CVE-2023-30948 in Foundry Comments
Summary
by MITRE • 06/06/2023
A security defect in Foundry's Comments functionality resulted in the retrieval of attachments to comments not being gated by additional authorization checks. This could enable an authenticated user to inject a prior discovered attachment UUID into other arbitrary comments to discover it's content.
This defect was fixed in Foundry Comments 2.249.0, and a patch was rolled out to affected Foundry environments. No further intervention is required at this time.
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Analysis
by VulDB Data Team • 06/06/2023
The vulnerability identified as CVE-2023-30948 represents a critical authorization flaw within Foundry's Comments functionality that undermines the system's access control mechanisms. This security defect specifically affects how the platform handles attachment retrieval for comments, creating a scenario where authenticated users can exploit the system's permission model to access unauthorized content. The flaw stems from insufficient authorization checks during the attachment retrieval process, allowing malicious actors to leverage previously discovered attachment identifiers to gain access to content they should not be able to view.
The technical implementation of this vulnerability demonstrates a classic case of inadequate access control validation, where the system fails to properly verify user permissions when retrieving attachments associated with comments. This type of flaw typically falls under CWE-285, which addresses improper authorization in software systems, and aligns with ATT&CK technique T1078.004 for valid accounts and T1566.001 for spearphishing attachments. The vulnerability exists because the system does not perform additional authorization checks when retrieving attachments, meaning that once an attachment UUID is known through prior discovery, any authenticated user can attempt to access it regardless of whether they should have permission to view that specific content.
The operational impact of this vulnerability extends beyond simple data exposure, as it enables a form of privilege escalation through information discovery. An authenticated user who discovers an attachment UUID through legitimate means or other vulnerabilities can then attempt to access that attachment within any comment context, effectively bypassing the intended access controls. This creates a significant risk for organizations using Foundry's platform, particularly in environments where sensitive or proprietary information is shared through comments and attachments. The flaw essentially allows for unauthorized content enumeration and access, potentially exposing confidential data that should be restricted to specific user groups or roles.
Organizations utilizing Foundry's platform should consider implementing additional monitoring and logging of attachment access patterns to detect potential exploitation attempts. The vulnerability was addressed through a patch release in Foundry Comments version 2.249.0, which introduced proper authorization checks for attachment retrieval. This fix aligns with security best practices outlined in the OWASP Top Ten and NIST Cybersecurity Framework, specifically addressing the principle of least privilege and proper access control enforcement. The patch demonstrates the importance of maintaining current security updates and the necessity of thorough testing of access control mechanisms, particularly in collaborative platforms where users may have varying levels of authorization. No further intervention is required at this time as the patch has been rolled out to affected environments, but organizations should verify their systems have been updated to ensure complete protection against this specific vulnerability.