CVE-2007-1074 in NewsBin
Summary
by MITRE
Multiple buffer overflows in NewsBin Pro 5.33 and NewsBin Pro 4.x allow user-assisted remote attackers to execute arbitrary code via a long (1) DataPath or (2) DownloadPath attributed in a (a) NBI file, or (3) a long group field in a (b) NZB file.
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Analysis
by VulDB Data Team • 08/24/2024
The vulnerability identified as CVE-2007-1074 represents a critical buffer overflow issue affecting NewsBin Pro versions 4.x and 5.33, exposing systems to remote code execution attacks. This flaw resides in the parsing mechanisms of news group file formats, specifically targeting the handling of file path attributes and group fields within NBI and NZB file structures. The vulnerability operates through user-assisted remote exploitation, meaning an attacker must convince a victim to open a maliciously crafted file, but once triggered, the attack can execute arbitrary code on the victim's system with the privileges of the affected application.
The technical implementation of this vulnerability stems from insufficient input validation and boundary checking within the NewsBin Pro application. When processing NBI files containing excessively long DataPath or DownloadPath attributes, or NZB files with overly long group fields, the application fails to properly validate string lengths before copying data into fixed-size buffers. This classic buffer overflow condition occurs because the software allocates a predetermined amount of memory for these fields but does not verify that incoming data exceeds these allocated boundaries. The flaw manifests through CWE-121, which categorizes buffer overflow conditions where data is copied into a buffer without proper bounds checking, and CWE-122, which addresses insufficient boundary checking for buffer operations.
The operational impact of this vulnerability extends beyond simple code execution, as it provides attackers with potential system compromise capabilities that align with ATT&CK technique T1059.007 for command and scripting interpreter. An attacker exploiting this vulnerability could gain unauthorized access to the victim's system, potentially escalating privileges through the application's execution context, and establish persistent access points. The vulnerability affects the core functionality of NewsBin Pro, which is designed to manage newsgroup downloads and organization, making it particularly dangerous for users who regularly process news group files from untrusted sources. The attack vector requires user interaction through file opening, making social engineering a significant component of successful exploitation.
Mitigation strategies for this vulnerability should encompass multiple layers of defense as recommended by cybersecurity frameworks. The primary remediation involves updating to patched versions of NewsBin Pro, as the vulnerability was addressed through proper input validation and buffer management. Organizations should implement strict file validation policies for news group files, particularly those received from external sources, and consider deploying application whitelisting solutions to restrict execution of untrusted binaries. Network-based defenses such as intrusion detection systems should monitor for suspicious file transfer patterns, while endpoint protection solutions should provide real-time scanning capabilities for potentially malicious NBI and NZB files. Additionally, regular security awareness training for users regarding the risks of opening unknown file types can significantly reduce the success rate of social engineering attacks targeting this vulnerability. The remediation process should also include comprehensive system audits to identify any potential exploitation attempts that may have occurred prior to patching, as the vulnerability could have enabled persistent backdoor access to affected systems.