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CVE-2017-9781

Published: 21 June 2017

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.

Notes

AuthorNote
0xnishit
fix 1.4.0p26: https://github.com/tribe29/checkmk/commit/55b67fe59fdf06d6ceaf0d3ae53f73dd4cdf4161
fix 1.2.8p27: https://github.com/tribe29/checkmk/commit/444b30ccd955467da7a88a5321fc54b042500292

Priority

Medium

Cvss 3 Severity Score

6.1

Score breakdown

Status

Package Release Status
check-mk
Launchpad, Ubuntu, Debian
impish Does not exist

groovy Does not exist

hirsute Does not exist

artful Ignored
(end of life)
bionic
Released (1.2.8p16-1ubuntu0.2)
cosmic Ignored
(end of life)
disco Ignored
(end of life)
eoan Ignored
(end of life)
focal Does not exist

jammy Does not exist

trusty Does not exist
(trusty was needed)
upstream
Released (1.4.0p6, 1.5.0i1, 1.2.8p27)
xenial
Released (1.2.6p12-1ubuntu0.16.04.1+esm1)
Available with Ubuntu Pro
yakkety Ignored
(end of life)
zesty Ignored
(end of life)

Severity score breakdown

Parameter Value
Base score 6.1
Attack vector Network
Attack complexity Low
Privileges required None
User interaction Required
Scope Changed
Confidentiality Low
Integrity impact Low
Availability impact None
Vector CVSS:3.0/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:N