CVE-2019-2779 in Siebel Core - Common Components
Summary
by MITRE
Vulnerability in the Siebel Core - Common Components component of Oracle Siebel CRM (subcomponent: Email). Supported versions that are affected are 19.0 and prior. Difficult to exploit vulnerability allows high privileged attacker with network access via HTTP to compromise Siebel Core - Common Components. Successful attacks require human interaction from a person other than the attacker. Successful attacks of this vulnerability can result in unauthorized access to critical data or complete access to all Siebel Core - Common Components accessible data. CVSS 3.0 Base Score 4.2 (Confidentiality impacts). CVSS Vector: (CVSS:3.0/AV:N/AC:H/PR:H/UI:R/S:U/C:H/I:N/A:N).
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Analysis
by VulDB Data Team • 07/07/2020
The vulnerability identified as CVE-2019-2779 resides within Oracle Siebel CRM's Core - Common Components, specifically within the Email subcomponent. This represents a significant security weakness that affects all versions up to and including 19.0, making it a widespread concern for organizations utilizing this enterprise customer relationship management platform. The vulnerability's classification as difficult to exploit indicates that while it requires specific conditions for successful exploitation, the potential impact on organizational security is substantial. The attack vector requires network access via HTTP, suggesting that threat actors could potentially leverage web-based attacks to target this weakness, though the complexity of the exploit necessitates certain prerequisites for successful compromise.
The technical nature of this vulnerability manifests as a privilege escalation issue within the Siebel Core - Common Components, where an attacker with high privileges can leverage network access to gain unauthorized access to sensitive data. The CVSS 3.0 base score of 4.2 reflects the moderate severity of the confidentiality impact, yet the potential for unauthorized access to critical data and complete access to all accessible data within the Siebel Core - Common Components creates a serious risk. The vulnerability's requirement for human interaction from a person other than the attacker suggests that social engineering or targeted phishing campaigns might be necessary to achieve successful exploitation, making it more challenging to weaponize but still potentially dangerous in the hands of determined adversaries.
The operational impact of this vulnerability extends beyond simple data exposure, as it can lead to complete compromise of the Siebel Core - Common Components accessible data, potentially affecting customer information, business processes, and organizational operations. Organizations relying on Siebel CRM for their customer relationship management activities face significant risks, particularly given that the vulnerability affects core components that likely handle sensitive business data and customer information. The requirement for human interaction, while providing some defense in depth, does not eliminate the threat entirely, as social engineering attacks can be highly effective in convincing individuals to perform actions that facilitate exploitation. This vulnerability directly relates to CWE-284, which addresses improper access control, and aligns with ATT&CK techniques involving privilege escalation and credential access.
Organizations should implement immediate mitigations including thorough network segmentation to limit access to Siebel CRM components, enhanced monitoring for unusual HTTP traffic patterns, and comprehensive user education programs to reduce the risk of social engineering attacks. The vulnerability's classification as requiring human interaction suggests that administrative controls and security awareness training should be prioritized alongside technical controls. Regular patch management and version updates should be implemented as the primary defense mechanism, given that this vulnerability affects versions 19.0 and prior. Additionally, implementing strict access controls and principle of least privilege configurations within the Siebel environment can help minimize the potential impact if exploitation occurs, while maintaining audit trails to detect any unauthorized access attempts.