Multiple buffer overflows in iMatix Xitami Web Server 2.5c2 allow remote attackers to execute arbitrary code via a long If-Modified-Since header to (1) xigui32.exe or (2) xitami.exe.

Format string vulnerability in Xitami Web Server 2.2a through 2.5c2, and possibly other versions, allows remote attackers to cause a denial of service (daemon crash) and possibly execute arbitrary code via format string specifiers in a Long Running Web Process (LRWP) request, which triggers incorrect logging code involving the sendfmt function in the SMT kernel.

Multiple format string vulnerabilities in the SSI filter in Xitami Web Server 2.5c2, and possibly other versions, allow remote attackers to cause a denial of service (daemon crash) and possibly execute arbitrary code via format string specifiers in a URI that ends in (1) .ssi, (2) .shtm, or (3) .shtml, which triggers incorrect logging code involving the sendfmt function in the SMT kernel.

Xitami 2.5b installs the testcgi.exe program by default in the cgi-bin directory, which allows remote attackers to gain sensitive configuration information about the web server by accessing the program.

Cross-site scripting (XSS) vulnerability in Errors.gsl in Imatix Xitami 2.5b4 and 2.5b5 allows remote attackers to inject arbitrary web script or HTML via the (1) Javascript events, as demonstrated via an onerror event in an IMG SRC tag or (2) User-Agent field in an HTTP GET request.

Xitami 2.5d4 and earlier allows remote attackers to crash the server via an HTTP request to the /aux directory.

Imatix Xitami 2.5 b5 does not properly terminate certain Keep-Alive connections that have been broken or closed early, which allows remote attackers to cause a denial of service (crash) via a large number of concurrent sessions.