SOC status:Duty analyst on shift

UK Cyber Defence
VulnerabilityModified

CVE-2018-1327

The Apache Struts REST Plugin is using XStream library which is vulnerable and allow perform a DoS attack when using a malicious request with specially crafted XML payload.

HIGH 7.5EPSS 8.65%

Does this matter?

High impact if exploited, but EPSS currently rates exploitation as unlikely (8.65%). Schedule it in the normal patch cycle and watch for a rise in EPSS or a public exploit.

Description

The Apache Struts REST Plugin is using XStream library which is vulnerable and allow perform a DoS attack when using a malicious request with specially crafted XML payload. Upgrade to the Apache Struts version 2.5.16 and switch to an optional Jackson XML handler as described here http://struts.apache.org/plugins/rest/#custom-contenttypehandlers. Another option is to implement a custom XML handler based on the Jackson XML handler from the Apache Struts 2.5.16.

CVSS 3.0
7.5 HIGHCVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
EPSS
8.65% probability · 95th percentile
CISA KEV
Not listed
Affected
apache/struts
Source
security@apache.org

Source: NVD record, EPSS from FIRST.org, KEV from CISA. Refreshed daily.