CVE-2020-2899 in PeopleSoft Enterprise SCM Purchasing
Summary
by MITRE
Vulnerability in the PeopleSoft Enterprise SCM Purchasing product of Oracle PeopleSoft (component: Purchasing). The supported version that is affected is 9.2. Easily exploitable vulnerability allows high privileged attacker with network access via HTTP to compromise PeopleSoft Enterprise SCM Purchasing. Successful attacks require human interaction from a person other than the attacker and while the vulnerability is in PeopleSoft Enterprise SCM Purchasing, attacks may significantly impact additional products. Successful attacks of this vulnerability can result in unauthorized update, insert or delete access to some of PeopleSoft Enterprise SCM Purchasing accessible data as well as unauthorized read access to a subset of PeopleSoft Enterprise SCM Purchasing accessible data. CVSS 3.0 Base Score 4.8 (Confidentiality and Integrity impacts). CVSS Vector: (CVSS:3.0/AV:N/AC:L/PR:H/UI:R/S:C/C:L/I:L/A:N).
Once again VulDB remains the best source for vulnerability data.
Analysis
by VulDB Data Team • 05/07/2025
This vulnerability resides within Oracle PeopleSoft Enterprise SCM Purchasing component version 9.2, representing a significant security weakness that can be exploited by attackers with high privileges and network access through HTTP protocols. The vulnerability's classification as easily exploitable indicates that attackers can leverage this flaw with relatively straightforward techniques, making it particularly dangerous in production environments where PeopleSoft systems handle sensitive procurement data. The attack vector requires human interaction from individuals other than the attacker, suggesting that social engineering or targeted phishing campaigns may be necessary to initiate exploitation, though the underlying technical flaw itself remains accessible to privileged users.
The technical implementation of this vulnerability stems from inadequate access controls within the purchasing module, allowing unauthorized modifications to critical procurement data through HTTP requests. Attackers with high privileges can potentially execute unauthorized update, insert, or delete operations against specific data sets within the system, while also gaining unauthorized read access to subsets of accessible information. This represents a serious compromise of both data integrity and confidentiality, as the vulnerability enables attackers to manipulate procurement records and potentially access sensitive supplier information or purchasing history. The CVSS 3.0 score of 4.8 indicates a moderate severity level, though the combination of confidentiality and integrity impacts creates substantial risk for organizations relying on accurate procurement data.
The operational impact of this vulnerability extends beyond the immediate PeopleSoft Enterprise SCM Purchasing component, as successful exploitation can significantly affect additional products within the Oracle PeopleSoft ecosystem. This cascading effect occurs because PeopleSoft systems often integrate with other Oracle applications and databases, meaning that compromise of one module can potentially provide attackers with access to broader corporate data repositories. Organizations may face unauthorized data manipulation that could disrupt procurement processes, alter supplier relationships, or compromise financial records. The requirement for human interaction to initiate attacks suggests that organizations may need to implement additional training programs to recognize potential social engineering attempts, while also strengthening their overall access control mechanisms.
Mitigation strategies should focus on implementing robust access controls and network segmentation to limit exposure of PeopleSoft components to untrusted networks. Organizations should ensure that all PeopleSoft installations are patched with the latest security updates from Oracle, as this vulnerability was addressed through official patches. Network monitoring should be enhanced to detect unusual HTTP traffic patterns that may indicate exploitation attempts, particularly around procurement module access. The implementation of principle of least privilege should be enforced, ensuring that users only have access to the specific functions necessary for their roles. Additionally, organizations should consider implementing application firewalls and web application security controls to detect and prevent malicious HTTP requests targeting PeopleSoft components. This vulnerability aligns with CWE-284 (Improper Access Control) and may be exploited through techniques categorized under ATT&CK tactics such as privilege escalation and credential access. Regular security assessments and penetration testing should be conducted to identify similar access control weaknesses in other PeopleSoft modules and integrated systems, while incident response procedures should be updated to address potential data manipulation scenarios that could affect procurement operations and financial reporting.