CVE-2010-4591 in Lotus Mobile Connect
Summary
by MITRE
The Connection Manager in IBM Lotus Mobile Connect (LMC) before 6.1.4, when HTTP Access Services (HTTP-AS) is enabled, does not delete LTPA tokens in response to use of the iNotes Logoff button, which might allow physically proximate attackers to obtain access via an unattended client, related to a cookie domain mismatch.
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Analysis
by VulDB Data Team • 01/08/2018
The vulnerability described in CVE-2010-4591 affects IBM Lotus Mobile Connect version 6.1.4 and earlier, specifically when HTTP Access Services is enabled. This issue represents a critical session management flaw that undermines the security of mobile email and collaboration services. The vulnerability stems from improper handling of authentication tokens during the logout process, creating a persistent security risk for users who access their email through mobile devices.
The technical flaw involves the Connection Manager component failing to properly invalidate Lightweight Third Party Authentication (LTPA) tokens when users click the iNotes Logoff button. LTPA tokens are critical authentication mechanisms used by IBM Domino servers to maintain user sessions across multiple applications and services. When these tokens are not properly cleared from the client device, they remain accessible to unauthorized parties who gain physical access to the device. The vulnerability is particularly concerning because it creates a cookie domain mismatch that prevents the proper deletion of authentication cookies, leaving users vulnerable to session hijacking attacks.
This vulnerability has significant operational impact for organizations relying on IBM Lotus Mobile Connect for mobile email access. The issue enables what security researchers categorize as a "session fixation" or "token persistence" attack vector, where attackers can exploit the unclean logout process to gain unauthorized access to user email accounts. The risk is amplified by the fact that the vulnerability specifically targets unattended client devices, making it particularly dangerous in environments where mobile devices are frequently left unattended in public or shared spaces. Organizations using this software face potential data breaches, unauthorized access to sensitive email communications, and possible compromise of corporate email infrastructure.
The security implications of this vulnerability align with CWE-200, which addresses "Information Exposure," and CWE-384, which covers "Session Management Flaws." From an ATT&CK framework perspective, this vulnerability maps to T1531 for "Account Access Removal" and T1566 for "Phishing," as attackers can leverage the persistent tokens to impersonate legitimate users. The vulnerability also demonstrates characteristics of T1078 which involves legitimate credentials use, as the attackers can exploit the authentication mechanism rather than bypassing it entirely. Organizations should implement immediate mitigations including upgrading to IBM Lotus Mobile Connect 6.1.4 or later, disabling HTTP Access Services when not required, and implementing additional device security measures such as automatic screen lock timeouts and encrypted storage. Security teams should also conduct comprehensive audits of mobile device access policies and ensure proper user education regarding secure device handling practices.