CVE-2007-2335 in Lunascape
Summary
by MITRE
Cross-site scripting (XSS) vulnerability in the RSS feed reader functionality in Lunascape 4.1.3 build2 and earlier allows remote attackers to inject arbitrary web script or HTML via unspecified vectors.
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Analysis
by VulDB Data Team • 08/30/2018
The vulnerability described in CVE-2007-2335 represents a classic cross-site scripting flaw within the RSS feed reader component of Lunascape web browser version 4.1.3 build2 and earlier. This type of vulnerability falls under the broader category of input validation failures that have been consistently identified as one of the most prevalent security weaknesses in web applications. The issue specifically affects the handling of RSS feed data within the browser's feed reader functionality, creating a potential attack vector where malicious actors can inject harmful scripts into the browser's rendering environment.
The technical nature of this vulnerability stems from inadequate sanitization of user-supplied data within the RSS feed processing pipeline. When the Lunascape browser encounters an RSS feed containing malicious script content, the application fails to properly escape or filter the input before rendering it in the browser context. This allows attackers to craft specially formatted RSS feeds that contain embedded javascript or html code which executes in the context of the user's browser session. The unspecified vectors mentioned in the description suggest that multiple input points within the RSS feed processing mechanism could potentially be exploited, making the vulnerability particularly concerning from a security assessment perspective.
The operational impact of this vulnerability extends beyond simple script execution, as it can enable a range of malicious activities including session hijacking, credential theft, and redirection to malicious websites. Attackers could leverage this flaw to inject persistent XSS payloads that would execute whenever users view affected RSS feeds, potentially compromising user sessions and accessing sensitive information. The vulnerability particularly affects users who rely on RSS feeds for news consumption or information aggregation, as these feeds are often automatically processed and displayed without additional user verification steps. This makes the attack surface more expansive as users may unknowingly encounter malicious content while browsing legitimate news sources or feed aggregators.
Mitigation strategies for this vulnerability should focus on implementing comprehensive input validation and output encoding mechanisms within the RSS feed reader component. The recommended approach involves applying strict sanitization of all RSS feed content before rendering, utilizing established XSS protection libraries and frameworks, and implementing Content Security Policy headers to prevent unauthorized script execution. Organizations should also consider implementing feed validation mechanisms that can detect and block known malicious patterns within RSS feeds. This vulnerability aligns with CWE-79 which specifically addresses cross-site scripting flaws, and represents a typical example of how web applications must properly handle untrusted input data to prevent code injection attacks. The ATT&CK framework would categorize this as a technique involving code injection within web applications, potentially leading to privilege escalation or data exfiltration through the browser's trusted context.