CVE-2002-1015 in RealJukebox 2info

Summary

by MITRE

RealJukebox 2 1.0.2.340 and 1.0.2.379, and RealOne Player Gold 6.0.10.505, allows remote attackers to execute arbitrary script in the Local computer zone by inserting the script into the skin.ini file of an RJS archive, then referencing skin.ini from a web page after it has been extracted, which is parsed as HTML by Internet Explorer or other Microsoft-based web readers.

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Analysis

by VulDB Data Team • 06/28/2024

This vulnerability exists in RealJukebox and RealOne Player software versions that fail to properly sanitize user-supplied data within skin configuration files. The flaw occurs when an attacker crafts malicious script content and embeds it into the skin.ini file of an RJS archive format. When this archive is downloaded and extracted on a victim's system, and subsequently referenced from a web page, the skin.ini file gets parsed as HTML by Internet Explorer or other Microsoft-based web readers. This creates a cross-site scripting scenario where arbitrary code can be executed within the local computer security zone, bypassing normal browser security restrictions.

The technical implementation exploits the trust relationship between the web browser and local file parsing mechanisms. When Internet Explorer processes a web page that references the extracted skin.ini file, it treats the file content as HTML rather than as a configuration file, leading to script execution in the local machine context. This represents a classic sandbox escape vulnerability where the application's security boundaries are violated. The vulnerability is particularly dangerous because it leverages the browser's HTML parsing capabilities to execute malicious code without requiring user interaction beyond visiting a malicious webpage.

The operational impact of this vulnerability is significant as it allows remote attackers to execute arbitrary code with the privileges of the local user. This can lead to complete system compromise, data theft, or installation of additional malware. The attack vector is particularly insidious because it requires no special privileges from the attacker and can be delivered through standard web browsing activities. The vulnerability affects systems running vulnerable versions of RealJukebox and RealOne Player software, creating a persistent threat vector that can be exploited across multiple platforms where these applications are installed.

Security mitigations for this vulnerability should focus on immediate software updates from RealNetworks, which would include proper input validation and sanitization of skin.ini file contents. Organizations should also implement network-based protections such as web application firewalls that can detect and block malicious script content in downloaded files. Additionally, user education regarding the dangers of downloading and executing files from untrusted sources remains crucial. This vulnerability aligns with CWE-79 (Cross-site Scripting) and follows ATT&CK technique T1059.007 (Command and Scripting Interpreter: JavaScript) for the execution phase. The flaw demonstrates the importance of proper input validation and the potential risks associated with applications that parse user-supplied content without adequate sanitization measures.

Disclosure

10/04/2002

Moderation

accepted

Entry

VDB-18929

CPE

ready

EPSS

0.01411

KEV

no

Activities

very low

Sources

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