A vulnerability was found in Weaver E-Office 9.5. It has been classified as critical. This affects an unknown part of the file /inc/jquery/uploadify/uploadify.php. The manipulation of the argument Filedata leads to unrestricted upload. It is possible to initiate the attack remotely. The exploit has been disclosed to the public and may be used. The identifier VDB-228777 was assigned to this vulnerability. NOTE: The vendor was contacted early about this disclosure but did not respond in any way.
Risk to organizations includes potential unauthorized access and data breaches due to malicious file uploads. Given the exploitability and the critical nature of this vulnerability, organizations should prioritize patching immediately.
Vulnerability Details
The vulnerability allows for unrestricted file uploads in Weaver E-Office 9.5. The CVSS score is 6.3, indicating a medium severity level. The attack vector is network-based, with low complexity and requiring low privileges. The publication date of this vulnerability is May 11, 2023.
Technical Analysis
The root cause of this vulnerability is inadequate input validation, allowing an attacker to upload arbitrary files. The attack vector is network-based, meaning that an attacker does not need physical access to exploit this vulnerability. The exploitation complexity is low, and no user interaction is required to trigger the vulnerability. The confidentiality, integrity, and availability impacts are assessed as low.
Risk & Impact Analysis
Real-world deployment risk includes the potential for remote code execution through malicious file uploads. This could lead to unauthorized access and data breaches within organizations. The blast radius could be extensive, affecting various systems if the vulnerability is exploited. Organizations should assess their exposure and include this vulnerability in their priority patch cycle.
Exploitation Status
Signal | Status |
|---|---|
Known Exploit | Yes |
Public PoC | Yes |
Actively Exploited | No |
Ransomware Use | No |
Affected Versions
The affected version is Weaver E-Office 9.5. Organizations using this version should immediately take action to remediate this vulnerability.
Mitigation & Remediation
Organizations should patch Weaver E-Office to the latest version to mitigate this vulnerability. If a patch is not available, consider implementing input validation and file type restrictions as workarounds. Additionally, organizations should monitor for suspicious file upload activities to identify potential exploitation attempts.
Detection Guidance
Security teams should monitor logs for unusual activities related to file uploads. Behavioral anomalies such as unexpected file types or sizes being uploaded should be flagged for review.
AppSecure Threat Intelligence Insight
The long-term significance of this vulnerability lies in its indication of inadequate file upload controls in web applications. Security teams should learn from this incident to enhance their defenses against similar vulnerabilities. A proactive approach to application security, including regular security assessments and code reviews, is essential to prevent such vulnerabilities from being introduced.
Disclaimer: This content was generated using AI. While we strive for accuracy, please verify critical information with official sources.
.webp)