CVE-2016-8638

Name: CVE-2016-8638
Creator: NVD / NIST
Published: 2017-07-12T13:29:00.19+00:00
License: https://creativecommons.org/publicdomain/zero/1.0/

UnknownEPSS 2.12%

Last modified Jun 17, 2026

CVE-2016-8638 is a vulnerability of currently unknown severity. A vulnerability in ipsilon 2.0 before 2.0.2, 1.2 before 1.2.1, 1.1 before 1.1.2, and 1.0 before 1.0.3 was found that allows attacker to log out active sessions of other users. This issue is related to how it tracks sessions, and allows an unauthenticated attacker to view and terminate active sessions from other users. EPSS estimates a 2.12% chance of exploitation in the next 30 days.

Description

A vulnerability in ipsilon 2.0 before 2.0.2, 1.2 before 1.2.1, 1.1 before 1.1.2, and 1.0 before 1.0.3 was found that allows attacker to log out active sessions of other users. This issue is related to how it tracks sessions, and allows an unauthenticated attacker to view and terminate active sessions from other users. It is also called a "SAML2 multi-session vulnerability."

Metrics

EPSS Probability

2.12%

79.5th percentile

Probability of exploitation in the next 30 days. Learn more

Weakness Enumeration

CWE-384

Affected Software

Vendor	Product	Versions
Ipsilon Project	Ipsilon	1.0.0
Ipsilon Project	Ipsilon	1.0.1
Ipsilon Project	Ipsilon	1.0.2
Ipsilon Project	Ipsilon	1.1.0
Ipsilon Project	Ipsilon	1.1.1
Ipsilon Project	Ipsilon	1.2.0
Ipsilon Project	Ipsilon	2.0.0
Ipsilon Project	Ipsilon	2.0.1

References

http://rhn.redhat.com/errata/RHSA-2016-2809.html
http://www.securityfocus.com/bid/94439Third Party Advisory, VDB Entry
https://bugzilla.redhat.com/show_bug.cgi?id=CVE-2016-8638Issue Tracking, Third Party Advisory
https://ipsilon-project.org/advisory/CVE-2016-8638.txtVendor Advisory
https://ipsilon-project.org/release/2.1.0.html
https://pagure.io/ipsilon/c/511fa8b7001c2f9a42301aa1d4b85aaf170a461cPatch, Vendor Advisory
http://rhn.redhat.com/errata/RHSA-2016-2809.html
http://www.securityfocus.com/bid/94439Third Party Advisory, VDB Entry
https://bugzilla.redhat.com/show_bug.cgi?id=CVE-2016-8638Issue Tracking, Third Party Advisory
https://ipsilon-project.org/advisory/CVE-2016-8638.txtVendor Advisory
https://ipsilon-project.org/release/2.1.0.html
https://pagure.io/ipsilon/c/511fa8b7001c2f9a42301aa1d4b85aaf170a461cPatch, Vendor Advisory

Timeline

Published: Jul 12, 2017
Last Modified: Jun 17, 2026
Status: Modified

Frequently Asked Questions

What is CVE-2016-8638?

How severe is CVE-2016-8638?

Severity scoring for CVE-2016-8638 is pending analysis. The EPSS model estimates a 2.12% probability of exploitation in the next 30 days.

How do I fix CVE-2016-8638?

Check the vendor references and advisories linked above for patched versions and mitigation guidance. You can also run a Strix scan to test if your systems are affected.

Are you affected by CVE-2016-8638?

Run a free Strix scan to check your systems for this vulnerability.

Scan your code now

Source: NVD / NIST