CVE-2011-1339 in Search Appliance
Summary
by MITRE
Cross-site scripting (XSS) vulnerability in Google Search Appliance before 5.0 allows remote attackers to inject arbitrary web script or HTML via unspecified vectors.
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Analysis
by VulDB Data Team • 01/28/2018
The vulnerability identified as CVE-2011-1339 represents a critical cross-site scripting flaw within Google Search Appliance versions prior to 5.0, classified under CWE-79 in the Common Weakness Enumeration framework. This vulnerability exposes organizations to significant security risks by allowing remote attackers to inject malicious web scripts or HTML content into the search appliance's user interface, potentially compromising user sessions and data integrity. The unspecified attack vectors indicate that the flaw could be exploited through multiple entry points within the appliance's web interface handling mechanisms.
The technical nature of this vulnerability stems from insufficient input validation and output encoding within the Google Search Appliance's web components. When users interact with the search interface or view search results, the appliance fails to properly sanitize user-supplied input before rendering it in the browser context. This weakness creates an environment where malicious actors can craft specially formatted search queries or parameters that, when processed by the appliance, execute unintended JavaScript code within the victim's browser. The vulnerability operates at the application layer and specifically affects the web-based administrative and search interfaces of the appliance.
From an operational perspective, this XSS vulnerability presents severe implications for organizations relying on Google Search Appliance for enterprise search functionality. Attackers could exploit this flaw to steal user session cookies, redirect victims to malicious websites, or inject phishing content that appears legitimate within the search results. The impact extends beyond simple data theft to potentially enabling further attacks such as privilege escalation or lateral movement within the network. Organizations using older versions of the appliance face increased risk of data breaches and compromised user trust, particularly in environments where sensitive corporate information is indexed and searchable.
Mitigation strategies for CVE-2011-1339 require immediate action to upgrade the Google Search Appliance to version 5.0 or later, which includes proper input sanitization and output encoding mechanisms. Organizations should also implement additional defensive measures such as web application firewalls, content security policies, and regular security assessments of their search infrastructure. The vulnerability aligns with ATT&CK technique T1566.001 for initial access through malicious web content and T1059.007 for command and scripting interpreter through web shells. Security teams must conduct comprehensive vulnerability scans to identify all instances of affected appliances and ensure proper patch management processes are in place to prevent similar issues in the future.