CVE-2021-27613 in Business One Chef Cookbook
Summary
by MITRE • 05/11/2021
Under certain conditions, SAP Business One Chef cookbook, version - 9.2, 9.3, 10.0, used to install SAP Business One, allows an attacker to exploit an insecure temporary folder for incoming & outgoing payroll data and to access information which would otherwise be restricted, which could lead to Information Disclosure and highly impact system confidentiality, integrity and availability.
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Analysis
by VulDB Data Team • 05/15/2021
The vulnerability identified as CVE-2021-27613 affects SAP Business One Chef cookbook versions 9.2, 9.3, and 10.0 which are utilized for installing SAP Business One software environments. This issue represents a critical security flaw that stems from improper handling of temporary file operations within the payroll data processing workflow. The vulnerability manifests when the system creates temporary folders to handle incoming and outgoing payroll data, creating an insecure temporary folder that can be exploited by unauthorized parties. The flaw falls under the category of insecure temporary file handling, which is classified as CWE-377, and specifically relates to CWE-378 which addresses the creation of temporary files with insecure permissions.
The technical exploitation of this vulnerability occurs when the SAP Business One Chef cookbook fails to properly secure temporary directories used for payroll data processing. Attackers can leverage this weakness to gain unauthorized access to sensitive payroll information that should remain restricted to authorized personnel only. The insecure temporary folder allows for information disclosure attacks where confidential employee data, salary information, and other payroll-related details can be accessed by malicious actors. This represents a severe compromise of system confidentiality as the vulnerability enables unauthorized data access without proper authentication or authorization mechanisms. The impact extends beyond mere information disclosure as the vulnerability can potentially affect system integrity by allowing modification of payroll data through manipulation of temporary files, and availability through potential denial of service scenarios when temporary files become corrupted or manipulated.
From an operational perspective, this vulnerability poses significant risks to organizations using SAP Business One for their enterprise resource planning needs. The payroll data handled by these systems contains highly sensitive personal and financial information that is subject to strict regulatory compliance requirements such as GDPR, HIPAA, and various local data protection laws. The exploitation of this vulnerability could result in substantial financial losses, regulatory penalties, and reputational damage to affected organizations. The attack surface is particularly concerning as it targets the installation and configuration phase of SAP Business One, potentially allowing attackers to establish persistent access or escalate privileges within the system. This vulnerability aligns with ATT&CK technique T1078 which covers Valid Accounts and T1566 which covers Phishing, as attackers might use this weakness to gain initial access and then move laterally within the network.
Organizations should immediately implement mitigations including updating to patched versions of the SAP Business One Chef cookbook, implementing proper temporary file permissions, and conducting thorough security reviews of all payroll-related configurations. The remediation process should include verifying that temporary directories are created with appropriate access controls and that sensitive data is properly encrypted both at rest and in transit. Additionally, network segmentation and monitoring should be enhanced to detect unauthorized access attempts to payroll data processing components. Security controls should be implemented to ensure that temporary folders are properly secured with restrictive permissions and that automatic cleanup mechanisms are in place to prevent long-term exposure of sensitive data. The vulnerability demonstrates the importance of proper temporary file management practices and highlights the need for comprehensive security testing of installation and configuration tools used in enterprise software deployments.