Bug 1620019 (CVE-2018-11776)

Summary:	CVE-2018-11776 struts2: Using specific results and namespaces can result in a remote code execution
Product:	[Other] Security Response	Reporter:	Andrej Nemec <anemec>
Component:	vulnerability	Assignee:	Red Hat Product Security <security-response-team>
Status:	CLOSED NOTABUG	QA Contact:
Severity:	urgent	Docs Contact:
Priority:	urgent
Version:	unspecified	CC:	aileenc, chazlett, gvarsami, jcoleman, kconner, ldimaggi, nwallace, rwagner, tcunning, tkirby, yozone
Target Milestone:	---	Keywords:	Security
Target Release:	---
Hardware:	All
OS:	Linux
Whiteboard:
Fixed In Version:	struts2 2.3.35, struts2 2.5.17	Doc Type:	If docs needed, set a value
Doc Text:		Story Points:	---
Clone Of:		Environment:
Last Closed:	2018-08-22 08:29:41 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:	1637047

Description Andrej Nemec 2018-08-22 08:28:19 UTC

It is possible to perform a RCE attack when namespace value isn't set for a result defined in underlying xml configurations and in same time, its upper action(s) configurations have no or wildcard namespace. Same possibility when using url tag which doesn’t have value and action set and in same time, its upper action(s) configurations have no or wildcard namespace.

External References:

https://cwiki.apache.org/confluence/display/WW/S2-057

Comment 5 Chess Hazlett 2019-09-17 19:55:04 UTC

Statement:

A previous statement by Red Hat related to this CVE, prior to August 2019, said that Apache Struts 2 is not included in any Red Hat products. This earlier statement was incorrect. While Struts 2 is not actively compiled, shipped, used, or enabled in any Red Hat provided final products, and does not cause any vulnerability in the product, struts2-core jars have been included in some products' source code packages. The inclusion was part of an import of the Google Guice repository, which includes struts2-core. Customers that build artefacts from our source code could be at risk. Red Hat will remove these artefacts from source code in future releases.

The products that included the Struts 2 artefacts in their source jars:
Fuse Service Works 6.0.0
Single Sign On 7.3.0+

If you have used the source package from one of these products to build artefacts on your system, you should do the following to remove potentially affected jars:
1. Run 'find . -name struts2*.jar' under the source location
2. Remove any files found
This will not affect the product, as the jar is included with the source of google-guice, but no functionality requiring struts2 is implemented.