CVE-2014-5507 in iBackup
Summary
by MITRE
iBackup 10.0.0.32 and earlier uses weak permissions (Everyone: Full Control) for ib_service.exe, which allows local users to gain privileges via a Trojan horse file.
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Analysis
by VulDB Data Team • 12/15/2024
The vulnerability identified as CVE-2014-5507 affects iBackup software version 10.0.0.32 and earlier, presenting a critical security flaw through improper file permissions. This issue stems from the application's service executable file ib_service.exe being configured with excessively permissive access controls that grant full control permissions to the Everyone group. The fundamental technical flaw lies in the service's design where default security settings fail to implement proper access control mechanisms, creating an exploitable condition that directly violates security best practices. This misconfiguration allows any local user to manipulate the service executable through malicious file substitution, effectively enabling privilege escalation attacks.
The operational impact of this vulnerability extends beyond simple unauthorized access, as it creates a persistent backdoor for attackers to elevate their privileges within the system. When local users can manipulate ib_service.exe with full control permissions, they can replace the legitimate executable with a malicious Trojan horse file that executes with elevated privileges. This scenario represents a classic privilege escalation vulnerability that aligns with CWE-276, which specifically addresses improper file permissions and inadequate access control. The attack vector is particularly concerning because it requires minimal sophistication from threat actors, as the vulnerability exists in the default installation configuration without requiring additional exploitation techniques.
From a cybersecurity perspective, this vulnerability demonstrates the critical importance of proper access control implementation and the principle of least privilege. The flaw enables attackers to bypass normal security boundaries through simple file replacement techniques, which can be executed through various methods including social engineering or direct system access. The ATT&CK framework categorizes this type of vulnerability under privilege escalation techniques, specifically targeting the use of service execution and file permission manipulation to gain elevated system access. Organizations running affected versions of iBackup face significant risk of persistent malware installation and unauthorized system compromise.
Mitigation strategies for CVE-2014-5507 require immediate remediation through proper file permission configuration and software updates. System administrators should immediately modify the permissions on ib_service.exe to restrict access to only authorized users and services, implementing the principle of least privilege as defined in cybersecurity standards. The recommended approach involves removing the Everyone group from the file's access control list and ensuring that only system administrators and necessary service accounts maintain access. Additionally, organizations should implement regular security audits to identify and remediate similar permission misconfigurations across their infrastructure. Software vendors should address this issue through immediate patch releases and ensure that future versions properly implement secure default configurations that prevent such vulnerabilities from occurring in the first place.