Apache Tomcat: Security constraint bypass with HTTP/0.9
- Published
- Last modified
- Where the record stands: published, rejected by its publisher, or superseded by another id.What do these mean? →
- published
- Whether CISA lists it in its Known Exploited Vulnerabilities catalog: proof that attackers are using it.What do these mean? →
- Not listed in CISA KEV
- The rating the maker of the software gives it. Shown when it differs from the CVSS level.What do these mean? →
- Low (apache)
- Fix
- Fixed in 11.0.15, 10.1.50, 9.0.113
- Whether working attack code is public (Exploit-DB, Metasploit, Nuclei or GitHub). Public code makes attacks easier.What do these mean? →
- 1 proof of concept on GitHub
- Exploitation: none
- Automatable: no
- Technical impact: partial
Summary
Improper Input Validation vulnerability in Apache Tomcat. Tomcat did not limit HTTP/0.9 requests to the GET method. If a security constraint was configured to allow HEAD requests to a URI but deny GET requests, the user could bypass that constraint on GET requests by sending a (specification invalid) HEAD request using HTTP/0.9. This issue affects Apache Tomcat: from 11.0.0-M1 through 11.0.14, from 10.1.0-M1 through 10.1.49, from 9.0.0.M1 through 9.0.112. Older, EOL versions are also affected. Users are recommended to upgrade to version 11.0.15 or later, 10.1.50 or later or 9.0.113 or later, which fixes the issue.
Timeline
- CVE published
- CISA SSVC assessment
Exploitation: none · Automatable: no · Technical impact: partial
- Record last updated
Affected versions
- Apache Software Foundation Apache Tomcat
From 11.0.0-M1 · through 11.0.14; From 10.1.0-M1 · through 10.1.49; From 9.0.0.M1 · through 9.0.112; through 8.5.100
- org.apache.tomcat:tomcat-coyoteMaven
From 11.0.0-M1 · fixed in 11.0.15
- org.apache.tomcat:tomcat-coyoteMaven
From 10.1.0-M1 · fixed in 10.1.50
- org.apache.tomcat:tomcat-coyoteMaven
fixed in 9.0.113