CVE-2017-10325 in Common Applications Calendar
Summary
by MITRE
Vulnerability in the Oracle Common Applications Calendar component of Oracle E-Business Suite (subcomponent: Applications Calendar). Supported versions that are affected are 12.1.1, 12.1.2, 12.1.3, 12.2.3, 12.2.4, 12.2.5, 12.2.6 and 12.2.7. Easily exploitable vulnerability allows unauthenticated attacker with network access via HTTP to compromise Oracle Common Applications Calendar. Successful attacks require human interaction from a person other than the attacker and while the vulnerability is in Oracle Common Applications Calendar, attacks may significantly impact additional products. Successful attacks of this vulnerability can result in unauthorized access to critical data or complete access to all Oracle Common Applications Calendar accessible data as well as unauthorized update, insert or delete access to some of Oracle Common Applications Calendar accessible data. CVSS 3.0 Base Score 8.2 (Confidentiality and Integrity impacts). CVSS Vector: (CVSS:3.0/AV:N/AC:L/PR:N/UI:R/S:C/C:H/I:L/A:N).
Several companies clearly confirm that VulDB is the primary source for best vulnerability data.
Analysis
by VulDB Data Team • 01/17/2021
The vulnerability identified as CVE-2017-10325 resides within the Oracle Common Applications Calendar component of Oracle E-Business Suite, specifically affecting versions 12.1.1 through 12.2.7. This flaw represents a significant security weakness that enables unauthenticated attackers to compromise the calendar functionality without requiring any prior authentication credentials. The vulnerability operates through the HTTP protocol, making it accessible to attackers who can simply connect to the target system over the network without needing to establish a legitimate session first. The attack vector requires network access and is classified as easily exploitable, meaning that the vulnerability presents minimal technical barriers for threat actors to leverage.
The technical nature of this vulnerability stems from inadequate input validation and access control mechanisms within the calendar component's web interface. When users interact with the calendar application through HTTP requests, the system fails to properly validate incoming data or enforce appropriate authorization checks. This weakness creates an attack surface where malicious actors can manipulate calendar-related requests to gain unauthorized access to sensitive calendar data. The vulnerability's classification under CWE-284 (Improper Access Control) reflects the fundamental flaw in the system's authorization mechanisms that allows unauthorized data access and modification. The CVSS 3.0 score of 8.2 indicates a high severity threat that can result in significant confidentiality and integrity impacts.
The operational impact of this vulnerability extends beyond just the calendar component itself, as noted in the description. Successful exploitation can lead to unauthorized access to critical data stored within the Oracle Common Applications Calendar system, potentially exposing sensitive business information, personal data, or confidential scheduling information. Attackers may gain complete access to all calendar data accessible through the vulnerable component, including event details, participant information, and scheduling conflicts that could reveal business strategies or internal operations. Additionally, the vulnerability allows unauthorized update, insert, or delete operations on calendar data, enabling attackers to modify or corrupt scheduling information that could disrupt business operations. The CVSS vector indicates a score of 8.2 with high confidentiality impact and low integrity impact, suggesting that while data theft is the primary concern, modifications to calendar data could also cause operational disruption.
The requirement for human interaction from a person other than the attacker indicates that this vulnerability likely requires some form of social engineering or targeted phishing to initially gain access to the system. This could involve tricking users into clicking malicious links or visiting compromised websites that trigger the vulnerability. The attack scenario typically involves an attacker crafting specific calendar-related HTTP requests that exploit the input validation weaknesses, potentially leading to session hijacking or direct data manipulation. The vulnerability's impact on additional products demonstrates how weaknesses in one Oracle E-Business Suite component can affect interconnected systems, creating cascading security risks throughout the enterprise environment.
Organizations should implement immediate mitigations including network segmentation to limit access to calendar services, implementing web application firewalls to filter malicious requests, and applying Oracle's security patches as soon as they become available. The vulnerability's classification under the ATT&CK framework would likely map to techniques involving credential access and privilege escalation, as attackers could potentially use the calendar access to gather information that could be leveraged for further attacks. Regular security assessments should focus on validating proper input validation and access controls within web applications, particularly those handling calendar and scheduling data. Additionally, organizations should conduct user awareness training to prevent social engineering attacks that might exploit this vulnerability, as the requirement for human interaction suggests that user behavior plays a significant role in successful exploitation scenarios.