Bug 1671291 (CVE-2018-1296)

Summary:	CVE-2018-1296 hadoop: HDFS Permissive listXAttr Authorization
Product:	[Other] Security Response	Reporter:	Andrej Nemec <anemec>
Component:	vulnerability	Assignee:	Red Hat Product Security <security-response-team>
Status:	CLOSED ERRATA	QA Contact:
Severity:	medium	Docs Contact:
Priority:	medium
Version:	unspecified	CC:	bigdata-qe-bugs, rhs-bugs, sisharma
Target Milestone:	---	Keywords:	Security
Target Release:	---
Hardware:	All
OS:	Linux
Whiteboard:
Fixed In Version:	hadoop 2.8.4, hadoop 2.7.6, hadoop 2.9.1, hadoop 3.0.1	Doc Type:	If docs needed, set a value
Doc Text:		Story Points:	---
Clone Of:		Environment:
Last Closed:	2021-10-25 09:51:42 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:	1671292

Description Andrej Nemec 2019-01-31 10:20:39 UTC

HDFS exposes extended attribute key/value pairs during listXAttrs, verifying only path-level search access to the directory rather than path-level read permission to the referent. This affects features that store sensitive data in extended attributes, such as HDFS encryption secrets.

References:

https://seclists.org/oss-sec/2019/q1/91

Comment 1 Andrej Nemec 2019-01-31 10:21:38 UTC

Mitigation:

If a file contains sensitive data in extended attributes, users and admins need to change the permission to prevent others from listing the directory which contains the file.

Comment 2 Joshua Padman 2019-05-15 22:47:23 UTC

This vulnerability is out of security support scope for the following product:
 * Red Hat JBoss Fuse 6

Please refer to https://access.redhat.com/support/policy/updates/jboss_notes for more details.