QID 730656

Date Published: 2022-11-15

QID 730656: Apache Tomcat Request mix-up with h2c Vulnerability (CVE-2021-25122)

Apache Tomcat is an open source web server and servlet container developed by the Apache Software Foundation.

The fix for CVE-2020-9484 was incomplete. When using a highly unlikely configuration edge case, the Tomcat instance was still vulnerable to CVE-2020-9484. Note that both the previously published prerequisites for CVE-2020-9484 and the previously published non-upgrade mitigations for CVE-2020-9484 also apply to this issue.

Affected versions:
Apache Tomcat 10.0.0-M1 to 10.0.0

QID Detection Logic (Unauthenticated):
This QID sends a HTTP GET request to an invalid URL and based on the response confirms the vulnerable instance of Apache Tomcat running on the host.

Successful exploitation of this vulnerability could reveal sensitive information to an unauthorized attacker.

  • CVSS V3 rated as High - 7.5 severity.
  • CVSS V2 rated as Medium - 5 severity.
    • Solution
    Customers are advised to upgrade Apache Tomcat to the new version to remediate this vulnerability. For more information please refer to Apache Tomcat Security Advisory.

    Vendor References

    CVEs related to QID 730656

    CVE-2020-9484 | CVE-2021-25122 | CVE-2021-25329 |
    Software Advisories
    Advisory ID Software Component Link
    Apache Tomcat URL Logo tomcat.apache.org/security-10.html#Fixed_in_Apache_Tomcat_10.0.2
    By selecting these links, you may be leaving CVEreport webspace. We have provided these links to other websites because they may have information that would be of interest to you. No inferences should be drawn on account of other sites being referenced, or not, from this page. There may be other websites that are more appropriate for your purpose. CVEreport does not necessarily endorse the views expressed, or concur with the facts presented on these sites. Further, CVEreport does not endorse any commercial products that may be mentioned on these sites. Please address comments about any linked pages to [email protected].