.

The example below illustrates how you can discover insecure sec_info entries that could expose systems to 10KBLAZE exploits.

Click on Vulnerability Report in the Fiori Launchpad.

SAP Cybersecurity Extension for Solution Manager 10

Filter by ABAP systems, select the check-box for the target system and click on Display.

SAP Cybersecurity Extension for Solution Manager 09

Filter for vulnerabilities in open status within the area of RFC Security. Click on the check for starting of external programs.

SAP Cybersecurity Extension for Solution Manager 08

Review the details and recommendation. Click on the linked SAP Notes and SAP Help.

SAP Cybersecurity Extension for Solution Manager 07

Click on Additional Information to review the insecure entries in the sec_info ACL.

SAP Cybersecurity Extension for Solution Manager 03

Focus on entries with the setting USER-HOST=internal.

Click on the download icon to export the current settings.

If required, add comments in the Comment section.

SAP Cybersecurity Extension for Solution Manager 04

The finding for the system will be automatically removed from the report once the sec_info entries are updated. However, you can manually change the status using the Change Status option. Note that status changes are tracked in the extension.

SAP Cybersecurity Extension for Solution Manager 05

You can also assign responsibility for remediating the finding to specific groups using the Change Owner option.

SAP Cybersecurity Extension for Solution Manager 06

Webinar: 10KBLAZE – Secure Your SAP Systems with CVA and SolMan

According to a recent report, thousands of SAP installations may be vulnerable to 10KBLAZE exploits targeting SAP applications.

Join SAP and Layer Seven Security to learn how to secure your SAP systems against the exploits with SAP Code Vulnerability Analyzer (CVA) and SAP Solution Manager. CVA performs static code analysis to detect vulnerabilities in custom code. SAP Solution Manager detects vulnerabilities and threats in SAP systems including components such as the gateway server, message server and SAProuter, targeted by 10KBLAZE.

Together, CVA and Solution Manager provide an integrated platform to secure your business-critical SAP systems against 10KBLAZE and other exploits.

Thu, Jun 6, 2019
11:00 AM – 12:00 PM EDT

REGISTER

Webinar Recording: Security Analytics with SAP Web Intelligence

Watch the webinar replay to learn how to visualize security risks in your SAP systems using interactive reports in SAP Web Intelligence. Powered by the BusinessObjects platform, Web Intelligence connects directly to data sources in SAP Solution Manager to convey system vulnerabilities, missing security notes and open alerts using dynamic charts and graphs and detailed tables.

Join the global leaders in security monitoring with SAP Solution Manager to learn how to:

– Discover security vulnerabilities
– Manage missing patches
– Detect alerts for security incidents
– Collaborate and track remediation efforts using comments
– Filter and sort report data
– Export and share results
– Access reports remotely

We will also demonstrate how you can trial Web Intelligence using Layer Seven’s cloud platform.

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Secure, Patch & Respond: Security Analytics with SAP Web Intelligence

SAP Web Intelligence enables users to visualize and manage security risks in SAP systems using interactive reports delivered through an intuitive web interface. Powered by the BusinessObjects platform, Web Intelligence connects directly to data sources in SAP Solution Manager to convey system vulnerabilities, missing security notes and open alerts using dynamic charts and graphs and detailed tables.

Animated charts summarize risks by system, location, priority and other dimensions. Results can be filtered and sorted to focus on specific areas. Users can comment on report elements for collaboration, decision-making and tracking remediation efforts. Reports can be exported to Excel, HTML and PDF. Reports can also be accessed remotely using the mobile app for SAP BusinessObjects.

The security reports are comprised of five distinct sections. The first section includes a series of charts that summarize risks across three dimensions: vulnerabilities, security notes, and alerts. The results can be filtered to focus on single or multiple systems.

The second section includes trend charts, bar graphs, geo-maps and bubble charts that break down the results for each dimension.

The remaining sections convey detailed findings and empower users to secure SAP systems against cyber threats by discovering and removing vulnerabilities, applying patches, and responding to alerts for suspected security breaches.

To learn more, contact Layer Seven Security. You can also request a free trial for security reporting with SAP Web Intelligence using Layer Seven’s cloud platform.

 

How to Comply with the DHS Recommendations for Securing SAP Systems from Cyber Attacks

In response to the dramatic rise of cyber attacks targeting ERP applications, the United States Department of Homeland Security (DHS) issued a warning earlier this year that encouraged organizations to respond to the risks targeted at their business applications by implementing specific measures to secure, patch and monitor SAP systems. The measures included scanning for vulnerabilities and missing security patches, managing SAP interfaces, and monitoring user behaviour, indicators of compromise, and compliance against security baselines for systems.

