.png){kind=logo}
Executive Summary
CVE-2022-31813 is a critical vulnerability affecting the Apache HTTP Server, specifically versions 2.4.53 and earlier. This flaw arises from the server's inability to properly handle X-Forwarded-* headers due to the client-side Connection header hop-by-hop mechanism. The vulnerability poses a significant risk as it can be exploited to bypass IP-based authentication on the origin server or application. Although there have been no confirmed cases of active exploitation in the wild, the potential for misuse remains high, especially in environments where IP-based authentication is a primary security measure. Organizations using affected versions of Apache HTTP Server are strongly advised to upgrade to version 2.4.54 or later and review their authentication configurations to mitigate potential risks.
Technical Information
CVE-2022-31813 is a high-severity vulnerability with a CVSS score of 8.0, indicating its potential impact on affected systems. The vulnerability was published on June 9, 2022, and affects Apache HTTP Server versions 2.4.53 and earlier. The core issue lies in the server's failure to forward X-Forwarded- headers to the origin server due to the client-side Connection header hop-by-hop mechanism. This flaw can be exploited by an unauthenticated attacker with network access, allowing them to manipulate the X-Forwarded- headers and potentially bypass IP-based authentication mechanisms.
The vulnerability is particularly concerning for environments that rely heavily on IP-based authentication, as it undermines the trust model by allowing attackers to spoof their IP address. This can lead to unauthorized access to sensitive resources and data, posing a significant threat to the security and integrity of affected systems. The vulnerability is further exacerbated by the widespread use of Apache HTTP Server, making it a prime target for attackers seeking to exploit this flaw.
To address this vulnerability, it is crucial for organizations to upgrade to Apache HTTP Server version 2.4.54 or later, where the issue has been resolved. Additionally, organizations should review their server configurations to ensure that IP-based authentication mechanisms are not solely relied upon for security. Implementing additional layers of authentication, such as multi-factor authentication, can help mitigate the risk of exploitation.
Exploitation in the Wild
As of the latest reports, there have been no confirmed cases of CVE-2022-31813 being actively exploited in the wild. However, the potential for exploitation exists, particularly in environments where IP-based authentication is a critical security measure. Organizations should remain vigilant and monitor for any unusual patterns in header manipulation that could indicate an attempted exploitation.
APT Groups using this vulnerability
Currently, there are no known Advanced Persistent Threat (APT) groups associated with the exploitation of CVE-2022-31813. However, given the vulnerability's potential impact, it is crucial for organizations to stay informed about any emerging threats or groups that may seek to exploit this flaw in the future.
Affected Product Versions
The vulnerability affects Apache HTTP Server versions 2.4.53 and earlier. Organizations using these versions are at risk and should prioritize upgrading to version 2.4.54 or later to mitigate the vulnerability.
Workaround and Mitigation
The primary recommendation for mitigating CVE-2022-31813 is to upgrade to Apache HTTP Server version 2.4.54 or later, where the vulnerability has been addressed. In addition to upgrading, organizations should review and adjust their server configurations to ensure that IP-based authentication mechanisms are not solely relied upon for security. Implementing additional layers of authentication, such as multi-factor authentication, can further enhance security. Monitoring solutions should also be implemented to detect unusual patterns in header manipulation that could indicate an attempted exploitation.
References
For more detailed information on CVE-2022-31813, please refer to the following resources:
- NVD CVE-2022-31813: https://nvd.nist.gov/vuln/detail/CVE-2022-31813
- Apache HTTP Server Security Vulnerabilities: http://httpd.apache.org/security/vulnerabilities_24.html
- Rapid7 Vulnerability Database: https://www.rapid7.com/db/vulnerabilities/apache-httpd-cve-2022-31813/
- Synacktiv Analysis on CVE-2022-31813: https://www.synacktiv.com/en/publications/cve-2022-31813-forwarding-addresses-is-hard
Rescana is here for you
At Rescana, we are committed to helping our customers navigate the complex landscape of cybersecurity threats. Our Continuous Threat and Exposure Management (CTEM) platform is designed to provide comprehensive threat intelligence and proactive measures to protect your organization from vulnerabilities like CVE-2022-31813. If you have any questions about this report or any other cybersecurity concerns, please do not hesitate to contact us at ops@rescana.com. We are here to support you in safeguarding your digital assets and ensuring the security of your systems.
Comments