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Bug 1448753 - (CVE-2017-7492) REJECTED CVE-2017-7492 SourceProvider in RestEasy-jaxrs is vulnerable to XXE
REJECTED CVE-2017-7492 SourceProvider in RestEasy-jaxrs is vulnerable to XXE
Status: CLOSED NOTABUG
Product: Security Response
Classification: Other
Component: vulnerability (Show other bugs)
unspecified
All Linux
medium Severity medium
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Assigned To: Red Hat Product Security
impact=moderate,public=20170508,repor...
: Security
Depends On: 1448754
Blocks: 1439976 1448257
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Reported: 2017-05-07 21:55 EDT by Jason Shepherd
Modified: 2017-05-19 09:40 EDT (History)
25 users (show)

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Last Closed: 2017-05-17 20:51:45 EDT
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Description Jason Shepherd 2017-05-07 21:55:01 EDT 
RESTEasy SourceProvider unmarshals some content without XML External Entity protection. An attacker can use this flaw to launch an XXE attack on a RESTEasy endpoint which uses a wildcard mime-type of mulitpart mime-type. Its only possible to launch an attack if a mime-type of 'application/*+xml' is used specifically.
Comment 1 Jason Shepherd 2017-05-07 21:55:11 EDT 
Acknowledgments:

Name: Katerina Novotna (Red Hat)
Comment 2 Jason Shepherd 2017-05-07 21:55:29 EDT 
Created resteasy tracking bugs for this issue:

Affects: fedora-all [bug 1448754]
Comment 12 Jason Shepherd 2017-05-18 20:34:44 EDT 
Statement:

After further analysis of this issue, it was determined that the flaw was in the XML Frameworks implementation on EAP 7, not in RESTEasy.

If you use a javax.xml.transform.TransformerFactory to process a javax.xml.transform.Source instance please be aware of this outstanding issue with that functionality on EAP 7.0.x:

https://bugzilla.redhat.com/show_bug.cgi?id=1451960
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