Bug 1524949 (CVE-2017-11507)

Summary:	CVE-2017-11507 check-mk: Stored XSS vulnerability using the internal server error handler
Product:	[Other] Security Response	Reporter:	Adam Mariš <amaris>
Component:	vulnerability	Assignee:	Red Hat Product Security <security-response-team>
Status:	CLOSED NOTABUG	QA Contact:
Severity:	medium	Docs Contact:
Priority:	medium
Version:	unspecified	CC:	andrea.veri, sisharma, smohan, ssaha, vbellur
Target Milestone:	---	Keywords:	Security
Target Release:	---
Hardware:	All
OS:	Linux
Whiteboard:
Fixed In Version:	check-mk 1.2.8p25, check-mk 1.4.0p9, check-mk 1.5.0i1	Doc Type:	If docs needed, set a value
Doc Text:		Story Points:	---
Clone Of:		Environment:
Last Closed:	2017-12-14 04:47:17 UTC	Type:	---
Regression:	---	Mount Type:	---
Documentation:	---	CRM:
Verified Versions:		Category:	---
oVirt Team:	---	RHEL 7.3 requirements from Atomic Host:
Cloudforms Team:	---	Target Upstream Version:
Embargoed:
Bug Depends On:
Bug Blocks:	1524950

Description Adam Mariš 2017-12-12 10:51:42 UTC

A cross site scripting (XSS) vulnerability exists in Check_MK versions 1.2.8x prior to 1.2.8p25 and 1.4.0x prior to 1.4.0p9, allowing an unauthenticated attacker to inject arbitrary HTML or JavaScript via the output_format parameter, and the username parameter of failed HTTP basic authentication attempts, which is returned unencoded in an internal server error page.

References:

https://www.tenable.com/security/research/tra-2017-20

Comment 1 Andrea Veri 2017-12-13 14:41:53 UTC

We're shipping 1.2.8p26 already on all the supported channels. Is this report still relevant?

Comment 2 Siddharth Sharma 2017-12-14 04:44:43 UTC

Analysis:

As per report attack vector is http://[target]/[sitename]/check_mk/login.py?output_format=<script>alert(%27XSS%27)</script>.
check_mk/login.py is part of check-mk-multisite rpm, this rpm is not shipped with Red Hat Gluster Storage 3.

Comment 3 Siddharth Sharma 2017-12-14 04:46:25 UTC

Statement:

Red Hat Gluster Storage 3 does not ship check-mk-multisite rpm, and is therefore not affected by this flaw.

Comment 4 Adam Mariš 2017-12-14 10:17:57 UTC

(In reply to Andrea Veri from comment #1)
> We're shipping 1.2.8p26 already on all the supported channels. Is this
> report still relevant?

I know, therefore Fedora is marked as not affected. No action is needed, thanks for checking though!