CVE-2007-0925 in Community Server
Summary
by MITRE
Cross-site scripting (XSS) vulnerability in search/SearchResults.aspx in Community Server allows remote attackers to inject arbitrary web script or HTML via the q parameter.
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Analysis
by VulDB Data Team • 07/18/2024
The vulnerability identified as CVE-2007-0925 represents a classic cross-site scripting flaw within the Community Server web application platform. This issue specifically affects the search functionality component located at the SearchResults.aspx page where user input is not properly sanitized before being rendered back to the browser. The vulnerability resides in the handling of the q parameter which is used to capture search queries from users, making it a prime target for malicious input injection attacks that can compromise user sessions and data integrity.
The technical implementation flaw stems from insufficient input validation and output encoding practices within the Community Server framework. When users submit search terms through the q parameter, the application fails to adequately escape or filter special characters that could be interpreted as HTML or JavaScript code by web browsers. This allows attackers to craft malicious payloads that execute within the context of other users' browsers, leveraging the trust relationship between the victim's browser and the vulnerable web application. The vulnerability is classified as a reflected XSS attack since the malicious script is reflected off the web server in response to the user's search query.
The operational impact of this vulnerability extends beyond simple script execution as it enables attackers to perform various malicious activities including session hijacking, credential theft, and data exfiltration. An attacker could craft a search query containing malicious JavaScript code that would execute whenever other users view the search results page, potentially stealing cookies, redirecting users to malicious sites, or modifying page content to deceive users. The vulnerability affects the confidentiality, integrity, and availability of the web application by potentially allowing unauthorized access to user data and compromising the trust users place in the platform. This type of vulnerability can be exploited to create persistent threats that affect multiple users over time.
Organizations should implement comprehensive input validation and output encoding mechanisms to prevent such vulnerabilities from occurring in their web applications. The mitigation strategies should include implementing proper parameter validation that rejects or sanitizes potentially dangerous characters, employing context-appropriate output encoding for all user-supplied data, and utilizing web application firewalls to detect and block malicious payloads. Security practitioners should also consider implementing content security policies to limit the execution of unauthorized scripts and regularly conduct security assessments to identify and remediate similar vulnerabilities. This vulnerability aligns with CWE-79 which specifically addresses cross-site scripting flaws and relates to ATT&CK technique T1566 which covers spearphishing with a malicious attachment or link, emphasizing the need for robust web application security controls.