DescriptionThe error page mechanism of the Java Servlet Specification requires that, when an error occurs and an error page is configured for the error that occurred, the original request and response are forwarded to the error page. This means that the request is presented to the error page with the original HTTP method. If the error page is a static file, expected behaviour is to serve content of the file as if processing a GET request, regardless of the actual HTTP method. The Default Servlet in Apache Tomcat 9.0.0.M1 to 9.0.0.M20, 8.5.0 to 8.5.14, 8.0.0.RC1 to 8.0.43 and 7.0.0 to 7.0.77 did not do this. Depending on the original request this could lead to unexpected and undesirable results for static error pages including, if the DefaultServlet is configured to permit writes, the replacement or removal of the custom error page. Notes for other user provided error pages: (1) Unless explicitly coded otherwise, JSPs ignore the HTTP method. JSPs used as error pages must must ensure that they handle any error dispatch as a GET request, regardless of the actual method. (2) By default, the response generated by a Servlet does depend on the HTTP method. Custom Servlets used as error pages must ensure that they handle any error dispatch as a GET request, regardless of the actual method.
SourceCVE (at NVD; CERT, LWN, oss-sec, fulldisc, bugtraq, EDB, Metasploit, Red Hat, Ubuntu, Gentoo, SuSE, Mageia, GitHub code/issues, web search, more)
ReferencesDLA-996-1, DSA-3891-1, DSA-3892-1
NVD severitymedium (attack range: remote)
Debian Bugs802312, 864447

Vulnerable and fixed packages

The table below lists information on source packages.

Source PackageReleaseVersionStatus
tomcat6 (PTS)wheezy6.0.45+dfsg-1~deb7u1vulnerable
wheezy (security)6.0.45+dfsg-1~deb7u5vulnerable
jessie (security), jessie6.0.45+dfsg-1~deb8u1fixed
tomcat7 (PTS)wheezy7.0.28-4+deb7u4vulnerable
wheezy (security)7.0.28-4+deb7u15fixed
jessie (security), jessie7.0.56-3+deb8u11fixed
buster, sid7.0.78-1fixed
tomcat8 (PTS)jessie8.0.14-1+deb8u10fixed
jessie (security)8.0.14-1+deb8u11fixed
stretch (security), stretch8.5.14-1+deb9u2fixed
buster, sid8.5.23-1fixed

The information below is based on the following data on fixed versions.

PackageTypeReleaseFixed VersionUrgencyOriginDebian Bugs


Since 7.0.72-3, src:tomcat7 only builds the Servlet API
Since 6.0.41-3, src:tomcat6 only builds a servlet and docs in Jessie
[wheezy] - tomcat6 <end-of-life> (Not supported in Wheezy)
Fixed by: (8.5.x)
Fixed by: (8.5.x)
Fixed by: (8.0.x)
Fixed by: (8.0.x)
Fixed by: (7.0.x)
Fixed by: (7.0.x)

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