Bug 1668531 (CVE-2019-0542)

Summary:	CVE-2019-0542 xterm.js: Mishandling of special characters allows for remote code execution
Product:	[Other] Security Response	Reporter:	Sam Fowler <sfowler>
Component:	vulnerability	Assignee:	Red Hat Product Security <security-response-team>
Status:	CLOSED ERRATA	QA Contact:
Severity:	medium	Docs Contact:
Priority:	medium
Version:	unspecified	CC:	ahardin, aos-bugs, bleanhar, bmontgom, bpeterse, ccoleman, dedgar, eparis, jburrell, jgoulding, jokerman, mchappel, nstielau, sponnaga
Target Milestone:	---	Keywords:	Security
Target Release:	---
Hardware:	All
OS:	Linux
Whiteboard:
Fixed In Version:	xtermjs 3.8.1, xtermjs 3.9.2, xtermjs 3.10.1	Doc Type:	If docs needed, set a value
Doc Text:	It was found that xterm.js does not sanitize terminal escape sequences in browser terminals allowing for execution of arbitrary commands. An attacker could exploit this by convincing a user with a xterm.js browser terminal to display an escape sequence by, for example, reading a from a log file containing attacker-controlled input.	Story Points:	---
Clone Of:		Environment:
Last Closed:	2019-06-10 22:58:46 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:	1668235, 1671631, 1689101, 1689102, 1707211
Bug Blocks:	1668532

Description Sam Fowler 2019-01-23 02:44:42 UTC

A remote code execution vulnerability exists in Xterm.js before versions 3.8.1, 3.9.2 and 3.10.1 when the component mishandles special characters.


Upstream Releases:

https://github.com/xtermjs/xterm.js/releases/tag/3.8.1
https://github.com/xtermjs/xterm.js/releases/tag/3.9.2
https://github.com/xtermjs/xterm.js/releases/tag/3.10.1

Comment 2 Sam Fowler 2019-01-23 05:39:53 UTC

Upstream Patches:

https://github.com/xtermjs/xterm.js/commit/50abb43e
https://github.com/xtermjs/xterm.js/commit/eeca95b6
https://github.com/xtermjs/xterm.js/commit/f3bfcc36
https://github.com/xtermjs/xterm.js/commit/3592c641

Comment 9 Sam Fowler 2019-05-07 04:16:16 UTC

Statement:

This issue affects both the atomic-openshift-web-console RPM and openshift3/ose-console container image shipped in OpenShift Container Platform. These components provide a web console for opening in-browser terminals in cluster pods. Successful exploitation of this issue would require an attacker to convince an authorized user to open an in-browser terminal on a target pod and execute a command that prints attacker-controlled input. Red Hat Product Security have rated this issue as having security impact of Moderate. A future update may address this issue.

Comment 11 errata-xmlrpc 2019-06-10 16:55:53 UTC

This issue has been addressed in the following products:

  Red Hat OpenShift Container Platform 3.11

Via RHSA-2019:1422 https://access.redhat.com/errata/RHSA-2019:1422

Comment 12 errata-xmlrpc 2019-08-22 01:45:54 UTC

This issue has been addressed in the following products:

  Red Hat OpenShift Container Platform 3.10

Via RHSA-2019:2552 https://access.redhat.com/errata/RHSA-2019:2552

Comment 13 errata-xmlrpc 2019-09-05 05:03:36 UTC

This issue has been addressed in the following products:

  Red Hat OpenShift Container Platform 3.9

Via RHSA-2019:2551 https://access.redhat.com/errata/RHSA-2019:2551