CVE-2017-3527 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 and 8.55. Easily "exploitable" vulnerability allows unauthenticated 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 5.3 (Confidentiality impacts). CVSS Vector: (CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:N/A:N).
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Analysis
by VulDB Data Team • 12/19/2020
The CVE-2017-3527 vulnerability represents a critical security flaw within Oracle PeopleSoft Enterprise PeopleTools, specifically affecting the Fluid Core subcomponent. This vulnerability exists in PeopleTools versions 8.54 and 8.55, which are widely deployed in enterprise environments for human capital management and business process automation. The flaw resides in the web service implementation that handles HTTP requests, creating an avenue for unauthorized access to sensitive enterprise data. The vulnerability's classification as easily exploitable indicates that attackers can leverage it without requiring specialized skills or privileged access, making it particularly dangerous in production environments where PeopleSoft systems process confidential business and employee information.
The technical nature of this vulnerability stems from insufficient input validation and access control mechanisms within the Fluid Core component. Attackers can exploit this weakness by sending specially crafted HTTP requests to the affected PeopleSoft servers, bypassing normal authentication and authorization checks. The vulnerability specifically impacts the confidentiality aspect of the CIA triad, allowing attackers to perform unauthorized read operations against a subset of accessible PeopleSoft data. The CVSS 3.0 score of 5.3 reflects the moderate severity impact, considering that while the attack requires network access and is not automatically exploitable, it does not require authentication or user interaction. This vulnerability aligns with CWE-284, which addresses improper access control in software systems, and demonstrates how inadequate privilege enforcement can lead to data exposure in enterprise applications.
The operational impact of this vulnerability extends beyond simple data theft, as it can compromise sensitive employee records, financial data, and business intelligence stored within PeopleSoft systems. Organizations utilizing PeopleTools 8.54 and 8.55 are particularly at risk since these versions lack proper input sanitization for HTTP service endpoints. The unauthenticated nature of the attack means that even network-level security controls like firewalls may not prevent exploitation, as the vulnerability exists at the application layer. This weakness can enable attackers to gather intelligence about organizational structure, employee information, and business processes that could be used for further attacks or competitive advantage. The vulnerability's impact is particularly concerning in regulated industries where compliance with data protection requirements is mandatory, as unauthorized data access could result in significant regulatory penalties and reputational damage.
Organizations should implement immediate mitigations including applying Oracle's security patches and updates specifically addressing CVE-2017-3527, which would resolve the input validation and access control issues within the Fluid Core component. Network segmentation strategies should be employed to limit access to PeopleSoft servers, restricting HTTP access to authorized networks and systems only. Additionally, implementing web application firewalls and monitoring for suspicious HTTP traffic patterns can help detect exploitation attempts. Security teams should conduct comprehensive assessments of their PeopleSoft environments to identify all instances running affected versions and ensure proper patch management processes are in place. The vulnerability also highlights the importance of regular security assessments and vulnerability management programs that can identify and remediate similar weaknesses before they can be exploited by malicious actors. Organizations should also consider implementing data loss prevention controls and access monitoring to detect unauthorized data access attempts that might indicate exploitation of this vulnerability.