#VU13176 Deserialization of untrusted data in XML-RPC - CVE-2016-5003

Vulnerability identifier: #VU13176

Vulnerability risk: High

CVSSv4.0: 8.9 [CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N/E:P/U:Amber]

CVE-ID: CVE-2016-5003

CWE-ID: CWE-502

Exploitation vector: Network

Exploit availability: No

Vulnerable software:
XML-RPC
Universal components / Libraries / Libraries used by multiple products

Vendor: Apache Foundation

Description

The vulnerability allows a remote attacker to execute arbitrary code on the target system.

The vulnerability exists due to improper deserialization of untrusted Java objects. A remote attacker can send a request that submits a malicious serialized Java object in an <ex:serializable> element and execute arbitrary code with elevated privileges.

Successful exploitation of this vulnerability may result in complete compromise of vulnerable system.

Mitigation
Install update from vendor's website.

Vulnerable software versions

XML-RPC: 1.2-b1 - 3.1.3

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External links
https://0ang3el.blogspot.com/2016/07/beware-of-ws-xmlrpc-library-in-your.html

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Q & A

Can this vulnerability be exploited remotely?

Yes. This vulnerability can be exploited by a remote non-authenticated attacker via the Internet.

Is there known malware, which exploits this vulnerability?

No. We are not aware of malware exploiting this vulnerability. However, proof of concept for this vulnerability is available.