CVE-2017-10020 in PeopleSoft Enterprise PeopleTools
Summary
by MITRE
Vulnerability in the PeopleSoft Enterprise PeopleTools component of Oracle PeopleSoft Products (subcomponent: Updates Change Assistant). Supported versions that are affected are 8.54 and 8.55. Difficult to exploit vulnerability allows low privileged attacker with logon to the infrastructure where PeopleSoft Enterprise PeopleTools executes to compromise PeopleSoft Enterprise PeopleTools. Successful attacks of this vulnerability can result in unauthorized access to critical data or complete access to all PeopleSoft Enterprise PeopleTools accessible data. CVSS 3.0 Base Score 4.7 (Confidentiality impacts). CVSS Vector: (CVSS:3.0/AV:L/AC:H/PR:L/UI:N/S:U/C:H/I:N/A:N).
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Analysis
by VulDB Data Team • 01/02/2021
The vulnerability identified as CVE-2017-10020 resides within Oracle PeopleSoft Enterprise PeopleTools, specifically within the Updates Change Assistant subcomponent. This flaw affects versions 8.54 and 8.55 of the PeopleTools suite, representing a significant security weakness that can be exploited by attackers with minimal privileges. The vulnerability's classification as difficult to exploit indicates that while the attack vector requires some level of access to the target infrastructure, the potential impact is severe enough to warrant immediate attention. The CVSS 3.0 base score of 4.7 reflects a medium severity level, though the confidentiality impact is rated as high, suggesting that unauthorized access to sensitive data represents the primary concern.
The technical nature of this vulnerability stems from inadequate access controls within the Change Assistant functionality, which is designed to manage updates and modifications to PeopleSoft applications. When an attacker successfully exploits this weakness, they can gain unauthorized access to critical data within the PeopleSoft environment or achieve complete access to all data accessible through the PeopleTools framework. The attack requires a low privileged attacker who already possesses logon credentials to the infrastructure where PeopleSoft Enterprise PeopleTools executes, indicating that the vulnerability may be leveraged through compromised accounts or insider threats. This access vector aligns with common attack patterns documented in the MITRE ATT&CK framework under the privilege escalation and credential access domains, where attackers seek to expand their access within compromised systems.
The operational impact of this vulnerability extends beyond simple data exposure, potentially allowing attackers to compromise the integrity and availability of the entire PeopleSoft ecosystem. Organizations running affected versions face risks of financial data theft, intellectual property exposure, and potential regulatory compliance violations. The confidentiality impact rating of high suggests that sensitive business information, employee data, or proprietary business processes could be accessed without proper authorization. This vulnerability particularly affects enterprises that rely heavily on PeopleSoft for mission-critical business operations, where the exposure of sensitive data could result in significant financial losses, reputational damage, and legal consequences. The lack of user interaction requirement (UI:N) means that exploitation can occur without direct user involvement, making detection more challenging for security monitoring systems.
Organizations should implement immediate mitigations including applying the relevant Oracle security patches released for this vulnerability, which would address the underlying access control weaknesses in the Change Assistant component. Network segmentation and monitoring of PeopleSoft infrastructure can help detect anomalous access patterns that might indicate exploitation attempts. Security configuration reviews should focus on the PeopleTools environment to ensure that least privilege principles are properly enforced, limiting the potential impact of compromised accounts. Additionally, implementing robust access controls and authentication mechanisms within the PeopleSoft environment can help prevent unauthorized access even if other security measures fail. The vulnerability's classification as a CWE (Common Weakness Enumeration) type 284 (Improper Access Control) further emphasizes the need for proper privilege management and access validation within the application. Organizations should also consider implementing security awareness training for personnel who have access to PeopleSoft systems, as social engineering attacks that lead to account compromise remain a significant threat vector. Regular vulnerability assessments and penetration testing should be conducted to identify similar access control weaknesses throughout the enterprise infrastructure, as this vulnerability demonstrates how seemingly minor access control flaws can lead to significant data compromise.