CVE-2010-3202 in Flock
Summary
by MITRE
Cross-site scripting (XSS) vulnerability in Flock Browser 3.0.0.3989 allows remote attackers to inject arbitrary web script or HTML via a crafted bookmark.
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Analysis
by VulDB Data Team • 12/22/2024
The CVE-2010-3202 vulnerability represents a critical cross-site scripting flaw discovered in Flock Browser version 3.0.0.3989, which exposes users to significant security risks through malicious bookmark manipulation. This vulnerability falls under the CWE-79 category of Cross-Site Scripting, specifically classified as a client-side vulnerability that allows attackers to inject malicious code into web applications. The flaw manifests when the browser fails to properly sanitize or validate bookmark data, creating an avenue for remote attackers to execute arbitrary web scripts or HTML code within the context of the victim's browser session.
The technical exploitation of this vulnerability occurs through the manipulation of bookmark entries that contain malicious payloads. When a user clicks on a crafted bookmark, the browser processes the malicious content without adequate input validation, allowing the injected script to execute in the victim's browser environment. This creates a persistent threat vector where attackers can leverage the compromised browser to perform actions such as stealing session cookies, redirecting users to malicious sites, or executing unauthorized commands on behalf of the victim. The vulnerability specifically targets the bookmark management functionality of Flock Browser, which serves as a legitimate feature for users to store and organize web resources.
The operational impact of CVE-2010-3202 extends beyond simple script execution, as it can enable sophisticated attack chains that align with multiple tactics described in the MITRE ATT&CK framework. Attackers can use this vulnerability to establish persistent access through session hijacking, perform phishing attacks by redirecting users to malicious sites, or deploy additional malware through the compromised browser environment. The threat is particularly concerning because bookmarks are typically trusted elements within browser applications, making users less likely to suspect malicious content. This vulnerability can be exploited in social engineering campaigns where attackers craft seemingly legitimate bookmarks that appear to be from trusted sources, thereby increasing the success rate of exploitation attempts.
Mitigation strategies for CVE-2010-3202 should focus on both immediate remediation and long-term security improvements. Organizations should immediately update to patched versions of Flock Browser or implement browser security controls that enforce strict input validation for all bookmark data. The implementation of Content Security Policy headers and proper HTML escaping mechanisms can help prevent script execution even if the initial vulnerability is not fully patched. Additionally, user education regarding bookmark verification and suspicious link behavior remains crucial, as this vulnerability demonstrates how legitimate browser features can be weaponized. Security teams should also consider network-level monitoring to detect and block suspicious bookmark-related traffic patterns that may indicate exploitation attempts. The vulnerability underscores the importance of input sanitization and proper validation in all browser components, particularly those handling user-generated content, as outlined in OWASP secure coding practices and security development lifecycle requirements.