full-disclosure - Re: XXE Injection in Spring Framework

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Date: Mon, 4 Nov 2013 11:26:02 -0800
From: "/-\\\\ndrew /\\//ady" <andrew@...eformat.com>
To: full-disclosure@...ts.grok.org.uk
Subject: Re: XXE Injection in Spring Framework

Hi,
Was Pivotal informed about these advisories and was there any collaboration from them?
The current stable is 3.2.4

Thanks,
A.


On Saturday, November 02, 2013 07:04:59 AM MustLive wrote:
> Hello!
> 
> I'll give you additional information concerning advisory XML External
> Entity (XXE) Injection in Spring Framework
> (http://securityvulns.ru/docs29758.html).
> 
> -------------------------
> Affected products:
> -------------------------
> 
> - 3.0.0 to 3.2.3 (Spring OXM & Spring MVC)
> - 4.0.0.M1 (Spring OXM)
> - 4.0.0.M1-4.0.0.M2 (Spring MVC)
> - Earlier unsupported versions may also be affected
> 
> -------------------------
> Affected vendors:
> -------------------------
> 
> Spring by Pivotal.
> 
> ----------
> Details:
> ----------
> 
> The Spring OXM wrapper doesn't disable external entity resolution when
> using the JAXB unmarshaller (SAXSource and StreamSource instances are
> vulnerable). Also Spring MVC processes user provided XML with JAXB in
> combination with a StAX XMLInputFactory without disabling external entity
> resolution.
> 
> Besides standard vectors of attacks with XXE Injection vulnerabilities
> (such as local file inclusion), which are usually mentioned in advisories,
> XXE Injection also allows to conduct attacks on other sites. And with
> using DAVOSET (DDoS attacks via other sites execution tool) it's possible
> to automate such attacks.
> 
> I wrote about such attacks in my 2012's article "Using XML External
> Entities (XXE) for attacks on other sites"
> (http://lists.webappsec.org/pipermail/websecurity_lists.webappsec.org/2012-
> August/008481.html) and 2013's "Using XXE vulnerabilities for attacks on
> other sites"
> (http://lists.webappsec.org/pipermail/websecurity_lists.webappsec.org/2013-
> August/008887.html). As I described in my articles, XXE vulnerabilities can
> be used for conducting CSRF and DoS attacks on other sites (and at using
> multiple web sites it's possible to conduct DDoS attacks). And my tool
> DAVOSET can be used for conducting such attacks via XXE vulnerabilities.
> 
> In October I released video demonstration of DAVOSET:
> http://www.youtube.com/watch?v=RKi35-f346I
> 
> So all vulnerable web applications with affected versions of Spring
> Framework can be used for attacks on other sites via XXE Injection.
> 
> Best wishes & regards,
> MustLive
> Administrator of Websecurity web site
> http://websecurity.com.ua
> 
> 
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_______________________________________________
Full-Disclosure - We believe in it.
Charter: http://lists.grok.org.uk/full-disclosure-charter.html
Hosted and sponsored by Secunia - http://secunia.com/