CVE-2018-2820 in PeopleSoft Enterprise PeopleTools
Summary
by MITRE
Vulnerability in the PeopleSoft Enterprise PeopleTools component of Oracle PeopleSoft Products (subcomponent: Fluid Core). Supported versions that are affected are 8.54, 8.55 and 8.56. Easily exploitable vulnerability allows low privileged attacker with network access via HTTP to compromise PeopleSoft Enterprise PeopleTools. Successful attacks of this vulnerability can result in unauthorized read access to a subset of PeopleSoft Enterprise PeopleTools accessible data. CVSS 3.0 Base Score 4.3 (Confidentiality impacts). CVSS Vector: (CVSS:3.0/AV:N/AC:L/PR:L/UI:N/S:U/C:L/I:N/A:N).
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Analysis
by VulDB Data Team • 03/02/2023
The vulnerability identified as CVE-2018-2820 resides within the PeopleSoft Enterprise PeopleTools component, specifically within the Fluid Core subcomponent of Oracle PeopleSoft products. This security flaw affects multiple supported versions including 8.54, 8.55, and 8.56, representing a significant exposure across a substantial portion of the PeopleSoft product ecosystem. The vulnerability operates at the intersection of web application security and enterprise resource planning systems, where the Fluid Core serves as a fundamental interface layer for modernizing user experiences within PeopleSoft applications. The affected component's role in facilitating web-based interactions makes it a critical attack surface for potential adversaries seeking to exploit weaknesses in enterprise business applications.
The technical nature of this vulnerability manifests as an access control flaw that permits low-privileged attackers to perform unauthorized data read operations through HTTP network connections. This represents a classic case of insufficient authorization checking within the application's security framework, where proper access controls fail to validate user permissions before granting data access. The vulnerability's classification as easily exploitable indicates that minimal technical expertise or resources are required to leverage this weakness, making it particularly dangerous in environments where network exposure is common. The attack vector operates through standard HTTP protocols, suggesting that the flaw exists within the web application's request handling or authentication validation mechanisms rather than requiring specialized tools or complex attack chains.
From an operational impact perspective, this vulnerability creates a significant confidentiality risk for organizations utilizing affected PeopleSoft versions. The successful exploitation results in unauthorized read access to a subset of PeopleSoft Enterprise PeopleTools accessible data, which could include sensitive business information, employee records, financial data, or proprietary business processes. The CVSS 3.0 base score of 4.3 reflects the moderate severity of the impact, with particular emphasis on the confidentiality aspect as indicated by the C:L rating. The vulnerability's ability to affect data confidentiality without requiring modification or disruption of system operations means that attackers can silently extract valuable information without leaving obvious traces of their activities. Organizations with extensive PeopleSoft implementations may face substantial data exposure risks, particularly in industries where regulatory compliance for data protection is critical.
The security implications extend beyond immediate data theft to encompass potential downstream consequences including regulatory violations, competitive disadvantages, and reputational damage. This vulnerability aligns with CWE-284 (Improper Access Control) and represents a failure in the principle of least privilege enforcement within the application's security model. Organizations should consider implementing network segmentation and monitoring to detect unauthorized HTTP access patterns that might indicate exploitation attempts. The ATT&CK framework categorizes this vulnerability under privilege escalation and credential access tactics, where adversaries leverage weak access controls to gain unauthorized data access. Mitigation strategies should include immediate patch deployment for affected versions, network access controls to restrict HTTP access to authorized systems, and enhanced monitoring of application logs for suspicious read access patterns. Additionally, organizations should conduct comprehensive vulnerability assessments to identify similar access control weaknesses in other enterprise applications and establish robust incident response procedures to address potential exploitation attempts.