A cross site scripting (XSS) vulnerability exists in Check_MK versions 1.4.0x prior to 1.4.0p6, allowing an unauthenticated remote attacker to inject arbitrary HTML or JavaScript via the _username parameter when attempting authentication to webapi.py, which is returned unencoded with content type text/html.
{
"binaries": [
{
"binary_version": "1.2.6p12-1ubuntu0.16.04.1+esm1",
"binary_name": "check-mk-agent"
},
{
"binary_version": "1.2.6p12-1ubuntu0.16.04.1+esm1",
"binary_name": "check-mk-agent-logwatch"
},
{
"binary_version": "1.2.6p12-1ubuntu0.16.04.1+esm1",
"binary_name": "check-mk-config-icinga"
},
{
"binary_version": "1.2.6p12-1ubuntu0.16.04.1+esm1",
"binary_name": "check-mk-config-nagios3"
},
{
"binary_version": "1.2.6p12-1ubuntu0.16.04.1+esm1",
"binary_name": "check-mk-livestatus"
},
{
"binary_version": "1.2.6p12-1ubuntu0.16.04.1+esm1",
"binary_name": "check-mk-multisite"
},
{
"binary_version": "1.2.6p12-1ubuntu0.16.04.1+esm1",
"binary_name": "check-mk-server"
}
],
"availability": "Available with Ubuntu Pro: https://ubuntu.com/pro"
}
{
"binaries": [
{
"binary_version": "1.2.8p16-1ubuntu0.2",
"binary_name": "check-mk-agent"
},
{
"binary_version": "1.2.8p16-1ubuntu0.2",
"binary_name": "check-mk-agent-logwatch"
},
{
"binary_version": "1.2.8p16-1ubuntu0.2",
"binary_name": "check-mk-config-icinga"
},
{
"binary_version": "1.2.8p16-1ubuntu0.2",
"binary_name": "check-mk-livestatus"
},
{
"binary_version": "1.2.8p16-1ubuntu0.2",
"binary_name": "check-mk-multisite"
},
{
"binary_version": "1.2.8p16-1ubuntu0.2",
"binary_name": "check-mk-server"
}
],
"availability": "No subscription required"
}