Bug 1488482 (CVE-2017-9805)

Summary:	CVE-2017-9805 struts: RCE attack via REST plugin with XStream handler to deserialise XML requests
Product:	[Other] Security Response	Reporter:	Adam Mariš <amaris>
Component:	vulnerability	Assignee:	Red Hat Product Security <security-response-team>
Status:	CLOSED NOTABUG	QA Contact:
Severity:	high	Docs Contact:
Priority:	high
Version:	unspecified	CC:	aileenc, bkearney, chazlett, dbhole, felias, gvarsami, hchiorea, jcoleman, jolee, jshepherd, kconner, ldimaggi, loleary, meissner, nbhumkar, nwallace, pavelp, psampaio, puntogil, rwagner, spinder, taw, tcunning, theute, thomas, tkirby, tlestach, vhalbert
Target Milestone:	---	Keywords:	Security
Target Release:	---
Hardware:	All
OS:	Linux
Whiteboard:
Fixed In Version:	struts 2.5.13	Doc Type:	If docs needed, set a value
Doc Text:	The REST Plugin in Apache Struts2 is using a XStreamHandler with an instance of XStream for deserialization without any type filtering which could lead to Remote Code Execution when deserializing XML payloads. An attacker could use this flaw to execute arbitrary code or conduct further attacks.	Story Points:	---
Clone Of:		Environment:
Last Closed:	2017-09-06 08:51:03 UTC	Type:	---
Regression:	---	Mount Type:	---
Documentation:	---	CRM:
Verified Versions:		Category:	---
oVirt Team:	---	RHEL 7.3 requirements from Atomic Host:
Cloudforms Team:	---	Target Upstream Version:
Bug Depends On:	1488487, 1488488
Bug Blocks:	1488486

Description Adam Mariš 2017-09-05 13:47:04 UTC

The REST Plugin is using a XStreamHandler with an instance of XStream for deserialization without any type filtering and this can lead to Remote Code Execution when deserializing XML payloads.

Affected versions:

Struts 2.5 - Struts 2.5.12

External References:

https://struts.apache.org/docs/s2-052.html

Comment 1 Adam Mariš 2017-09-05 14:01:34 UTC

Created struts tracking bugs for this issue:

Affects: epel-7 [bug 1488487]
Affects: fedora-all [bug 1488488]

Comment 4 Chess Hazlett 2019-09-17 19:58:40 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.