What is CVE-2018-1000409?

CVE-2018-1000409 is a medium-severity vulnerability in Jenkins, classified under Session Fixation. CVSS score: 5.4/10. Published 2019-01-09.

How severe is CVE-2018-1000409?

Medium severity. CVSS v3 base score is 5.4 out of 10.

Vulnerability in Jenkins

CVE-2018-1000409

A session fixation vulnerability exists in Jenkins 2.145 and earlier, LTS 2.138.1 and earlier in core/src/main/java/hudson/security/HudsonPrivateSecurityRealm.java that prevented Jenkins from invalidating the existing session and creating a new one when a user signed up for a new user account.

EPSS: 0.012 (65.5th percentile) — read the EPSS interpretation.

CVSS v3 metric

CVSS v3 base score 5.4 (Medium). Vector: CVSS:3.0/AV:N/AC:L/PR:N/UI:R/S:U/C:L/I:L/A:N.

Affected products

Jenkins
N/a — versions n/a

Weakness classification (CWE)

CWE-384 — Session Fixation

References

cve@mitre.org (VDB Entry, Third Party Advisory, vdb-entry, x_refsource_BID)
cve@mitre.org (x_refsource_CONFIRM, Vendor Advisory)

Frequently asked questions

What is CVE-2018-1000409?: CVE-2018-1000409 is a medium-severity vulnerability in Jenkins, classified under Session Fixation. CVSS score: 5.4/10. Published 2019-01-09.
How severe is CVE-2018-1000409?: Medium severity. CVSS v3 base score is 5.4 out of 10.