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CVE-2020-15113

24
FAUCET Score

CVE-2020-15113 affects etcd versions prior to 3.3.23 and 3.4.10, where directory paths created by os.MkdirAll for etcd data or TLS certificates may retain insecure permissions if the directory already exists. This vulnerability has a CVSS score of 7.1 (High), indicating a local attack vector with low complexity, requiring low privileges, and potentially leading to high confidentiality and integrity impacts. There is no evidence of active exploitation, public exploit code (Metasploit, Nuclei, ExploitDB), or significant community discussion or media coverage surrounding this CVE.

Impacted Technologies

VendorProductVersion(s)CPE
< 3.3.23CPE matchmatch criteria
cpe:2.3:a:etcd:etcd:*:*:*:*:*:*:*:*
>= 3.4.0, < 3.4.10CPE matchmatch criteria
cpe:2.3:a:etcd:etcd:*:*:*:*:*:*:*:*
32CPE matchmatch criteria
cpe:2.3:o:fedoraproject:fedora:32:*:*:*:*:*:*:*

CVSS Data

CVSS version used by this source: 3.1

5.7MEDIUM

CVSS:3.1/AV:L/AC:H/PR:H/UI:N/S:U/C:H/I:H/A:N

Attack Vector
LOCAL
Attack Complexity
HIGH
Privileges Required
HIGH
User Interaction
NONE
Scope
UNCHANGED
Confidentiality Impact
HIGH
Integrity Impact
HIGH
Availability Impact
NONE
Exploitability Score
0.5
Impact Score
5.2
CvssVersion
3.1

Exploit Intelligence

EPSS Score
0.23%
Probability of exploitation in next 30 days
EPSS Percentile
13.6%
Percentile rank of EPSS score among Peer Group
As of 2026-07-27
Model: v2026.06.15
This CVE's current EPSS score of 0.0023 is in the 44th percentile among its peer group of 17,061 CVEs.

Social Chatter

The average CVE in this peer group has 0.0 Twitter, 0.1 Reddit, 0.2 Bluesky, 0.1 Mastodon, and 0.2 GitHub mentions.

Media Mentions

No media coverage found for this CVE.

The average CVE in this peer group has 0.3 InfoSec Media, 0.0 Vendor Blog, and 0.0 Security Researcher mentions.

Remediation

Patch Available

Vendor Patches (11)

gopatch availablevia ghsa
Product: github.com/etcd-io/etcdFixed in: 3.3.23
gopatch availablevia ghsa
Product: github.com/etcd-io/etcdFixed in: 3.4.10
microsoftpatch availablevia msrc
Product: CBL Mariner 2.0 ARMFixed in: 3.5.0-3
microsoftpatch availablevia msrc
Product: 19204-16823Fixed in: 3.5.0-3
microsoftpatch availablevia msrc
Product: cbl2 etcd 3.5.0-3 on CBL Mariner 2.0Fixed in: 3.5.0-3
microsoftpatch availablevia msrc
Product: CBL Mariner 2.0 x64Fixed in: 3.5.0-3
redhatpatch availablevia redhat_api
Product: Red Hat OpenShift Container Platform 4.8Fixed in: openshift4/ose-etcd:v4.8.0-202106152230.p0.git.aefa6bf.assembly.stream
View patch
redhatpatch availablevia redhat_api
Product: Red Hat OpenStack Platform 16.1Fixed in: etcd-0:3.3.23-1.el8ost
View patch
redhatvendor investigatingvia redhat_api
Product: Red Hat OpenStack Platform 15 (Stein)Fixed in: etcd
redhatend of lifevia redhat_api
Product: Red Hat Storage 3Fixed in: etcd
redhatend of lifevia redhat_api
Product: Red Hat Enterprise Linux 7Fixed in: etcd

Vendor Advisories (4)

goGHSA-chh6-ppwq-jh92medium

Improper Preservation of Permissions in etcd

Jan 30, 2024
microsoft2021-Dec/CVE-2020-15113

CVE-2020-15113

Dec 14, 2021
microsoft2020-Aug/CVE-2020-15113Important

Improper Preservation of Permissions in etcd

Aug 11, 2020
redhatCVE-2020-15113Moderate

etcd: directories created via os.MkdirAll are not checked for permissions

Aug 5, 2020

References

github.com / etcd-io/etcd/security/advisories/GHSA-chh6-ppwq-jh92
Third Party Advisory
lists.fedoraproject.org / archives/list/package-announce%40lists.fedoraproject.org/message/L6B6R43Y7M3DCHWK3L3UVGE2K6WWECMP