lib/xymond_ipc.c in Xymon 4.1.x, 4.2.x, and 4.3.x before 4.3.25 use weak permissions (666) for an unspecified IPC message queue, which allows local users to inject arbitrary messages by writing to that queue.
{
"availability": "No subscription required",
"binaries": [
{
"binary_name": "xymon",
"binary_version": "4.3.25-1"
},
{
"binary_name": "xymon-client",
"binary_version": "4.3.25-1"
},
{
"binary_name": "xymon-client-dbgsym",
"binary_version": "4.3.25-1"
},
{
"binary_name": "xymon-dbgsym",
"binary_version": "4.3.25-1"
}
]
}