This article discusses how you can leverage SAP Solution Manager to comply with the DHS recommendations. Solution Manager is installed and available in most SAP landscapes and includes diagnostics and monitoring applications to support cybersecurity. The specific applications are outlined below against each of the DHS recommendations.

1. Scan systems for all known vulnerabilities, such as missing security patches and dangerous system configurations.

Configuration Validation in Solution Manager can perform automatic daily scans of SAP systems against security benchmarks to identify misconfigurations that could expose systems to cyber threats. The scans are performed against snapshots of systems stored in the Configuration and Change Database (CCDB). The results of the scans are stored in an internal Business Warehouse (BW). Service Level Reports and Security Dashboards connect to BW using BEx queries to read the results of the security scans and report the findings.

System Recommendations (SysRec) in Solution Manager connects directly to SAP Support to discover missing security patches.  SysRec also connects to each system in an SAP landscape to determine the current patch level. It reads the system information in the Landscape and Management Database (LMDB) to identify installed software components and versions. SysRec also integrates with the ABAP Call Monitor, Usage Procedure Logging, and Solution Documentation to perform change impact analysis for security patches.

2. Identify and analyze the security settings of SAP interfaces between systems and applications to understand risks posed by these trust relationships.

Interface and Connection Monitoring (ICMon) in Solution Manager automatically maps cross-system interfaces including RFC, HTTP, IDOC and Web Services. This includes internal and external connections. It also monitors real-time traffic patterns to detect and alert for malicious actions including dangerous RFM and URL executions.

3. Analyze systems for malicious or excessive user authorizations.

Solution Manager can detect users with administrative privileges in SAP systems. It flags users with privileged authorizations, profiles, roles, transactions, Java permissions, and HANA system and table privileges. Privileges can include standard and custom objects.

4. Monitor systems for indicators of compromise resulting from the exploitation of vulnerabilities.

The Monitoring and Alerting Infrastructure (MAI) in Solution Manager can monitor event logs in SAP systems to detect and alert for indicators of compromise (IOCs). This includes log files and tables such as the Security Audit Log, HTTP Log, System Log, Gateway Server Log, Change Document Log, Read Access Log, Java Security Log, HANA Audit Log, and the SAProuter Log. The MAI triggers alerts and email and text notifications for IOCs. Guided procedures provide a framework for incident response and tracking.

5. Monitor systems for suspicious user behavior, including both privileged and non-privileged users.

MAI monitors user logs to detect and alert for suspicious behavior covering both privileged and non-privileged users. This includes unauthorized access, escalation of privileges and actions that could lead to data leakage.

6. Apply threat intelligence on new vulnerabilities to improve the security posture against advanced targeted attacks.

SAP Partners periodically update content for Solution Manager to address new vulnerabilities and attack vectors.

7. Define comprehensive security baselines for systems and continuously monitor for compliance violations and remediate detected deviations.

Solution Manager continuously monitors for policy violations against security baselines and compliance frameworks such as GDPR, IT-SOX, NIST and PCI-DSS. Service Level Reports and Dashboards provide directions for implementing and tracking remedial actions taken to patch and secure systems. Guided procedures document incident investigation steps performed by responders. The results are archived in Solution Manager.

To learn more about how Solution Manager can help you comply with the DHS recommendations for securing SAP systems, contact Layer Seven Security.

Top Five Tips for System Recommendations

System Recommendations in SAP Solution Manager connects directly to SAP Support for real-time patch updates. It also connects to each system within SAP landscapes to monitor patch levels. SysRec downloads corrections for security vulnerabilities from SAP Support to each system and integrates with other areas in Solution Manager for change impact analysis, change management, and test management. SAP customers can therefore discover unapplied patches, bundle patches into change requests, and plan and execute test plans for patch cycles from a single integrated platform.

This article provides suggestions for optimizing System Recommendations to improve the performance of the application and the user experience. The tips will enable you to minimize false positives, identify and troubleshoot errors, and personalize the user interface.

System Recommendations reads the Landscape Management Database (LMDB) to determine the version and support pack levels for installed software components in each system. Therefore, the LMDB should be configured correctly, regularly updated and synchronized with the System Landscape Directory (SLD). This will reduce the likelihood of false positives such as the display of notes for irrelevant components, databases and operating systems. Kernel registration in the SLD will also help to minimize false positives. Alternatively, irrelevant components can be set to inactive in the customizing table AGSSR_OSDB to exclude them from the results returned by SysRec.

The background job SM:SYSTEM RECOMMENDATIONS periodically updates System Recommendations by connecting to SAP support and to managed systems to calculate unapplied notes. Processing errors for the object ASG_SR should be monitored using the Application Log (transaction SLG1). Alerts for job errors including automatic email notifications should be configured using Business Process Monitoring (BPMon) in Solution Manager.

