Apache Tomcat: AJP response header mix-up
CVE-2023-34981

7.5HIGH

Key Information:

Vendor
Apache
Status
Apache Tomcat
Vendor
CVE Published:
21 June 2023

Summary

A regression in the security fix related to a previous bug within Apache Tomcat has introduced a vulnerability that can lead to information disclosure. Specifically, when the response lacks HTTP headers, the AJP SEND_HEADERS message is not sent. This omission allows at least one AJP proxy (mod_proxy_ajp) to unintentionally reuse the response headers from prior requests. This misbehavior could result in sensitive information being exposed, compromising the server's overall security.

Affected Version(s)

Apache Tomcat 11.0.0-M5

Apache Tomcat 10.1.8

Apache Tomcat 9.0.74

References

https://lists.apache.org/thread/j1ksjh9m9gx1q60rtk1sbzmxh...
vendor-advisory
https://security.netapp.com/advisory/ntap-20230714-0003/

CVSS V3.1

Score:
7.5
Severity:
HIGH
Confidentiality:
High
Integrity:
None
Availability:
High
Attack Vector:
Network
Attack Complexity:
Low
Privileges Required:
None
User Interaction:
None
Scope:
Unchanged

Timeline

  • Vulnerability published

  • Vulnerability Reserved

Credit

Hidenobu Hayashi and Yuichiro Fukubayashi of M3, Inc.
.