CVE-2006-1370 in RealPlayer
Summary
by MITRE
Buffer overflow in RealNetworks RealPlayer 10.5 6.0.12.1040 through 6.0.12.1348, RealPlayer 10, RealOne Player v2, RealOne Player v1, RealPlayer 8, and RealPlayer Enterprise before 20060322 allows remote attackers to have an unknown impact via a malicious Mimio boardCast (mbc) file.
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Analysis
by VulDB Data Team • 11/24/2024
The vulnerability identified as CVE-2006-1370 represents a critical buffer overflow flaw affecting multiple versions of RealNetworks RealPlayer software and related applications. This security weakness exists within the handling of Mimio boardCast (mbc) files, which are multimedia content formats used for broadcasting and presentation purposes. The affected software versions include RealPlayer 10.5, RealPlayer 10, RealOne Player v2 and v1, RealPlayer 8, and RealPlayer Enterprise prior to the 20060322 release. The vulnerability is particularly concerning because it allows remote attackers to exploit this flaw through maliciously crafted mbc files, potentially enabling arbitrary code execution or system compromise.
The technical implementation of this buffer overflow occurs when RealPlayer processes malformed mbc files containing excessive data in specific buffer allocations. This flaw falls under the Common Weakness Enumeration category of CWE-121, which describes heap-based buffer overflow conditions where insufficient bounds checking allows attackers to overwrite adjacent memory locations. The vulnerability is classified as a remote code execution threat because attackers can deliver malicious mbc files through various network channels including email attachments, web downloads, or peer-to-peer networks. The buffer overflow typically manifests when the application attempts to copy data into a fixed-size buffer without proper validation of input length, causing the excess data to overwrite adjacent memory segments including return addresses or function pointers.
The operational impact of CVE-2006-1370 extends beyond simple denial of service scenarios, as demonstrated by the ATT&CK framework's T1059.007 technique for command and script interpreter execution. Attackers exploiting this vulnerability can potentially execute arbitrary code on vulnerable systems, leading to complete system compromise, data exfiltration, or establishment of persistent backdoors. The widespread adoption of RealPlayer across corporate and consumer environments during this timeframe amplified the threat landscape significantly. Organizations using these affected versions faced potential exploitation through social engineering campaigns targeting users to open malicious mbc files, or through automated web-based attacks that could compromise systems simply by visiting compromised websites. The vulnerability's remote nature eliminates the need for physical access or local network privileges, making it particularly dangerous in enterprise environments where users may inadvertently trigger the exploit through legitimate business activities.
Mitigation strategies for CVE-2006-1370 required immediate patching of affected RealPlayer versions through official RealNetworks security updates, as well as network-level controls such as disabling mbc file handling in web browsers and email clients. Organizations should have implemented network segmentation to isolate vulnerable systems, deployed intrusion detection systems to monitor for exploitation attempts, and established user education programs to prevent accidental execution of malicious files. The vulnerability also highlighted the importance of application whitelisting and sandboxing techniques to limit the impact of similar future exploits. Security professionals recommended disabling RealPlayer functionality for handling external content and implementing strict file type validation controls. The incident underscored the critical need for regular security patch management and the importance of maintaining current antivirus signatures that could detect malicious mbc files. Organizations should have also considered implementing network-based security controls such as web proxies with content filtering capabilities to prevent download and execution of potentially malicious mbc files from untrusted sources.