CVE-2007-4838 in CellFactor Revolution
Summary
by MITRE
Multiple buffer overflows in CellFactor Revolution 1.03 and earlier allow remote attackers to execute arbitrary code via a long string in a (1) 0x21, (2) 0x22, or (3) 0x23 packet.
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Analysis
by VulDB Data Team • 01/21/2025
The vulnerability identified as CVE-2007-4838 represents a critical security flaw affecting CellFactor Revolution version 1.03 and earlier implementations. This issue manifests as multiple buffer overflow conditions within the network protocol handling mechanisms of the software, specifically targeting three distinct packet types designated by hexadecimal identifiers 0x21, 0x22, and 0x23. These packet types correspond to different operational functions within the CellFactor communication framework, making the vulnerability particularly dangerous as it can be exploited across multiple attack vectors. The buffer overflow conditions occur when the software processes incoming network packets containing excessively long strings, causing memory corruption that can be leveraged by malicious actors to gain unauthorized system access.
The technical nature of this vulnerability aligns with CWE-121, which describes stack-based buffer overflow conditions where insufficient bounds checking allows attackers to overwrite adjacent memory locations. The flaw operates at the network protocol level where the CellFactor Revolution software fails to properly validate the length of incoming data within specific packet types. When a malicious actor sends a packet containing an overly long string payload to any of these three packet types, the software's memory management routines become compromised, potentially allowing execution of arbitrary code with the privileges of the affected process. This type of vulnerability falls under the broader category of memory safety issues that have historically been among the most exploited classes of software flaws in cybersecurity.
The operational impact of CVE-2007-4838 extends significantly beyond simple code execution capabilities, as it provides attackers with a pathway to achieve complete system compromise. The vulnerability can be exploited remotely without requiring authentication, making it particularly attractive to threat actors seeking to infiltrate systems running vulnerable versions of CellFactor Revolution. Once exploited, the buffer overflow allows for privilege escalation and persistent access to affected systems, potentially enabling data exfiltration, system manipulation, or use as a foothold for further network penetration. The three distinct packet types create multiple attack surfaces, increasing the probability of successful exploitation and reducing the need for precise targeting of specific system configurations.
From a cybersecurity framework perspective, this vulnerability demonstrates characteristics consistent with tactics and techniques described in the MITRE ATT&CK framework under the execution and privilege escalation domains. The remote code execution capability maps directly to ATT&CK technique T1059, while the potential for privilege escalation aligns with T1068. Organizations should implement immediate mitigation strategies including patching to the latest available version of CellFactor Revolution, network segmentation to limit exposure, and monitoring for anomalous network traffic patterns that might indicate exploitation attempts. Additionally, network intrusion detection systems should be configured to identify and block traffic containing suspicious packet structures matching the vulnerable packet types. The vulnerability also underscores the importance of input validation and bounds checking in network protocol implementations, serving as a reminder that even legacy software systems require proper security hardening measures to prevent exploitation of memory corruption vulnerabilities that have been well-documented in cybersecurity literature for decades.