CVE-2023-46818 is a high-severity vulnerability found in ISPConfig versions prior to 3.2.11p1. This vulnerability allows PHP code injection through the language file editor by an admin if the setting admin_allow_langedit is enabled. The CVSS score for this vulnerability is 7.2, indicating a high level of risk. The attack vector is network-based, and the attack complexity is low, which means that an attacker could exploit this vulnerability with relative ease.
Risk to organizations includes unauthorized execution of arbitrary PHP code, which could lead to data breaches, system compromises, and further exploitation of associated services. Given the nature of the vulnerability and its potential impact, organizations should prioritize patching immediately.
Currently, the vulnerability has known exploit code available on GitHub, indicating that attackers may leverage this vulnerability to gain unauthorized access to systems. Organizations should assess their exposure and take immediate action to mitigate this risk.
The urgency for defenders is high due to the availability of exploits and the potential for widespread impact. Organizations are advised to address this vulnerability in their priority patch cycle.
Vulnerability Details
The vulnerability in ISPConfig allows PHP code injection that can be exploited by an admin user with the admin_allow_langedit feature enabled. This issue impacts all versions of ISPConfig prior to 3.2.11p1. The CVSS 3.1 score of 7.2 reflects a high severity level, with confidentiality, integrity, and availability impacts rated as high. The vulnerability is classified under CWE-94, which pertains to code injection.
Technical Analysis
The root cause of this vulnerability lies in inadequate validation of input within the language file editor of ISPConfig. Attackers may exploit this flaw by injecting malicious PHP code, which will be executed on the server. The attack vector is network-based, and the complexity for an attacker is low, requiring high privileges with no user interaction necessary for exploitation.
Successful exploitation can lead to high impacts across confidentiality, integrity, and availability, as the attacker can execute arbitrary code on the server.
Risk & Impact Analysis
The real-world deployment risk for this vulnerability is significant. Organizations using affected versions of ISPConfig are exposed to serious threats, which can result in unauthorized access to sensitive data, system manipulation, or complete system compromise. Given the high EPS score of 0.891, organizations should recognize the critical urgency for addressing this vulnerability and implement fixes immediately.
The blast radius for this vulnerability is considerable, as it can affect multiple components of the ISPConfig infrastructure, leading to widespread consequences if exploited.
Exploitation Status
Signal | Status |
|---|---|
Known Exploit | Yes |
Public PoC | Yes |
Actively Exploited | No |
Ransomware Use | No |
Affected Versions
The versions of ISPConfig affected by this vulnerability are all versions prior to 3.2.11p1. Organizations should ensure they are running the latest version to mitigate this risk.
Mitigation & Remediation
Organizations should prioritize patching to version 3.2.11p1 or later to remediate this vulnerability. If a patch is not immediately available, consider disabling the admin_allow_langedit feature until a secure version can be applied. Additional security measures such as configuration hardening and network controls should be implemented to limit exposure.
For further guidance on security testing and remediation strategies, organizations may refer to penetration testing services.
Detection Guidance
Organizations should monitor logs for unusual activity related to the language file editor and track any unauthorized access attempts. Behavioral anomalies in system performance may also indicate attempts to exploit this vulnerability. Implementing network signatures that detect exploit attempts can aid in early detection.
AppSecure Threat Intelligence Insight
CVE-2023-46818 serves as a reminder of the importance of input validation in web applications. The availability of public exploits highlights the need for organizations to maintain an up-to-date patch management strategy. This incident reflects a broader trend in cybersecurity where misconfigurations and insufficient input validation lead to significant vulnerabilities.
To enhance their security posture, organizations should implement vulnerability management programs and regular security training for all personnel.
For organizations leveraging cloud services or APIs, a focus on secure coding practices can mitigate risks associated with similar vulnerabilities in the future. Regular assessments such as API security testing and comprehensive security reviews should be part of the operational routine.
In conclusion, organizations must remain vigilant against such vulnerabilities and actively seek to improve their security measures to protect against potential threats.
Disclaimer: This content was generated using AI. While we strive for accuracy, please verify critical information with official sources.
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