CVE-2018-16886
Etcd Improper Authentication Vulnerability
Description
etcd versions 3.2.x before 3.2.26 and 3.3.x before 3.3.11 are vulnerable to an improper authentication issue when role-based access control (RBAC) is used and client-cert-auth is enabled. If an etcd client server TLS certificate contains a Common Name (CN) which matches a valid RBAC username, a remote attacker may authenticate as that user with any valid (trusted) client certificate in a REST API request to the gRPC-gateway.
INFO
Published Date :
Jan. 14, 2019, 7:29 p.m.
Last Modified :
Nov. 7, 2023, 2:53 a.m.
Source :
[email protected]
Remotely Exploitable :
Yes !
Impact Score :
5.9
Exploitability Score :
2.2
Public PoC/Exploit Available at Github
CVE-2018-16886 has a 1 public PoC/Exploit available at Github.
Go to the Public Exploits tab to see the list.
Affected Products
The following products are affected by CVE-2018-16886
vulnerability.
Even if cvefeed.io is aware of the exact versions of the
products
that
are
affected, the information is not represented in the table below.
References to Advisories, Solutions, and Tools
Here, you will find a curated list of external links that provide in-depth
information, practical solutions, and valuable tools related to
CVE-2018-16886.
We scan GitHub repositories to detect new proof-of-concept exploits. Following list is a collection of public exploits and proof-of-concepts, which have been published on GitHub (sorted by the most recently updated).
A tool to check for vulnerabilities in your Golang dependencies, powered by Sonatype OSS Index
hacktoberfest
Go Makefile
Results are limited to the first 15 repositories due to potential performance issues.
The following list is the news that have been mention
CVE-2018-16886 vulnerability anywhere in the article.
The following table lists the changes that have been made to the
CVE-2018-16886 vulnerability over time.
Vulnerability history details can be useful for understanding the evolution of a vulnerability, and for identifying the most recent changes that may impact the vulnerability's severity, exploitability, or other characteristics.
-
CVE Modified by [email protected]
May. 14, 2024
Action Type Old Value New Value -
CVE Modified by [email protected]
Nov. 07, 2023
Action Type Old Value New Value Added Reference Red Hat, Inc. https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/UPGYHMSKDPW5GAMI7BEP3XQRVRLLBJKS/ [No types assigned] Added Reference Red Hat, Inc. https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/JX7QTIT465BQGRGNCE74RATRQLKT2QE4/ [No types assigned] Removed Reference Red Hat, Inc. https://lists.fedoraproject.org/archives/list/[email protected]/message/UPGYHMSKDPW5GAMI7BEP3XQRVRLLBJKS/ Removed Reference Red Hat, Inc. https://lists.fedoraproject.org/archives/list/[email protected]/message/JX7QTIT465BQGRGNCE74RATRQLKT2QE4/ -
Modified Analysis by [email protected]
Oct. 24, 2019
Action Type Old Value New Value Removed CVSS V3 NIST AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:H Added CVSS V3.1 NIST AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:H Changed Reference Type https://access.redhat.com/errata/RHSA-2019:1352 No Types Assigned https://access.redhat.com/errata/RHSA-2019:1352 Third Party Advisory Changed Reference Type https://lists.fedoraproject.org/archives/list/[email protected]/message/JX7QTIT465BQGRGNCE74RATRQLKT2QE4/ No Types Assigned https://lists.fedoraproject.org/archives/list/[email protected]/message/JX7QTIT465BQGRGNCE74RATRQLKT2QE4/ Third Party Advisory Changed CPE Configuration OR *cpe:2.3:a:etcd_project:etcd:*:*:*:*:*:*:*:* versions from (including) 3.2.0 up to (excluding) 3.2.26 *cpe:2.3:a:etcd_project:etcd:*:*:*:*:*:*:*:* versions from (including) 3.3.0 up to (excluding) 3.3.11 OR *cpe:2.3:a:etcd:etcd:*:*:*:*:*:*:*:* versions from (including) 3.2.0 up to (excluding) 3.2.26 *cpe:2.3:a:etcd:etcd:*:*:*:*:*:*:*:* versions from (including) 3.3.0 up to (excluding) 3.3.11 -
CVE Modified by [email protected]
Oct. 09, 2019
