Apache Struts 2.1.x >= 2.1.2 / 2.2.x / 2.3.x < 2.3.34 / 2.5.x < 2.5.13 Multiple Vulnerabilities (S2-050 - S2-053)
critical Nessus Plugin ID 102960
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Synopsis
A web application running on the remote host uses a Java framework that is affected by multiple vulnerabilities.Description
The version of Apache Struts running on the remote host is 2.1.x subsequent or equal to 2.1.2, 2.2.x, 2.3.x prior to 2.3.34, or 2.5.x prior to 2.5.13. It is, therefore, affected by multiple vulnerabilities:- A remote code execution vulnerability in the REST plugin. The Struts REST plugin uses an XStreamHandler with an instance of XStream for deserialization and does not perform any type filtering when deserializing XML payloads. This can allow an unauthenticated, remote attacker to execute arbitrary code in the context of the Struts REST plugin by sending a specially crafted XML payload. (CVE-2017-9805)
- A denial of service vulnerability in the XStream XML deserializer in the XStreamHandler used by the REST plugin. (CVE-2017-9793)
- A denial of service vulnerability when using URLValidator.
(CVE-2017-9804)
- A flaw exists related to 'freemarker' tags, expression literals, 'views/freemarker/FreemarkerManager.java', and forced expressions that allows arbitrary code execution.
(CVE-2017-12611)
Note that Nessus has not tested for these issues but has instead relied only on the application's self-reported version number.
Solution
Upgrade to Apache Struts version 2.3.34 or 2.5.13 or later.See Also
https://cwiki.apache.org/confluence/display/WW/Version+Notes+2.3.34
https://cwiki.apache.org/confluence/display/WW/Version+Notes+2.5.13
https://cwiki.apache.org/confluence/display/WW/S2-050
https://cwiki.apache.org/confluence/display/WW/S2-051
https://cwiki.apache.org/confluence/display/WW/S2-052
https://cwiki.apache.org/confluence/display/WW/S2-053
https://lgtm.com/blog/apache_struts_CVE-2017-9805_announcement
https://lgtm.com/blog/apache_struts_CVE-2017-9805
Plugin Details
Severity: Critical
ID: 102960
File Name: struts_2_5_13.nasl
Version: 1.20
Type: combined
Agent: windows, macosx, unix
Family: Misc.
Published: 9/5/2017
Updated: 4/11/2022
Configuration: Enable thorough checks
Supported Sensors: Nessus Agent
Risk Information
VPR
Risk Factor: Critical
Score: 9.2
CVSS v2
Risk Factor: High
Base Score: 7.5
Temporal Score: 6.2
Vector: AV:N/AC:L/Au:N/C:P/I:P/A:P
Temporal Vector: E:F/RL:OF/RC:C
CVSS Score Source: CVE-2017-12611
CVSS v3
Risk Factor: Critical
Base Score: 9.8
Temporal Score: 9.1
Vector: CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
Temporal Vector: E:F/RL:O/RC:C
Vulnerability Information
CPE: cpe:/a:apache:struts
Exploit Available: true
Exploit Ease: Exploits are available
Patch Publication Date: 9/5/2017
Vulnerability Publication Date: 9/5/2017
CISA Known Exploited Dates: 5/3/2022
Exploitable With
Core Impact
Metasploit (Apache Struts 2 REST Plugin XStream RCE)
Elliot (Apache Struts REST Plugin XStream RCE)
Reference Information
CVE: CVE-2017-9793, CVE-2017-9804, CVE-2017-9805, CVE-2017-12611