cbcvebase.
CVE-2016-5003
published 2017-10-27

CVE-2016-5003: The Apache XML-RPC (aka ws-xmlrpc) library 3.1.3, as used in Apache Archiva, allows remote attackers to execute arbitrary code via a crafted serialized Java…

PriorityP264critical9.8CVSS 3.0
AVNACLPRNUINSUCHIHAH
EPSS
14.88%
96.3th percentile
The Apache XML-RPC (aka ws-xmlrpc) library 3.1.3, as used in Apache Archiva, allows remote attackers to execute arbitrary code via a crafted serialized Java object in an element.

Affected

1 ranges
VendorProductVersion rangeFixed in
apachews-xmlrpc

Detection & IOCsextracted from sources · hover to see the quote

  • The attack vector is a crafted serialized Java object delivered inside an <ex:serializable> XML element in an XML-RPC request. Detection should focus on XML-RPC traffic containing the <ex:serializable> tag.
  • The vulnerability is only exploitable when the 'enabledForExtensions' server-side configuration property is set to true. Audit server configurations for this setting.
  • This CVE specifically uses the ex:serializable type in the XML-RPC payload to trigger deserialization, distinguishing it from CVE-2019-17570 which uses faultCause. Signature-based detection should look for 'ex:serializable' in XML-RPC request bodies.
  • The vulnerability can also be triggered against XMLRPC clients if they connect to a malicious/untrusted server, not just servers receiving crafted requests.
  • ·The vulnerability is only exploitable when 'enabledForExtensions' is set to true on the server. It is false by default, so default installations are not vulnerable.
  • ·Affected library version is Apache XML-RPC (ws-xmlrpc) 3.1.3. Older versions shipped with RHEL 5/6 that predate the relevant code additions may not be affected.

CVSS provenance

nvdv3.09.8CRITICALCVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
nvdv2.07.5HIGHAV:N/AC:L/Au:N/C:P/I:P/A:P
vendor_redhat9.8CRITICAL
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