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CVE-2020-15113

Improper Preservation of Permissions in etcd

HIGH
7.1
CVSS Score
Published: August 5, 2020 at 07:30 PM UTC
Updated: June 17, 2026 at 02:56 AM UTC
3 products affected across 3 vendorsFedoraEtcd:Etcd

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Severity
HIGH7.1
Exploit prediction
EPSS 0.2%

Description

In etcd before versions 3.3.23 and 3.4.10, certain directory paths are created (etcd data directory and the directory path when provided to automatically generate self-signed certificates for TLS connections with clients) with restricted access permissions (700) by using the os.MkdirAll. This function does not perform any permission checks when a given directory path exists already. A possible workaround is to ensure the directories have the desired permission (700).

Affected

Our own answer: ranges merged, affected separated from platform-only, with confidence and review flags.

Etcd:· Etcd
95%
v < 3.3.233.4.0 ≤ v < 3.4.10
Affected range stops below 3.3.23, so it looks safe — our inference, not a vendor statement
Affected range stops below 3.4.10, so it looks safe — our inference, not a vendor statement
Fedora· Fedora Projectrpm
95%
32
Etcd· Etcd Io
60%
v < 3.3.23v < 3.4.10
Affected range stops below 3.3.23, so it looks safe — our inference, not a vendor statement
Affected range stops below 3.4.10, so it looks safe — our inference, not a vendor statement

Remediation

No guide yet

No remediation guidance has been written for this CVE yet. What the record does show:

Patch and advisory references

References (2)

x_refsource_CONFIRMThird Party Advisory
Source: [email protected]
https://github.com/etcd-io/etcd/security/advisories/GHSA-chh6-ppwq-jh92
Vendor Advisoryx_refsource_FEDORA
Source: [email protected]
https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/L6B6R43Y7M3DCHWK3L3UVGE2K6WWECMP/

CVSS

7.1HIGH[email protected]
Attack Vector
LOCAL
Complexity
LOW
Privileges
LOW
User Interaction
NONE
Scope
UNCHANGED
Confidentiality
HIGH
Integrity
HIGH
Availability
NONE
Vector?

Quick Info

StatusMODIFIED
CWE
CWE-281

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