System Recommendations excludes notes that are irrelevant, postponed or discontinued.  Therefore, it displays results for notes that have the implementation status New or New version available. Since the available status options don’t include options for notes with manual corrections that have been implemented, a custom status option for such notes should be configured by maintaining table AGSSR_STATUS. This can be performed using transaction SM30. Customers can also create custom status options to group notes by patch cycle, project or other criteria. In the example below, we’ve assigned a group of notes to the custom status group Q3 2018 and filtered the results to list the notes assigned to the group.

Status changes performed by users for notes are logged by System Recommendations. The changes are tracked in the details section for each note.  This section also tracks comments entered by users for notes. Comments are useful for tracking discussions between users that could impact implementation decisions including the approach, rationale, and timeline for applying security patches. Changes and comments entered by users can be viewed in table AGSSR_SYSNOTEC.

Finally, Fiori tiles can be configured in SysRec to create shortcuts for notes for specific systems, groups, and other variables. The tiles are accessed from the Fiori Launchpad and can be assigned to custom or standard groups. Once saved to the Launchpad, the results for each tile are automatically updated by System Recommendations.

SAP Solution Manager is ITIL-Certified for Information Security Management

The SAP Integration and Certification Center (ICC) has been validating and certifying solutions from partners and software vendors for over twenty years. The certifications provided by the ICC are based on rigorous testing and enable customers to invest with confidence in technologies that integrate with SAP solutions. This includes technologies that support security scenarios such as automated vulnerability management, code scanning and threat detection.

The ICC cannot certify SAP’s own product offerings since self-certification does not provide the same level of assurance as independent certification. However, SAP platforms are often certified by recognized certification authorities. SAP Solution Manager, for example, is certified by organizations such as SERVIEW. In fact, Solution Manager is one of the most awarded service management platforms in the market and certified for all 18 certifiable processes of the ITIL framework, including Information Security Management.

ITIL is the Information Technology Infrastructure Library and provides best practices to support the design, management and monitoring of IT infrastructure and optimization of service levels for end users. The framework consists of five distinct lifecycle phases for service strategy, design, transition, operations, and continuous improvement. It includes key performance indicators to identify problems, measure performance, and track progress.

IT Security Management is a process within the Service Design lifecycle of the most recent version of the ITIL framework. It includes four sub-processes for the design of security controls, the performance of regular security reviews, and the management of security incidents. The sub-processes are targeted at preventing, detecting and containing security intrusions and breaches. The chart below maps each sub-process to relevant applications available in SAP Solution Manager.

ITIL v3 – IT Security Management

Applications such as Configuration Validation, Service Level Reporting and the Dashboard Builder enable customers to enforce security baselines for SAP landscapes and monitor compliance against security KPIs. System Recommendations automatically detects missing security patches through a direct connection to SAP support. Interface Monitoring detects potential breaches of cross-system connections. Finally, the Monitoring and Alerting Infrastructure and Guided Procedures provide an advanced framework for detecting and responding to security incidents and suspected breaches. Overall, Solution Manager provides a powerful ITIL-compliant platform for defining, implementing and sustaining secure SAP system landscapes.

 

5 Common Myths for Security Monitoring with SAP Solution Manager

Does Solution Manager have a complex installation process? Is it difficult to maintain? Does it create dangerous connections with SAP systems? Is it a high value target for attackers? Does it provide no support for zero-day vulnerabilities?

This article tackles the five most common myths about SAP Solution Manager and reveals the truth behind the fiction.

The first and most common myth is that SAP Solution Manager is complex to install and difficult to maintain. In fact, the installation procedures for Solution Manager are relatively simple and standardized, especially in comparison to other SAP platforms such as ECC. Once installed, guided procedures in Solution Manager track the progress of the setup process across three major areas: System Preparation, Basic Configuration, and Managed System Configuration. Performing the configuration steps in Technical or Application Monitoring is recommended to enable the monitoring capabilities of Solution Manager.

Once configured, security-relevant applications such as System Recommendations, Dashboards, Interface Monitoring and the Monitoring and Alerting Infrastructure are enabled and ready to use. Therefore, the standard setup procedures automatically activate most of the requirements for security monitoring using Solution Manager. Since security applications use existing connections with SAP systems, there is no need to install and configure additional agents in target systems.

Maintenance is relatively straightforward. Support packs for functional enhancements and bug fixes are released at regular intervals and are applied using the Maintenance Optimizer. The guided procedures for SOLMAN_SETUP will flag any configuration issues that need to be tackled after an SP upgrade.