Action Type Old Value New Value Added CVSS V3 Red Hat, Inc. AV:N/AC:H/PR:L/UI:N/S:U/C:H/I:H/A:N Added CWE Red Hat, Inc. CWE-287 -
CVE Modified by [email protected]
Jun. 04, 2019
Action Type Old Value New Value Added Reference https://access.redhat.com/errata/RHSA-2019:1352 [No Types Assigned] -
CVE Modified by [email protected]
May. 06, 2019
Action Type Old Value New Value Added Reference https://lists.fedoraproject.org/archives/list/[email protected]/message/JX7QTIT465BQGRGNCE74RATRQLKT2QE4/ [No Types Assigned] -
Modified Analysis by [email protected]
Apr. 23, 2019
Action Type Old Value New Value Changed Reference Type https://lists.fedoraproject.org/archives/list/[email protected]/message/UPGYHMSKDPW5GAMI7BEP3XQRVRLLBJKS/ No Types Assigned https://lists.fedoraproject.org/archives/list/[email protected]/message/UPGYHMSKDPW5GAMI7BEP3XQRVRLLBJKS/ Third Party Advisory Changed CPE Configuration OR *cpe:2.3:o:redhat:enterprise_linux_server:7.0:*:*:*:*:*:*:* OR *cpe:2.3:o:redhat:enterprise_linux_desktop:7.0:*:*:*:*:*:*:* *cpe:2.3:o:redhat:enterprise_linux_server:7.0:*:*:*:*:*:*:* *cpe:2.3:o:redhat:enterprise_linux_workstation:7.0:*:*:*:*:*:*:* Added CPE Configuration OR *cpe:2.3:o:fedoraproject:fedora:30:*:*:*:*:*:*:* -
CVE Modified by [email protected]
Apr. 15, 2019
Action Type Old Value New Value Added Reference https://lists.fedoraproject.org/archives/list/[email protected]/message/UPGYHMSKDPW5GAMI7BEP3XQRVRLLBJKS/ [No Types Assigned] -
Initial Analysis by [email protected]
Feb. 14, 2019
Action Type Old Value New Value Added CVSS V2 (AV:N/AC:M/Au:N/C:P/I:P/A:P) Added CVSS V3 AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:H Changed Reference Type http://www.securityfocus.com/bid/106540 No Types Assigned http://www.securityfocus.com/bid/106540 Third Party Advisory, VDB Entry Changed Reference Type https://github.com/etcd-io/etcd/blob/1eee465a43720d713bb69f7b7f5e120135fdb1ac/CHANGELOG-3.2.md#security-authentication No Types Assigned https://github.com/etcd-io/etcd/blob/1eee465a43720d713bb69f7b7f5e120135fdb1ac/CHANGELOG-3.2.md#security-authentication Release Notes Changed Reference Type https://bugzilla.redhat.com/show_bug.cgi?id=CVE-2018-16886 No Types Assigned https://bugzilla.redhat.com/show_bug.cgi?id=CVE-2018-16886 Issue Tracking, Patch, Third Party Advisory Changed Reference Type https://access.redhat.com/errata/RHSA-2019:0237 No Types Assigned https://access.redhat.com/errata/RHSA-2019:0237 Third Party Advisory Changed Reference Type https://github.com/etcd-io/etcd/blob/1eee465a43720d713bb69f7b7f5e120135fdb1ac/CHANGELOG-3.3.md#security-authentication No Types Assigned https://github.com/etcd-io/etcd/blob/1eee465a43720d713bb69f7b7f5e120135fdb1ac/CHANGELOG-3.3.md#security-authentication Release Notes Added CWE CWE-287 Added CPE Configuration OR *cpe:2.3:a:etcd_project:etcd:*:*:*:*:*:*:*:* versions from (including) 3.2.0 up to (excluding) 3.2.26 *cpe:2.3:a:etcd_project:etcd:*:*:*:*:*:*:*:* versions from (including) 3.3.0 up to (excluding) 3.3.11 Added CPE Configuration OR *cpe:2.3:o:redhat:enterprise_linux_server:7.0:*:*:*:*:*:*:* -
CVE Modified by [email protected]
Feb. 01, 2019
Action Type Old Value New Value Added Reference https://access.redhat.com/errata/RHSA-2019:0237 [No Types Assigned] -
CVE Modified by [email protected]
Jan. 15, 2019
Action Type Old Value New Value Added Reference http://www.securityfocus.com/bid/106540 [No Types Assigned]
CWE - Common Weakness Enumeration
While CVE identifies
specific instances of vulnerabilities, CWE categorizes the common flaws or
weaknesses that can lead to vulnerabilities. CVE-2018-16886 is
associated with the following CWEs:
Common Attack Pattern Enumeration and Classification (CAPEC)
Common Attack Pattern Enumeration and Classification
(CAPEC)
stores attack patterns, which are descriptions of the common attributes and
approaches employed by adversaries to exploit the CVE-2018-16886
weaknesses.
Exploit Prediction
EPSS is a daily estimate of the probability of exploitation activity being observed over the next 30 days.
1.45 }} -0.31%
score
0.86765
percentile