Date: Mon, 9 Nov 2015 07:58:52 +0100 From: Florian Weimer <fweimer@...hat.com> To: oss-security@...ts.openwall.com Subject: Re: Assign CVE for common-collections remote code execution on deserialisation flaw On 11/09/2015 01:36 AM, Jason Shepherd wrote: > Hello oss-esc, > > It was found that a flaw in Apache commons-collections Java library allowed remote code execution when Deserialised with Java Object Serialization. This is not a vulnerability in the library. How can this feature allow remote code execution if it does not involve any networking at all? The root cause is the incorrect use of Java deserialization. As long as you do not fix that, something else on the classpath will serve the role of Apache Commons Collections. Disabling InvokerTransformer deserialization may be a prudent hardening measure, but calling the existing behavior a vulnerability is a bit of a stretch. Florian
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