CVE-2022-32269 in RealPlayer
Summary
by MITRE • 06/03/2022
In Real Player 20.0.8.310, the G2 Control allows injection of unsafe javascript: URIs in local HTTP error pages (displayed by Internet Explorer core). This leads to arbitrary code execution.
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Analysis
by VulDB Data Team • 06/06/2022
The vulnerability identified as CVE-2022-32269 resides within Real Player version 20.0.8.310 and specifically affects the G2 Control component responsible for handling multimedia content. This flaw represents a critical security issue that exploits the interaction between Real Player's control mechanisms and Internet Explorer's core rendering engine. The vulnerability manifests when local HTTP error pages are displayed, creating an environment where malicious javascript: URIs can be injected and subsequently executed within the browser context. This represents a classic cross-site scripting vulnerability that has been escalated to arbitrary code execution capabilities.
The technical flaw stems from insufficient input validation and sanitization within the G2 Control's error handling mechanism. When Real Player encounters network errors during content delivery, it displays local error pages through Internet Explorer's core components. The vulnerability occurs because the application fails to properly sanitize user-supplied data that gets incorporated into these error pages, allowing attackers to inject malicious javascript: URIs that bypass normal security restrictions. This issue directly maps to CWE-79 - Improper Neutralization of Input During Web Page Generation, which is a fundamental weakness in web application security that enables cross-site scripting attacks. The vulnerability leverages the trust relationship between the browser and local application components, effectively allowing code execution with the privileges of the user running Real Player.
The operational impact of CVE-2022-32269 is severe and potentially devastating for affected systems. Attackers can exploit this vulnerability to execute arbitrary code on target machines with the same privileges as the user running Real Player, which typically includes full system access. This enables a wide range of malicious activities including data exfiltration, system compromise, and deployment of additional malware. The vulnerability is particularly dangerous because it requires no user interaction beyond visiting a malicious webpage or opening a compromised media file, making it highly exploitable in phishing campaigns or drive-by download scenarios. From an attack framework perspective, this vulnerability aligns with ATT&CK technique T1059.007 - Command and Scripting Interpreter: JavaScript, demonstrating how attackers can leverage browser-based scripting capabilities to achieve persistent system compromise.
Mitigation strategies for this vulnerability must address both immediate remediation and long-term security hardening measures. The primary recommendation involves updating to the latest version of Real Player where this vulnerability has been patched, as RealNetworks has released security updates to address the issue. Organizations should implement network-based restrictions to prevent access to untrusted content and consider deploying application whitelisting policies that restrict execution of Real Player components. Additionally, browser security configurations should be hardened to prevent automatic execution of potentially dangerous content, including disabling javascript execution for local file access and implementing strict content security policies. System administrators should monitor for exploitation attempts through network traffic analysis and endpoint detection systems, as the vulnerability's exploitation pattern typically involves specific javascript: URI patterns that can be detected through signature-based monitoring. The remediation process should also include comprehensive security awareness training for users to recognize potentially malicious content and avoid visiting untrusted websites that might host exploit payloads.