Remote code execution in Apache Struts

1) Permissions, Privileges, and Access Controls

EUVDB-ID: #VU68588

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-2014-0112

CWE-ID: CWE-264 - Permissions, Privileges, and Access Controls

Exploit availability: Yes

Description

The vulnerability allows a remote attacker to compromise the affected system.

The vulnerability exists due to improper access restrictions within the getClass method in ParametersInterceptor. A remote non-authenticated attacker can manipulate the ClassLoader via a specially crafted request and execute arbitrary code on the system.

Note, the vulnerability exists due to incomplete fix for #VU5234 (CVE-2014-0094).

Mitigation

Install updates from vendor's website.

Vulnerable software versions

Apache Struts: 2.0.0 - 2.3.16.1

CPE2.3

• cpe:2.3:a:apache_foundation:struts:2.0.0:*:*:*:*:apache_tomcat:*:*
• cpe:2.3:a:apache_foundation:struts:*:*:*:*:*:apache_tomcat:*:*
• cpe:2.3:a:apache_foundation:struts:2.0.3:*:*:*:*:apache_tomcat:*:*
• cpe:2.3:a:apache_foundation:struts:2.0.4:*:*:*:*:apache_tomcat:*:*
• cpe:2.3:a:apache_foundation:struts:2.0.5:*:*:*:*:apache_tomcat:*:*
• cpe:2.3:a:apache_foundation:struts:2.0.8:*:*:*:*:apache_tomcat:*:*
• cpe:2.3:a:apache_foundation:struts:2.0.9:*:*:*:*:apache_tomcat:*:*

External links

https://jvn.jp/en/jp/JVN19294237/index.html
https://jvndb.jvn.jp/jvndb/JVNDB-2014-000045
https://packetstormsecurity.com/files/127215/VMware-Security-Advisory-2014-0007.html
https://secunia.com/advisories/59178
https://secunia.com/advisories/59500
https://www.oracle.com/technetwork/topics/security/cpuapr2015-2365600.html
https://www.securityfocus.com/archive/1/531952/100/0/threaded
https://www.securityfocus.com/archive/1/532549/100/0/threaded
https://www.securityfocus.com/bid/67064
https://www.vmware.com/security/advisories/VMSA-2014-0007.html
https://www-01.ibm.com/support/docview.wss?uid=swg21676706
https://access.redhat.com/errata/RHSA-2019:0910
https://bugzilla.redhat.com/show_bug.cgi?id=1091939
https://cwiki.apache.org/confluence/display/WW/S2-021

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.