The second myth is that SAP Solution Manager creates dangerous RFC connections with managed systems. The RFC connections created by Solution Manager are no more or less dangerous than similar connections between other systems in SAP landscapes. Also, the risk is not removed if you decide not to perform security monitoring using SAP Solution Manager since the connections will remain in place.

The third myth is that SAP Solution Manager is a high-value target for attackers. In fact, all SAP systems are valuable targets for attackers. Since Solution Manager does not typically store or process sensitive business data, it may be a less valuable target than systems such as ECC, CRM and SRM. Also, Solution Manager performs self-monitoring to detect security vulnerabilities including misconfigurations and missing patches, and potential security breaches captured in SAP logs. In dual landscapes, Solution Manager systems can monitor each other.

Fourthly, it’s often emphasized that Solution Manager is not certified by SAP. SAP certifies third party solutions developed by independent software vendors for integration with platforms including SAP NetWeaver. SAP does not certify it’s own software platforms such as Solution Manager. However, Solution Manager is ITIL-certified by organizations such as SERVIEW for Information Security Management.

The final myth is that Solution Manager does not provide any coverage for zero-day vulnerabilities that are unpatched by SAP. Security researchers choose to deliver virtual patches for zero-day vulnerabilities through third party tools in order to induce SAP customers to subscribe to expensive licenses for such tools. This is a business decision and not due to any technical limitation in Solution Manager. Also, all zero-day vulnerabilities do not pose a critical risk to SAP systems. The fact that patches for vulnerabilities are often released many months after the weaknesses are disclosed by security researchers to SAP does not necessarily mean that SAP systems are at serious risk. SAP’s response to such disclosures depends on an assessment of the risk posed by reported vulnerabilities. This includes factors such as the complexity and range of related exploits and the impact to data confidentiality, integrity and availability.

Featured in SAPinsider: Secure Your SAP Landscapes with SAP Solution Manager 7.2

Firewalls, intrusion detection systems, and antivirus solutions may not protect SAP systems against advanced cyberattacks. However, this does not necessarily mean that SAP customers have to license third-party vulnerability scanning or threat detection solutions to deal with the risk. The answer to their security questions may be closer than they realize. Bundled with standard and enterprise SAP support agreements, SAP Solution Manager 7.2 includes five integrated applications to safeguard SAP systems against cyber threats:

Service Level Reporting (SLR)
Dashboard Builder
System Recommendations
Interface and Connection Monitoring (ICMon)
and the Monitoring and Alerting Infrastructure (MAI)

Read the full article

Equifax Data Breach: Attackers Exploited an Unapplied Security Patch, not a Zero-Day Vulnerability

On September 15, Equifax released a statement to confirm the initial attack vector that led to the compromise of personal information relating to 143 million consumers in the US, UK and Canada targeted an Apache Struts vulnerability within a web application that supports the organization’s online dispute portal. The patch for the vulnerability had been available since March but had not been applied by Equifax at the time the breach was detected on July 29. The patch was subsequently applied by Equifax but it was too late – the damage had been done.

Predictably, Equifax’s patching procedures have been cast into doubt with many questioning why the organization took four months to patch an external-facing web application that accessed large-volumes of sensitive information.  The doubts were evidently shared by the Board of Directors at Equifax: both the Chief Information Officer and the Chief Security Officer were forced out last week.

Fortunately, few SAP applications are impacted by the Apache Struts vulnerability addressed by CVE-2017-5638. Although many SAP products including Banking, BusinessObjects, and Sybase use the Apache framework, very few products use the Struts library within the framework.

However, SAP customers are strongly advised to review and revise their patching efforts in light of the breach. Despite concerns related to zero-day vulnerabilities, the root cause of the vast majority of breaches remains poor security practices rather than zero-day attacks. This includes ineffective patching procedures that open a wide window of opportunity for attackers to exploit known vulnerabilities before they are patched by organizations. This point was emphasized by a statement from Fortinet with the recent release of the company’s Global Threat Landscape Report. According to Fortinet, “Cybercriminals aren’t breaking into systems using new zero day attacks, they are primarily exploiting already discovered vulnerabilities”.

SAP customers can discover and apply security patches for SAP products using System Recommendations (SysRec). SysRec is an application within SAP Solution Manager that connects directly to SAP Support for real-time patch updates. It also connects directly to each system within SAP landscapes to monitor patch levels. SysRec downloads corrections for security vulnerabilities from SAP Support to each system. It also integrates with other areas in Solution Manager including Usage Logging and Solution Documentation for change impact analysis, Change Request Management (ChaRM) for managing changes, and Test Management for testing and deployment.