QID 356267

Date Published: 2023-09-28

QID 356267: Amazon Linux Security Advisory for tomcat : ALASTOMCAT8.5-2023-007

A vulnerability in the jndi realm of apache tomcat allows an attacker to authenticate using variations of a valid user name and/or to bypass some of the protection provided by the lockout realm.
This issue affects apache tomcat 10.0.0-m1 to 10.0.5; 9.0.0.m1 to 9.0.45; 8.5.0 to 8.5.65. (
( CVE-2021-30640) apache tomcat 10.0.0-m1 to 10.0.6, 9.0.0.m1 to 9.0.46 and 8.5.0 to 8.5.66 did not correctly parse the http transfer-encoding request header in some circumstances leading to the possibility to request smuggling when used with a reverse proxy.
Specifically: - tomcat incorrectly ignored the transfer encoding header if the client declared it would only accept an http/1.0 response; - tomcat honoured the identify encoding; and - tomcat did not ensure that, if present, the chunked encoding was the final encoding. (
( CVE-2021-33037)



Note: The preceding description block is extracted directly from the security advisory. Using automation, we have attempted to clean and format it as much as possible without introducing additional issues.

Successful exploitation of this vulnerability could lead to a securitybreach or could affect integrity, availability, and confidentiality.

  • CVSS V3 rated as High - 6.5 severity.
  • CVSS V2 rated as Medium - 5.8 severity.
    • Solution
    Please refer to Amazon advisory: ALASTOMCAT8.5-2023-007 for affected packages and patching details, or update with your package manager.
    Vendor References

    CVEs related to QID 356267

    CVE-2021-30640 | CVE-2021-33037 |
    Software Advisories
    Advisory ID Software Component Link
    ALASTOMCAT8.5-2023-007 amazon linux 2 URL Logo alas.aws.amazon.com/AL2/ALASTOMCAT8.5-2023-007.html
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