CVE-2017-3545 in WebCenter Sites
Summary
by MITRE
Vulnerability in the Oracle WebCenter Sites component of Oracle Fusion Middleware (subcomponent: Blob Server). Supported versions that are affected are 11.1.1.8.0, 12.2.1.0.0, 12.2.1.1.0 and 12.2.1.2.0. Easily "exploitable" vulnerability allows unauthenticated attacker with network access via HTTP to compromise Oracle WebCenter Sites. Successful attacks of this vulnerability can result in unauthorized creation, deletion or modification access to critical data or all Oracle WebCenter Sites accessible data as well as unauthorized read access to a subset of Oracle WebCenter Sites 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:N/S:U/C:L/I:H/A:N).
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Analysis
by VulDB Data Team • 12/01/2022
The vulnerability identified as CVE-2017-3545 resides within Oracle WebCenter Sites component of Oracle Fusion Middleware, specifically within the Blob Server subcomponent. This critical security flaw affects multiple supported versions including 11.1.1.8.0, 12.2.1.0.0, 12.2.1.1.0, and 12.2.1.2.0, making it a widespread concern across various Oracle Fusion Middleware deployments. The vulnerability's classification as easily exploitable indicates that attackers require minimal technical expertise to leverage this weakness, significantly increasing the potential attack surface and risk exposure for affected organizations.
The technical nature of this vulnerability stems from insufficient authentication mechanisms within the Blob Server component, allowing unauthenticated attackers to establish network connections via HTTP protocols. This fundamental flaw in the authentication framework creates a pathway for malicious actors to bypass normal access controls and directly interact with the WebCenter Sites system. The vulnerability's CVSS 3.0 base score of 8.2 reflects the severity of potential impacts, with high integrity impact and moderate confidentiality impact, indicating that attackers can modify or delete critical system data while also gaining read access to sensitive information.
Operationally, successful exploitation of this vulnerability can lead to severe consequences for organizations utilizing affected Oracle WebCenter Sites implementations. Attackers can gain unauthorized access to create, delete, or modify critical data within the system, potentially compromising entire content repositories and database structures. Additionally, the unauthorized read access capability allows attackers to extract sensitive information from the WebCenter Sites accessible data, which may include confidential business information, intellectual property, or personal data depending on the organization's content management practices. The unauthenticated nature of the attack means that organizations cannot rely on standard authentication controls to prevent exploitation, making this vulnerability particularly dangerous.
The vulnerability aligns with CWE-287, which addresses improper authentication issues, and maps to ATT&CK technique T1190, representing the exploitation of remote services through HTTP protocols. Organizations should implement immediate mitigations including network-level restrictions such as firewall rules to limit access to the affected Blob Server component, disabling unnecessary HTTP services, and applying Oracle's official security patches. Additionally, implementing network segmentation, monitoring for unusual HTTP traffic patterns, and conducting regular vulnerability assessments can help reduce the risk of exploitation. The CVSS vector (CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:H/A:N) indicates that this vulnerability can be exploited remotely without user interaction, making it particularly attractive to automated attack tools and increasing the urgency for remediation across affected deployments.