In Apache Tomcat 9.0.0.M1 to 9.0.30, 8.5.0 to 8.5.50 and 7.0.0 to 7.0.99 the HTTP header parsing code used an approach to end-of-line parsin
- 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- Where the record stands: published, rejected by its publisher, or superseded by another id.What do these mean?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
- Fix
- Fixed in 7.0.100, 8.5.51, 9.0.31
- Whether working attack code is public (Exploit-DB, Metasploit, Nuclei or GitHub). Public code makes attacks easier.What do these mean? →
- None on Exploit-DB, Metasploit or GitHub
- Exploitation: none
- Automatable: yes
- Technical impact: partial
Summary
In Apache Tomcat 9.0.0.M1 to 9.0.30, 8.5.0 to 8.5.50 and 7.0.0 to 7.0.99 the HTTP header parsing code used an approach to end-of-line parsing that allowed some invalid HTTP headers to be parsed as valid. This led to a possibility of HTTP Request Smuggling if Tomcat was located behind a reverse proxy that incorrectly handled the invalid Transfer-Encoding header in a particular manner. Such a reverse proxy is considered unlikely.
Timeline
- CVE published
- CISA SSVC assessment
Exploitation: none · Automatable: yes · Technical impact: partial
- Record last updated
Affected versions
- Apache Apache Tomcat
Apache Tomcat 9.0.0.M1 to 9.0.30, 8.5.0 to 8.5.50, 7.0.0 to 7.0.99
- tomcatBitnami
From 7.0.0 · fixed in 7.0.100; From 8.5.0 · fixed in 8.5.51; From 9.0.0 · fixed in 9.0.31
- org.apache.tomcat.embed:tomcat-embed-coreMaven
fixed in 7.0.100
- org.apache.tomcat.embed:tomcat-embed-coreMaven
From 8.0.0 · fixed in 8.5.51
- org.apache.tomcat.embed:tomcat-embed-coreMaven
From 9.0.0 · fixed in 9.0.31
- org.apache.tomcat:tomcatMaven
fixed in 7.0.100
- org.apache.tomcat:tomcatMaven
From 8.0.0 · fixed in 8.5.51
- org.apache.tomcat:tomcatMaven
From 9.0.0 · fixed in 9.0.31
References 19
lists.apache.org
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