CVE-2007-4550 in ALPass
Summary
by MITRE
Format string vulnerability in ALPass 2.7 English and 3.02 Korean might allow user-assisted remote attackers to execute arbitrary code via format string specifiers in an fnm field in a folder-name record in an ALPASS DB (APW) file.
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Analysis
by VulDB Data Team • 09/07/2018
The vulnerability identified as CVE-2007-4550 represents a critical format string vulnerability within ALPass password management software versions 2.7 English and 3.02 Korean. This flaw resides in the handling of folder-name records within ALPASS Database (APW) files, specifically in the fnm field of folder-name records. The vulnerability stems from improper input validation and processing of user-supplied data that contains format string specifiers, creating a pathway for malicious code execution. The issue manifests when the application processes folder names without adequate sanitization, allowing attackers to inject format specifiers that can be exploited during string formatting operations.
This vulnerability operates under the Common Weakness Enumeration CWE-134 category, which specifically addresses weaknesses related to format string vulnerabilities. The flaw enables user-assisted remote code execution, meaning that an attacker can craft malicious APW files containing specially formatted fnm fields that, when processed by the vulnerable ALPass application, trigger the format string vulnerability. The attack vector requires the victim to open or process a maliciously crafted APW file, making this a user interaction-dependent exploit that aligns with the ATT&CK technique T1203 for legitimate program exploitation. The vulnerability's impact extends beyond simple code execution to potentially allow full system compromise when the application processes the malicious input.
The operational impact of CVE-2007-4550 is significant for organizations relying on ALPass for password management, as it creates an attack surface where adversaries can gain unauthorized code execution privileges. When exploited, the vulnerability allows attackers to execute arbitrary commands with the privileges of the ALPass application process, potentially leading to complete system compromise. The vulnerability affects both English and Korean localized versions of the software, indicating a widespread impact across different language implementations. The threat model suggests that this vulnerability could be exploited through social engineering campaigns where users are tricked into opening malicious APW files, making it particularly dangerous in environments where users may encounter untrusted password database files.
Mitigation strategies for CVE-2007-4550 should prioritize immediate software updates to patched versions of ALPass that address the format string vulnerability in the fnm field processing. Organizations should implement strict file validation policies that prevent processing of untrusted APW files, particularly those from unknown or unverified sources. Network segmentation and access controls should be enforced to limit exposure of systems running vulnerable ALPass versions. Additionally, security awareness training for users should emphasize the dangers of opening untrusted password database files and the importance of verifying file sources before processing. The vulnerability also highlights the importance of input validation and proper string formatting practices in software development, with recommendations to use secure string formatting functions that prevent format string injection attacks. Organizations should conduct comprehensive vulnerability assessments to identify all instances of vulnerable ALPass installations and ensure complete remediation through patching or software replacement, as the vulnerability represents a persistent risk that could be exploited by attackers with minimal user interaction requirements.