Description
When running Apache Tomcat 7.0.0 to 7.0.79 on Windows with HTTP PUTs enabled (e.g. via setting the readonly initialisation parameter of the Default to false) it was possible to upload a JSP file to the server via a specially crafted request. This JSP could then be requested and any code it contained would be executed by the server.
Remediation
References
http://breaktoprotect.blogspot.com/2017/09/the-case-of-cve-2017-12615-tomcat-7-put.html
http://www.securityfocus.com/bid/100901
http://www.securitytracker.com/id/1039392
https://access.redhat.com/errata/RHSA-2017:3080
https://access.redhat.com/errata/RHSA-2017:3081
https://access.redhat.com/errata/RHSA-2017:3113
https://access.redhat.com/errata/RHSA-2017:3114
https://access.redhat.com/errata/RHSA-2018:0465
https://access.redhat.com/errata/RHSA-2018:0466
https://github.com/breaktoprotect/CVE-2017-12615
https://lists.apache.org/thread.html/388a323769f1dff84c9ec905455aa73fbcb20338e3c7eb131457f708%40%3Cdev.tomcat.apache.org%3E
https://lists.apache.org/thread.html/3d19773b4cf0377db62d1e9328bf9160bf1819f04f988315086931d7%40%3Cdev.tomcat.apache.org%3E
https://lists.apache.org/thread.html/845312a10aabbe2c499fca94003881d2c79fc993d85f34c1f5c77424%40%3Cdev.tomcat.apache.org%3E
https://lists.apache.org/thread.html/8fcb1e2d5895413abcf266f011b9918ae03e0b7daceb118ffbf23f8c%40%3Cannounce.tomcat.apache.org%3E
https://lists.apache.org/thread.html/r6d03e45b81eab03580cf7f8bb51cb3e9a1b10a2cc0c6a2d3cc92ed0c%40%3Cannounce.apache.org%3E
https://lists.apache.org/thread.html/r9136ff5b13e4f1941360b5a309efee2c114a14855578c3a2cbe5d19c%40%3Cdev.tomcat.apache.org%3E
https://security.netapp.com/advisory/ntap-20171018-0001/
https://www.exploit-db.com/exploits/42953/
https://www.synology.com/support/security/Synology_SA_17_54_Tomcat
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