CVE-2010-2347 in Server Core
Summary
by MITRE
The Telnet interface in the SAP J2EE Engine Core (SAP-JEECOR) 6.40 through 7.02, and Server Core (SERVERCORE) 7.10 through 7.30 allows remote authenticated users to bypass a security check and conduct SMB relay attacks via unspecified vectors.
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Analysis
by VulDB Data Team • 12/31/2017
The vulnerability identified as CVE-2010-2347 represents a critical security flaw in SAP's J2EE Engine Core and Server Core components that affects versions ranging from 6.40 through 7.02 for SAP-JEECOR and 7.10 through 7.30 for SERVERCORE. This vulnerability resides within the Telnet interface implementation and constitutes a significant bypass of security controls that could enable malicious actors to escalate their privileges and execute unauthorized network operations. The flaw specifically allows authenticated users to circumvent intended security checks, creating an avenue for sophisticated attack techniques that exploit trust relationships within network infrastructures.
The technical nature of this vulnerability stems from improper validation mechanisms within the Telnet service implementation that fails to properly authenticate and authorize user requests before permitting access to underlying system resources. This security bypass enables attackers who have already established authentication credentials to manipulate the system's trust model and potentially leverage the compromised Telnet interface to relay SMB authentication requests to other network services. The unspecified vectors suggest that the vulnerability could be exploited through multiple pathways within the Telnet service architecture, making it particularly challenging to defend against through traditional perimeter security measures.
The operational impact of this vulnerability extends beyond simple unauthorized access, as it enables attackers to conduct SMB relay attacks that can compromise entire network infrastructures. When exploited, this vulnerability allows authenticated users to manipulate the authentication flow and potentially gain access to systems that would normally be protected by SMB authentication mechanisms. The attack surface is particularly concerning in enterprise environments where SAP systems often serve as central points of integration and where network trust relationships are heavily relied upon for security controls. This vulnerability directly violates the principle of least privilege and can result in unauthorized data access, system compromise, and potential lateral movement within network environments.
Organizations affected by this vulnerability should implement immediate mitigations including disabling Telnet interfaces where possible, implementing network segmentation to isolate SAP systems, and applying available patches from SAP to address the specific authentication bypass mechanisms. The vulnerability aligns with CWE-284, which addresses improper access control, and maps to ATT&CK technique T1550.003 for use of valid accounts and T1071.004 for application layer protocol. Security teams should also consider implementing network monitoring to detect unusual Telnet traffic patterns and SMB relay attempts, as well as conducting comprehensive vulnerability assessments to identify other potential trust relationship exploitation vectors. The remediation process requires careful consideration of SAP system dependencies and business continuity requirements while ensuring that all affected components receive proper patching and configuration updates.