Appsecure logo

CVE-2022-40664: Critical Vulnerability in Apache Shiro

A critical authentication bypass vulnerability in Apache Shiro could allow unauthorized access to sensitive information. Organizations should prioritize patching immediately to mitigate potential risks associated with this vulnerability.

CRITICALPublic ExploitCVSS 9.8 · Published October 12, 2022

Not a customer? See how AppSecure simulates real world attacks to protect your infrastructure.

Speak to Experts

CVE-2022-40664 is a critical authentication bypass vulnerability affecting Apache Shiro versions prior to 1.10.0. This vulnerability allows attackers to bypass authentication mechanisms when forwarding or including via RequestDispatcher, putting sensitive information at risk. With a CVSS score of 9.8, this vulnerability is classified as critical, indicating that it poses a serious threat to organizations that utilize Apache Shiro in their applications.

The real-world risk associated with this vulnerability is significant, as it opens the door for unauthorized access to protected resources. Organizations using impacted versions of Apache Shiro must act swiftly to address the vulnerability, as the potential for exploitation is high given its critical nature. The vulnerability was published on October 12, 2022, and organizations should prioritize patching immediately.

Currently, there is no confirmed public exploit available, but the presence of a GitHub repository related to this vulnerability suggests that potential proof-of-concept (PoC) code may exist. Organizations are advised to remain vigilant and monitor for any developments regarding exploitation attempts.

Given the critical severity, organizations are urged to address this vulnerability as part of their immediate patch management processes to mitigate the risk of unauthorized access and the potential for data breaches.

Vulnerability Details

The vulnerability is classified under CWE-287, which pertains to improper authentication. The official description states that 'Apache Shiro before 1.10.0, Authentication Bypass Vulnerability in Shiro when forwarding or including via RequestDispatcher.'

The CVSS score of 9.8 indicates critical severity due to the potential impact on confidentiality, integrity, and availability, all rated as high. The vulnerability allows attackers to exploit this flaw over a network with low complexity and no privileges or user interaction required.

This vulnerability affects all versions of Apache Shiro prior to 1.10.0, and organizations should ensure they upgrade to the latest version to protect against this risk.

Technical Analysis

The root cause of CVE-2022-40664 lies in the improper handling of request forwarding and inclusion mechanisms within Apache Shiro. Attackers exploiting this vulnerability can bypass authentication checks and gain unauthorized access to sensitive data.

The attack vector for this vulnerability is network-based, meaning that attackers can remotely exploit it without needing physical access to the system. The attack complexity is low, as no special privileges or user interaction is necessary to exploit the vulnerability.

The confidentiality, integrity, and availability impacts are all rated high, which indicates that successful exploitation could lead to unauthorized disclosure of sensitive information, modification of data, and disruption of service.

Risk & Impact Analysis

The deployment risk associated with this vulnerability is significant. Organizations using affected versions of Apache Shiro must understand that their applications could be exposed to unauthorized access, leading to potential data breaches, loss of customer trust, and compliance violations.

The urgency for organizations to address this vulnerability is critical. Given the high CVSS score and the nature of the vulnerability, organizations should prioritize patching immediately to mitigate possible exploitation. The potential blast radius of this vulnerability extends to all applications that utilize the affected versions of Apache Shiro.

With a low EPSS score of 0.00664, the immediate risk of exploitation may appear low; however, the critical nature of the vulnerability means organizations should not underestimate the potential for attackers to leverage this flaw.

Exploitation Status

Signal

Status

Known Exploit

Yes

Public PoC

Yes

Actively Exploited

No

Ransomware Use

No

Affected Versions

All versions of Apache Shiro prior to 1.10.0 are affected by this vulnerability, and organizations should ensure they apply the necessary patches to protect their systems.

Mitigation & Remediation

Organizations should upgrade to Apache Shiro version 1.10.0 or later to remediate this vulnerability. If upgrading is not immediately possible, implementing additional security measures such as request validation and input sanitization can help mitigate the risk. Regular security assessments and penetration testing should also be conducted to identify potential weaknesses in the application.

Detection Guidance

To detect potential exploitation attempts of this vulnerability, organizations should monitor logs for unusual access patterns, especially concerning RequestDispatcher usage. Additionally, behavioral anomalies in user access patterns should be noted, and network signatures should be established to identify any malicious activity targeting the Shiro framework.

AppSecure Threat Intelligence Insight

CVE-2022-40664 represents a crucial reminder of the importance of secure coding practices within frameworks like Apache Shiro. The vulnerability highlights the need for continuous monitoring of security trends and the implementation of robust security measures. Organizations should foster a culture of security awareness among developers and conduct regular security training sessions. Furthermore, adopting a proactive approach to security by engaging in penetration testing methodology can help organizations stay ahead of potential threats. Engaging in vulnerability management programs is essential for identifying and addressing weaknesses before they can be exploited.

Finally, organizations should consider adopting a comprehensive security strategy that includes AI security best practices to enhance their overall security posture.

Disclaimer: This content was generated using AI. While we strive for accuracy, please verify critical information with official sources.

Latest CVEs. Recently published vulnerabilities from the NVD database.

View all vulnerabilities
CVE IDSeverity
CVE-2025-65418HIGH
CVE-2025-65417MEDIUM
CVE-2025-65416MEDIUM
CVE-2025-65415MEDIUM
CVE-2025-61314HIGH

Protect Your Business with Hacker-Focused Approach.