CVE-2003-1183 in Files
Summary
by MITRE
The WebCache component in Oracle Files 9.0.3.1.0, 9.0.3.2.0, and 9.0.3.3.0 of Oracle Collaboration Suite Release 1 caches files despite the cacheability rules imposed by Oracle Files, which allows local users to gain access.
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Analysis
by VulDB Data Team • 06/15/2018
The vulnerability identified as CVE-2003-1183 resides within the WebCache component of Oracle Files 9.0.3.1.0, 9.0.3.2.0, and 9.0.3.3.0 versions of Oracle Collaboration Suite Release 1. This represents a critical security flaw that fundamentally undermines the intended access control mechanisms within the Oracle Files system. The issue manifests when the WebCache component fails to properly enforce cacheability rules that should govern file caching behavior, creating an unexpected pathway for unauthorized access to protected resources.
The technical flaw stems from the improper implementation of cache validation logic within the WebCache subsystem. When Oracle Files processes requests for cached content, it should respect the cacheability directives and access control policies that govern file availability. However, the vulnerable implementation allows cached files to be served regardless of these established rules, effectively bypassing the normal access control mechanisms that should prevent unauthorized users from accessing restricted content. This represents a classic case of insufficient access control enforcement where the caching layer operates outside the normal security boundaries.
The operational impact of this vulnerability is significant for organizations utilizing Oracle Collaboration Suite, as it creates a persistent security risk that can be exploited by local users who may not have legitimate access rights to specific files or directories. Attackers can leverage this flaw to retrieve cached copies of files that should be restricted, potentially accessing sensitive business information, proprietary data, or confidential documents. The vulnerability is particularly concerning because it operates at the caching layer, meaning that even files that have been properly secured through access controls can be retrieved through cached copies, undermining the effectiveness of the entire security architecture.
Local users who exploit this vulnerability can gain unauthorized access to cached content that would normally be protected by access controls, creating a potential data leakage scenario that could result in intellectual property theft, competitive disadvantage, or regulatory compliance violations. The vulnerability's persistence means that once cached, the compromised content remains accessible even after the original access restrictions are removed or modified, creating a long-term security risk. Organizations may face significant operational disruption if this vulnerability is exploited, as it could lead to unauthorized disclosure of sensitive information that was intended to be protected through the Oracle Files access control mechanisms.
The vulnerability aligns with CWE-284, which addresses inadequate access control or improper access control implementation, and can be mapped to ATT&CK technique T1078.004 for valid accounts, as the exploitation leverages local user privileges to access restricted resources through cache bypass mechanisms. Organizations should implement immediate mitigations including applying the relevant Oracle security patches, disabling unnecessary caching features, and reviewing access control policies to ensure proper enforcement. Additionally, monitoring systems should be enhanced to detect anomalous cache access patterns that could indicate exploitation attempts, while regular security assessments should verify that caching mechanisms properly enforce access controls and do not create unintended access pathways for unauthorized users.