CVE-2013-1608 in NetBackup Appliance
Summary
by MITRE
Directory traversal vulnerability in the Management Console on the Symantec NetBackup (NBU) appliance 2.0.x allows remote attackers to read arbitrary files via unspecified vectors.
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Analysis
by VulDB Data Team • 05/04/2018
The CVE-2013-1608 vulnerability represents a critical directory traversal flaw within the Symantec NetBackup appliance management console version 2.0.x. This vulnerability exposes the underlying system to unauthorized file access through remote exploitation, fundamentally compromising the security posture of backup infrastructure deployments. The issue stems from insufficient input validation mechanisms within the appliance's web interface, allowing malicious actors to manipulate file path references and gain access to sensitive system files that should remain restricted.
The technical implementation of this vulnerability leverages conventional directory traversal attack vectors where attacker-controlled input is processed without adequate sanitization or validation. When the management console processes user-supplied parameters containing directory traversal sequences such as ../ or ..\, the system fails to properly validate these inputs before accessing the file system. This design flaw enables attackers to navigate beyond the intended directory boundaries and access arbitrary files on the appliance's file system. The vulnerability specifically affects the appliance's web-based management interface, making it accessible over network connections and amplifying the potential impact of exploitation.
The operational impact of CVE-2013-1608 extends beyond simple unauthorized file access, as it provides attackers with the capability to extract sensitive information from the backup appliance. This includes potentially accessing configuration files that may contain authentication credentials, system keys, or backup job definitions that reveal organizational backup strategies and data structures. The vulnerability affects enterprise environments where Symantec NetBackup appliances are deployed for critical data protection, as successful exploitation could lead to complete compromise of backup infrastructure and potential data exfiltration from the organization's backup repositories.
Organizations utilizing Symantec NetBackup appliances version 2.0.x should implement immediate mitigations including applying the vendor-provided security patches and updates that address the directory traversal vulnerability. Network segmentation and access control measures should be enforced to limit exposure of the management console to trusted networks only. Additionally, monitoring and logging of management console access should be implemented to detect anomalous file access patterns that may indicate exploitation attempts. The vulnerability aligns with CWE-22 directory traversal weakness category and represents a significant risk under the attack chain framework, potentially enabling subsequent attacks such as privilege escalation or lateral movement within the network infrastructure.
Security professionals should consider this vulnerability as part of broader backup system security assessments, given that compromised backup appliances can serve as attack vectors for accessing sensitive organizational data. The remediation process requires careful planning to avoid disrupting backup operations while ensuring complete patch deployment across all affected appliance instances. Regular security assessments of backup infrastructure should include vulnerability scanning and penetration testing to identify similar weaknesses in other components of the backup ecosystem that may present analogous attack surfaces.