CrushFTP prior to 10.5.1 is vulnerable to improperly controlled modification of dynamically-determined object attributes. This vulnerability allows attackers to exploit the system with a CVSS score of 9.8, categorized as critical. The severity of this vulnerability is significant as it poses a real-world risk by potentially allowing unauthorized access and control over sensitive data.
The vulnerability was published on November 18, 2023, and affects all versions of CrushFTP prior to 10.5.2. With a low attack complexity and no privileges required, the vulnerability can be exploited over the network without the need for user interaction. Organizations utilizing CrushFTP should prioritize patching immediately to prevent unauthorized access and data breaches.
Risk to organizations includes unauthorized data modification, loss of integrity, and potential system downtime. Given the critical nature of this vulnerability, it is imperative for defenders to act swiftly.
Currently, there is a known exploit for this vulnerability, and it is crucial for organizations to assess their exposure and apply the necessary patches or mitigations.
Vulnerability Details
The CVE-2023-43177 vulnerability is classified under CWE-913, indicating an issue with improperly controlled modification of object attributes. As mentioned, it affects CrushFTP versions before 10.5.2, and the CVSS vector is CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H.
The confidentiality, integrity, and availability impacts are all high, highlighting the severity of this vulnerability and the need for immediate remediation.
Technical Analysis
The root cause of this vulnerability lies in how CrushFTP handles dynamic attributes, allowing attackers to manipulate these attributes without proper controls. The attack vector is network-based, which means that an attacker can exploit this vulnerability remotely. The attack complexity is categorized as low, and no privileges or user interaction are required to exploit it.
Given the high impact on confidentiality, integrity, and availability, organizations must ensure they have robust monitoring and detection mechanisms in place.
Risk & Impact Analysis
Organizations leveraging CrushFTP are at significant risk due to this vulnerability. The potential blast radius includes the unauthorized access to sensitive data and disruption of services. With an EPSS score indicating a very high likelihood of exploitation, organizations should assess their exposure and prioritize patching.
The urgency for addressing this vulnerability cannot be overstated. Organizations should integrate this vulnerability into their security management and incident response plans.
Exploitation Status
Signal | Status |
|---|---|
Known Exploit | Yes |
Public PoC | Yes |
Actively Exploited | No |
Ransomware Use | No |
Affected Versions
All versions of CrushFTP prior to 10.5.2 are affected by this vulnerability. Organizations using these versions should take immediate action to patch their systems.
Mitigation & Remediation
To remediate this vulnerability, organizations should upgrade to CrushFTP version 10.5.2 or later. If an immediate patch is not available, consider implementing application-level security controls and monitoring to restrict access to sensitive functionalities.
Detection Guidance
Organizations should monitor logs for unusual access patterns and changes in object attributes. Behavioral anomalies related to unauthorized modifications should be flagged for further investigation.
AppSecure Threat Intelligence Insight
The discovery of CVE-2023-43177 highlights the ongoing challenges associated with web application security. Security teams should consider implementing rigorous application security testing methodologies, including application security assessments and continuous monitoring to identify similar vulnerabilities in their systems.
For organizations looking to strengthen their security posture, engaging in penetration testing can provide insights into potential weaknesses.
Additionally, organizations should stay informed about emerging threats and vulnerabilities through continuous education and training for their security teams.
Disclaimer: This content was generated using AI. While we strive for accuracy, please verify critical information with official sources.
.webp)