Directory traversal vulnerability in src/http/modules/ngx_http_dav_module.c in nginx (aka Engine X) before 0.7.63, and 0.8.x before 0.8.17, allows remote authenticated users to create or overwrite arbitrary files via a .. (dot dot) in the Destination HTTP header for the WebDAV (1) COPY or (2) MOVE method.
http://www.openwall.com/lists/oss-security/2009/11/23/10
http://www.openwall.com/lists/oss-security/2009/11/20/1
http://security.gentoo.org/glsa/glsa-201203-22.xml
http://secunia.com/advisories/48577
http://secunia.com/advisories/36818
http://marc.info/?l=oss-security&m=125900327409842&w=2