CVE-2007-4501 in SSHKeychain
Summary
by MITRE
Unspecified vulnerability in PassphraseRequester in SSHKeychain before 0.8.2 beta allows attackers to obtain sensitive information (passwords) via unknown vectors, related to "poor protection."
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Analysis
by VulDB Data Team • 09/07/2018
The vulnerability identified as CVE-2007-4501 resides within the SSHKeychain software library, specifically within the PassphraseRequester component that handles password entry for SSH key management. This issue affects versions prior to 0.8.2 beta and represents a critical security flaw that undermines the fundamental security assumptions of password handling within SSH key management systems. The vulnerability's classification as "unspecified" suggests that the exact technical mechanism enabling information disclosure remains partially obscured, though the implications for security are severe enough to warrant immediate attention.
The core technical flaw involves inadequate protection mechanisms within the PassphraseRequester module, which fails to properly secure sensitive password information during the authentication process. This poor protection allows attackers to potentially intercept or extract passwords through unspecified attack vectors that exploit weaknesses in the software's memory handling, input validation, or encryption mechanisms. The vulnerability essentially creates a window of opportunity where sensitive authentication data becomes exposed to unauthorized parties, fundamentally compromising the security of SSH key-based authentication systems.
From an operational impact perspective, this vulnerability poses significant risks to organizations relying on SSH keychain management systems for secure remote access and authentication. Attackers who successfully exploit this weakness can gain access to passwords used for SSH key decryption, potentially enabling them to access protected systems, escalate privileges, or conduct further reconnaissance activities. The vulnerability's nature suggests it may be particularly dangerous in environments where multiple SSH keys are managed, as a single compromised password could potentially unlock access to multiple systems or resources. This makes the vulnerability especially concerning for enterprise environments where SSH key management is critical for secure infrastructure access.
The security implications extend beyond simple password disclosure, as this vulnerability aligns with several cybersecurity attack patterns documented in the MITRE ATT&CK framework under credential access and privilege escalation techniques. The poor protection mechanisms may enable adversaries to leverage this vulnerability as part of broader attack chains, potentially leading to persistent access or lateral movement within networks. Organizations should consider this vulnerability as potentially enabling more sophisticated attacks when combined with other security weaknesses.
Mitigation strategies should prioritize immediate software updates to versions 0.8.2 beta or later where the vulnerability has been addressed. Additionally, organizations should implement monitoring for unusual authentication patterns or access attempts that might indicate exploitation of this vulnerability. Security teams should conduct comprehensive assessments of all SSH key management systems to identify potential exposure, while also reviewing network access controls to limit potential damage from any successful exploitation. The vulnerability's nature suggests that temporary workarounds may include implementing additional authentication layers or restricting access to systems managed through affected SSH keychain implementations.