CVE-2023-45648

Summary

Improper Input Validation vulnerability in Apache Tomcat.Tomcat from 11.0.0-M1 through 11.0.0-M11, from 10.1.0-M1 through 10.1.13, from 9.0.0-M1 through 9.0.81 and from 8.5.0 through 8.5.93 did not correctly parse HTTP trailer headers. A specially crafted, invalid trailer header could cause Tomcat to treat a single request as multiple requests leading to the possibility of request smuggling when behind a reverse proxy.

Older, EOL versions may also be affected.

Users are recommended to upgrade to version 11.0.0-M12 onwards, 10.1.14 onwards, 9.0.81 onwards or 8.5.94 onwards, which fix the issue.

Affected Software

VendorProductVersion RangeStatus
Apache Software FoundationApache Tomcat11.0.0-M1 <= 11.0.0-M11affected
Apache Software FoundationApache Tomcat10.1.0-M1 <= 10.1.13affected
Apache Software FoundationApache Tomcat9.0.0-M1 <= 9.0.81affected
Apache Software FoundationApache Tomcat8.5.0 <= 8.5.93affected
Apache Software FoundationApache Tomcat3 < 8.5.0unknown
Apache Software FoundationApache Tomcat10.0.0-M1 <= 10.0.27unknown

Weaknesses

  • CWE-20: CWE-20 Improper Input Validation

ADP Enrichment

CVE Program Container

Additional References

CISA ADP Vulnrichment

  • SSVC:
  • Exploitation: none
    • Automatable: yes
    • Technical Impact: partial

References