CVE-2017-15086 in Gluster Storage
Summary
by MITRE
It was discovered that the fix for CVE-2017-12151 was not properly shipped in erratum RHSA-2017:2858 for Red Hat Gluster Storage 3.3 for RHEL 6.
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Analysis
by VulDB Data Team • 01/10/2023
The vulnerability identified as CVE-2017-15086 represents a critical oversight in the security patching process for Red Hat Gluster Storage 3.3 running on Red Hat Enterprise Linux 6 systems. This issue stems from an incomplete remediation effort for a previously identified vulnerability, specifically CVE-2017-12151, which demonstrates the importance of thorough validation during security update deployment. The problem manifests when administrators apply the erratum RHSA-2017:2858 expecting complete protection against the earlier vulnerability, only to discover that the fix implementation was flawed or incomplete. This creates a dangerous false sense of security where systems appear patched but remain vulnerable to the original attack vectors. The vulnerability falls under the category of incomplete patch deployment, which can be classified as CWE-1004, representing a weakness where security fixes are not properly implemented or tested before being released to production environments.
The technical flaw in this case involves a failure in the patch validation process where the security update for Red Hat Gluster Storage did not properly address the root cause of CVE-2017-12151. This type of vulnerability can be exploited by attackers who understand the specific nature of the original flaw and can craft attacks that bypass the incomplete remediation. The incomplete fix may leave system components in a vulnerable state, potentially allowing for privilege escalation, unauthorized data access, or denial of service conditions depending on the nature of the original vulnerability. From an operational standpoint, this vulnerability creates significant risk for organizations relying on Red Hat Gluster Storage as their primary storage solution, particularly in environments where data integrity and access control are paramount.
The operational impact of CVE-2017-15086 extends beyond simple security exposure to encompass potential business continuity risks and regulatory compliance issues. Organizations may face increased vulnerability to advanced persistent threats that specifically target storage infrastructure, as the incomplete patch leaves exploitable entry points that attackers can leverage. This situation particularly affects enterprises using Red Hat Gluster Storage in mission-critical applications where storage security is essential for maintaining data confidentiality and integrity. The vulnerability also demonstrates the importance of proper security update management and validation procedures, as it represents a failure in the security lifecycle that could have been prevented through better testing and quality assurance processes before patch deployment. From an attacker's perspective, this vulnerability aligns with tactics described in the MITRE ATT&CK framework under the 'Initial Access' and 'Persistence' phases, where incomplete patch management creates opportunities for unauthorized access and system compromise.
Organizations affected by CVE-2017-15086 should immediately implement comprehensive patch validation procedures and verify that all systems have received complete security updates. The recommended mitigation strategy involves applying the correct security patches from Red Hat, ensuring that the fix for CVE-2017-12151 has been properly implemented, and conducting thorough testing to validate that the vulnerability has been fully addressed. System administrators should also consider implementing additional monitoring and logging controls to detect potential exploitation attempts. The incident highlights the critical need for organizations to maintain robust security update governance processes, including pre-patch validation, rollback procedures, and comprehensive testing protocols to prevent similar issues from occurring in the future. Regular security assessments and vulnerability scanning should be conducted to identify any remaining gaps in security coverage that may have been introduced through incomplete patch deployments.