CVE-2008-1902 in aptlinex
Summary
by MITRE
The GUI for aptlinex before 0.91 does not sufficiently warn the user of potentially dangerous actions, which allows remote attackers to remove or modify packages via an apt:// URL.
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Analysis
by VulDB Data Team • 09/23/2018
The vulnerability identified as CVE-2008-1902 affects the graphical user interface component of aptlinex software versions prior to 0.91, representing a significant security flaw in package management systems. This issue stems from inadequate user interface design that fails to provide sufficient warnings when users attempt to perform potentially dangerous operations through the graphical interface. The vulnerability specifically manifests when users interact with apt:// URLs which are designed to handle package management operations within the graphical environment. These URLs can be crafted to initiate package removal or modification actions without proper user consent or awareness of the consequences, creating a dangerous attack surface that could be exploited by remote adversaries.
The technical flaw resides in the insufficient validation and warning mechanisms within the aptlinex GUI implementation. When a user clicks on an apt:// URL, the system should present clear, explicit warnings about the package operations that will be performed, including the specific packages targeted for modification or removal. However, the vulnerable versions of aptlinex fail to adequately inform users about the potentially destructive nature of these operations, allowing attackers to craft malicious URLs that could execute harmful package management commands without user knowledge or consent. This represents a classic case of inadequate input validation and user interface security design that directly violates fundamental security principles.
The operational impact of this vulnerability extends beyond simple privilege escalation to encompass full system compromise potential through package manipulation. Remote attackers can leverage this weakness to install malicious packages, remove critical system components, or modify existing packages to include backdoors or other malicious code. The vulnerability is particularly concerning because it operates entirely within the user's graphical environment, making detection more difficult and exploitation more likely to succeed. Users may unknowingly execute destructive operations simply by clicking on seemingly benign links or visiting compromised websites, leading to system instability, data loss, or complete system compromise depending on the packages targeted.
Security practitioners should note this vulnerability as aligning with CWE-693, which addresses protection mechanism failures, and it demonstrates characteristics consistent with ATT&CK technique T1068, which covers exploit for privilege escalation. The vulnerability also relates to CWE-20, which covers input validation issues, and CWE-352, which addresses cross-site request forgery. Organizations should implement immediate mitigations including updating to aptlinex version 0.91 or later, which includes enhanced warning mechanisms and improved user interface security controls. Additional protective measures should include network-level filtering of apt:// URL handlers, user education about the dangers of clicking untrusted links, and implementation of application whitelisting policies to prevent execution of unauthorized package management operations. System administrators should also monitor for suspicious package installation or removal activities that could indicate exploitation of this vulnerability.