Advisory Details

December 27th, 2017

Apache Groovy MethodClosure Deserialization of Untrusted Data Remote Code Execution Vulnerability

CVE ID	CVE-2016-6814
CVSS SCORE	7.5, AV:N/AC:L/Au:N/C:P/I:P/A:P
AFFECTED VENDORS	Apache
AFFECTED PRODUCTS	Groovy
VULNERABILITY DETAILS	This vulnerability allows remote attackers to execute arbitrary code on vulnerable installations of Apache Groovy. Interaction with this library is required to exploit this vulnerability but attack vectors may vary depending on implementation. The specific flaw exists within the handling of serialized MethodClosure objects. A crafted stream of bytes, when deserialized, can result in the creation of an unsafe instance of MethodClosure. An attacker can leverage this vulnerability to execute arbitrary code under the context of the current process.
ADDITIONAL DETAILS	Apache has issued an update to correct this vulnerability. More details can be found at: http://groovy-lang.org/security.html
DISCLOSURE TIMELINE	2016-09-19 - Vulnerability reported to vendor 2017-12-27 - Coordinated public release of advisory
CREDIT	Sam Thomas of Secarma Limited

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