CVE-2019-0380 in Landscape Management
Summary
by MITRE
Under certain conditions, SAP Landscape Management enterprise edition, before version 3.0, allows custom secure parameters? default values to be part of the application logs leading to Information Disclosure.
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Analysis
by VulDB Data Team • 09/28/2020
SAP Landscape Management enterprise edition version 3.0 and earlier contains a critical information disclosure vulnerability that arises from improper handling of custom secure parameters within application logging mechanisms. This vulnerability specifically affects systems where custom parameters are configured with default values that may contain sensitive information, creating a potential attack vector for threat actors seeking to extract confidential data from system logs. The flaw exists in the logging subsystem where default parameter values are not properly sanitized before being written to log files, potentially exposing credentials, encryption keys, or other sensitive configuration data to unauthorized parties who can access these logs.
The technical implementation of this vulnerability stems from inadequate input validation and output sanitization within the logging framework of SAP Landscape Management. When custom secure parameters are defined with default values, the system fails to distinguish between legitimate configuration data and sensitive information that should remain protected. This issue is classified as a CWE-209 Information Exposure Through Logging, where the application's logging mechanism inadvertently reveals sensitive data through default parameter values that are written to log files without proper filtering. The vulnerability represents a failure in the principle of least privilege and data protection, as the system does not adequately protect sensitive parameters from being exposed in plaintext within log output.
The operational impact of this vulnerability extends beyond simple information disclosure, as it can provide attackers with critical information needed to escalate privileges or conduct further attacks against the SAP environment. Attackers who gain access to system logs can extract default parameter values that may contain passwords, API keys, or other authentication tokens, enabling them to impersonate legitimate users or gain unauthorized access to SAP systems. This vulnerability aligns with ATT&CK technique T1070.004, which involves the use of log files for information gathering, and can contribute to broader attack chains involving credential access and privilege escalation. Organizations using SAP Landscape Management before version 3.0 face significant risk of exposure, particularly in environments where log files are not properly secured or monitored for sensitive data.
Mitigation strategies for this vulnerability require immediate attention and include applying the official SAP security patches and updates released for SAP Landscape Management version 3.0 and later. System administrators should implement log file access controls and regular monitoring to detect unauthorized access to sensitive logs, while also configuring the logging subsystem to filter out sensitive parameter values before writing to log files. Organizations should conduct comprehensive vulnerability assessments to identify existing log files that may contain exposed sensitive data and implement proper log management practices including encryption of log files, access restriction controls, and regular log rotation procedures. The remediation process must also include reviewing and updating parameter configuration practices to ensure that default values for secure parameters are not inadvertently exposed through logging mechanisms, aligning with security best practices outlined in industry standards such as NIST SP 800-53 and ISO 27001.