CVE-2002-2383 in f2html
Summary
by MITRE
SQL injection vulnerability in f2html.pl 0.1 through 0.4 allows remote attackers to execute arbitrary SQL commands via file names.
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Analysis
by VulDB Data Team • 06/12/2018
The vulnerability identified as CVE-2002-2383 represents a critical sql injection flaw in the f2html.pl utility version 0.1 through 0.4. This perl script serves as a file to html converter that processes file names and generates html output. The vulnerability stems from inadequate input validation and sanitization within the script's handling of file names, creating an avenue for malicious actors to inject arbitrary sql commands. The flaw occurs when the utility processes user-supplied file names without proper escaping or parameterization of sql queries, allowing attackers to manipulate the underlying database operations through crafted input sequences.
The technical implementation of this vulnerability aligns with common sql injection patterns where user-controllable data directly influences sql command construction. The f2html.pl utility appears to incorporate file names into sql queries without proper sanitization, enabling attackers to append malicious sql fragments to the executed commands. This creates a scenario where an attacker can manipulate the database query execution path by inserting sql metacharacters and commands within the file name parameter. The vulnerability specifically affects versions 0.1 through 0.4, suggesting that earlier or later releases may have implemented proper input validation mechanisms.
The operational impact of this vulnerability extends beyond simple data exfiltration, as remote attackers can execute arbitrary sql commands on the affected system. This capability allows for complete database compromise, including data modification, deletion, and unauthorized access to sensitive information. Attackers can potentially escalate privileges, create backdoors, or extract confidential data from the database. The remote nature of the attack means that exploitation does not require physical access to the system, making it particularly dangerous for web-facing applications that utilize this utility. The vulnerability also presents a significant risk to systems where the utility is integrated into larger web applications, as it could serve as a stepping stone for further attacks.
From a cybersecurity perspective, this vulnerability maps directly to CWE-89 sql injection and aligns with several ATT&CK techniques including command and control through database manipulation and credential access via database compromise. The attack surface is particularly concerning for organizations running web applications that process user-uploaded files or utilize file name parameters in database operations. Mitigation strategies should include immediate patching of the f2html.pl utility to versions that properly sanitize input parameters, implementing proper parameterized queries, and applying input validation controls. Organizations should also consider network segmentation and access controls to limit exposure of systems running vulnerable versions. The vulnerability demonstrates the critical importance of input validation and proper database query construction practices, particularly in utilities that handle user-supplied data and interact with database systems.