Improper input validation in Apache Httpclient

CVE-2013-4366

http/impl/client/HttpClientBuilder.java in Apache HttpClient 4.3.x before 4.3.1 does not ensure that X509HostnameVerifier is not null, which allows attackers to have unspecified impact via vectors involving hostname verification.

Vulnerability class: Drupalgeddon 2 (CVE-2018-7600)

Published · last modified .

CVSS v3 metric

CVSS v3 base score 9.8 (Critical). Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H.

EPSS exploit prediction

EPSS: 0.033 (88.4th percentile), scored .

Low probability of exploitation in the next 30 days, but still tracked. 88th percentile — 88.4% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.

EPSS trend (30 days)EPSS over the last 30 days for CVE-2013-4366: rose from 0.022 to 0.033.

EPSS over last 30 days · oldest: 0.022 · newest: 0.033 · change: +0.011

Affected products

Weakness classification (CWE)

References

Frequently asked questions

What is CVE-2013-4366?
CVE-2013-4366 is a critical-severity vulnerability in Apache Httpclient, classified under Improper Input Validation. CVSS score: 9.8/10. Published 2017-10-30.
How severe is CVE-2013-4366?
Critical severity. CVSS v3 base score is 9.8 out of 10.