Bug 1593001 (CVE-2018-1000544)

Summary:	CVE-2018-1000544 rubyzip: arbitrary file write vulnerability / arbitrary code execution using a specially crafted zip file
Product:	[Other] Security Response	Reporter:	Laura Pardo <lpardo>
Component:	vulnerability	Assignee:	Red Hat Product Security <security-response-team>
Status:	CLOSED ERRATA	QA Contact:
Severity:	medium	Docs Contact:
Priority:	medium
Version:	unspecified	CC:	clalancette, cpelland, dajohnso, gblomqui, gmccullo, gtanzill, hhudgeon, jfrey, jhardy, jmatthew, jprause, mo, obarenbo, rcosta, roliveri, simaishi, smallamp, tcarlin, tpapaioa, tsanders
Target Milestone:	---	Keywords:	Security
Target Release:	---
Hardware:	All
OS:	Linux
Whiteboard:
Fixed In Version:	rubyzip 1.2.2	Doc Type:	If docs needed, set a value
Doc Text:	A directory and symbolic link traversal flaw was found in the way rubyzip gem extracts zip files. An attacker, with access to a privileged application capable of extracting zip files, could use this flaw to write new files to arbitrary paths, accessible by the aforementioned privileged application.	Story Points:	---
Clone Of:		Environment:
Last Closed:	2019-06-10 10:29:38 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:	1593006, 1599941, 1599942
Bug Blocks:	1593003, 1595629

Description Laura Pardo 2018-06-19 20:19:24 UTC

A vulnerability has been found in the way developers have implemented the archive extraction of files. An arbitrary file write vulnerability, that can be achieved using a specially crafted zip archive (affects other archives as well, bzip2, tar,xz, war, cpio, 7z), that holds path traversal filenames. So when the filename gets concatenated to the target extraction directory, the final path ends up outside of the target folder. Of course if an executable or a configuration file is overwritten with a file containing malicious code, the problem can turn into an arbitrary code execution issue quite easily. This affects multiple libraries that lacks of a high level APIs that provide the archive extraction functionality.


References:
https://snyk.io/research/zip-slip-vulnerability

Comment 1 Laura Pardo 2018-06-19 20:31:41 UTC

Created rubygem-rubyzip tracking bugs for this issue:

Affects: fedora-all [bug 1593006]

Comment 8 Tomas Hoger 2018-07-11 06:20:04 UTC

Upstream bug:

https://github.com/rubyzip/rubyzip/issues/369

The issue has not been addressed upstream yet.

Comment 9 Richard Maciel Costa 2018-07-11 20:52:35 UTC

*** Bug 1595625 has been marked as a duplicate of this bug. ***

Comment 14 errata-xmlrpc 2018-11-05 13:58:24 UTC

This issue has been addressed in the following products:

  CloudForms Management Engine 5.9

Via RHSA-2018:3466 https://access.redhat.com/errata/RHSA-2018:3466