Bug 1480614 (CVE-2017-7672) - CVE-2017-7672 struts: Denial of service in built-in URLValidator
Summary: CVE-2017-7672 struts: Denial of service in built-in URLValidator
Keywords:
Status: CLOSED NOTABUG
Alias: CVE-2017-7672
Product: Security Response
Classification: Other
Component: vulnerability
Version: unspecified
Hardware: All
OS: Linux
low
low
Target Milestone: ---
Assignee: Red Hat Product Security
QA Contact:
URL:
Whiteboard:
Depends On: 1480615 1480616
Blocks:
TreeView+ depends on / blocked
 
Reported: 2017-08-11 13:41 UTC by Pedro Sampaio
Modified: 2021-02-17 01:44 UTC (History)
16 users (show)

Fixed In Version:
Clone Of:
Environment:
Last Closed: 2019-06-08 03:20:27 UTC
Embargoed:


Attachments (Terms of Use)

Description Pedro Sampaio 2017-08-11 13:41:29 UTC
A flaw was found in Apache Struts 2.5 through 2.5.10.1. If an application allows enter an URL in a form field and built-in URLValidator is used, it is possible to prepare a special URL which will be used to overload server process when performing validation of the URL.

References:

http://struts.apache.org/docs/s2-047.html
https://lists.apache.org/thread.html/3795c4dd46d9ec75f4a6eb9eca11c11edd3e796c6c1fd7b17b5dc50d@%3Cannouncements.struts.apache.org%3E

Comment 1 Pedro Sampaio 2017-08-11 13:41:44 UTC
Created struts tracking bugs for this issue:

Affects: epel-7 [bug 1480616]
Affects: fedora-all [bug 1480615]

Comment 2 gil cattaneo 2017-08-12 04:06:40 UTC
0ps ... Sorry

Comment 3 Chess Hazlett 2019-09-17 19:59:37 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.


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