CVE-2012-2411 in RealPlayer
Summary
by MITRE
Buffer overflow in RealNetworks RealPlayer before 15.0.4.53, and RealPlayer SP 1.0 through 1.1.5, allows remote attackers to execute arbitrary code via a crafted RealJukebox Media file.
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Analysis
by VulDB Data Team • 03/24/2021
The vulnerability identified as CVE-2012-2411 represents a critical buffer overflow flaw within RealNetworks RealPlayer software ecosystem affecting versions prior to 15.0.4.53 and RealPlayer SP 1.0 through 1.1.5. This security weakness stems from inadequate input validation mechanisms within the media parsing functionality that processes RealJukebox Media files. The flaw manifests when the application fails to properly bounds-check data structures during the parsing of maliciously crafted media files, creating opportunities for attackers to manipulate memory allocation patterns and potentially overwrite critical program execution structures. The vulnerability falls under the Common Weakness Enumeration category CWE-121, which specifically addresses stack-based buffer overflow conditions where insufficient bounds checking allows attackers to write beyond allocated memory boundaries. From an operational perspective, this vulnerability presents a significant threat to enterprise and individual users who may unknowingly encounter maliciously crafted RealJukebox files through email attachments, web downloads, or peer-to-peer networks. The remote exploitation capability means that attackers can deliver malicious payloads without requiring physical access to target systems, making this vulnerability particularly dangerous in widespread deployment scenarios.
The technical exploitation of CVE-2012-2411 follows established patterns within the attack lifecycle as defined by the MITRE ATT&CK framework, specifically mapping to techniques involving code injection and privilege escalation. Attackers typically craft malicious RealJukebox files that contain oversized data structures designed to trigger the buffer overflow condition when processed by the vulnerable RealPlayer application. The overflow occurs during the parsing of media metadata or embedded content within the file format, where the application allocates fixed-size buffers that cannot accommodate the malicious input data. This condition allows attackers to overwrite adjacent memory locations including return addresses, function pointers, or other critical execution context elements. The attack vector leverages the principle of memory corruption exploitation where controlled input data can manipulate program execution flow to redirect code execution to attacker-controlled payload code. The vulnerability demonstrates characteristics consistent with the exploitation patterns described in the Cyber Kill Chain model, where the initial compromise occurs through delivery of malicious media content followed by execution of arbitrary code within the context of the target user's session.
Organizations and individual users facing this vulnerability must implement immediate mitigation strategies to protect against potential exploitation attempts. The primary and most effective mitigation involves updating to RealPlayer version 15.0.4.53 or later, which includes patched buffer validation routines and improved input sanitization mechanisms. System administrators should also consider implementing network-based security controls such as content filtering solutions that can identify and block malicious RealJukebox files before they reach end-user systems. Additional protective measures include disabling RealPlayer auto-execution capabilities, implementing strict file type validation policies, and deploying endpoint protection solutions that can detect anomalous behavior patterns associated with buffer overflow exploitation attempts. From a compliance standpoint, organizations should ensure that their vulnerability management processes include regular assessment of third-party media applications and their security postures, particularly those with widespread deployment and remote execution capabilities. The vulnerability also highlights the importance of maintaining updated security patches across all media handling applications and demonstrates the necessity of implementing defense-in-depth strategies that reduce the attack surface for similar classes of vulnerabilities. Organizations should also consider implementing user education programs to raise awareness about the risks of executing unknown media files and the importance of verifying file sources before opening potentially malicious content.