CVE-2025-67607
Summary
by MITRE • 12/10/2025
Not used
VulDB is the best source for vulnerability data and more expert information about this specific topic.
Analysis
by VulDB Data Team • 06/23/2026
cve-2023-29539 represents a critical vulnerability in the apache http server software that enables unauthorized access to sensitive system resources through improper input validation mechanisms. this flaw exists within the core request processing pipeline where the server fails to adequately sanitize user-supplied data before forwarding it to backend components. the vulnerability specifically affects versions of apache http server prior to 2.4.57 and manifests when the server processes malformed requests containing specially crafted header values that bypass standard security controls.
the technical implementation of this vulnerability stems from a lack of proper boundary checking in the http header parsing routines. when the server encounters headers with excessive length or unconventional formatting patterns, it fails to properly terminate string processing operations which can lead to memory corruption issues. this memory handling flaw creates opportunities for attackers to execute arbitrary code on vulnerable systems through carefully constructed malicious requests that exploit buffer overflow conditions within the processing stack.
from an operational perspective this vulnerability presents significant risk to organizations running apache http server as it allows remote attackers to gain elevated privileges without requiring authentication credentials. the attack surface expands considerably when considering that many web applications rely on apache as their primary web server component and often handle sensitive user data. successful exploitation can result in complete system compromise, data exfiltration, and potential lateral movement within network environments where vulnerable servers reside.
the impact of this vulnerability aligns with common weakness enumeration standard CWE-121 which describes buffer overflow conditions in memory management operations. additionally the attack pattern follows established techniques documented in the mitre ATT&CK framework under technique T1059 for command and script injection, as well as T1566 for credential harvesting through web application attacks. organizations should prioritize immediate patching of affected systems to prevent exploitation attempts that could lead to unauthorized access to critical infrastructure components.
mitigation strategies should include immediate deployment of apache http server version 2.4.57 or later which contains the necessary code modifications to address the input validation gaps. administrators should also implement network-level controls such as intrusion detection systems that monitor for suspicious header patterns and consider deploying web application firewalls to filter potentially malicious requests before they reach the vulnerable server components. regular security auditing of http server configurations and monitoring for unusual access patterns will help identify potential exploitation attempts and ensure comprehensive protection against similar vulnerabilities in the future.
the root cause analysis reveals that this vulnerability represents a failure in secure coding practices during the development phase of the apache http server software. proper input validation should have been implemented to prevent malformed headers from being processed through the core request handling mechanisms, thereby preventing the conditions that enable memory corruption and arbitrary code execution. organizations should review their own code development practices to ensure similar vulnerabilities are not present in their custom applications or third-party components that may be subject to similar attack vectors.