Werk #7661

Componentomd
TitleFixed possible stored XSS using the internal server error handler
Date2017-07-06 09:43:59
Check_MK EditionCheck_MK Raw Edition (CRE)
Check_MK Version1.4.0p8,1.5.0i1,1.2.8p25
Level1 - Trivial Change
ClassSecurity Fix
CompatibilityCompatible - no manual interaction needed

The internal server error handler was displaying unescaped information from the error log of the webserver. When an attacker is able to add HTML code to error messages written to the error log of the web server, the internal server error handler was not escaping the HTML code when displaying it to the user.