high
7.1
CWE
281 285
Advisory Published
CVE Published
Advisory Published
Updated

CVE-2020-15113: Improper Preservation of Permissions in etcd

First published: Wed Aug 05 2020(Updated: )

### Vulnerability type Access Controls ### Detail etcd creates certain directory paths (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. ### Specific Go Package Affected github.com/etcd-io/etcd/pkg/fileutil ### Workarounds Make sure these directories have the desired permit (700). ### References Find out more on this vulnerability in the [security audit report](https://github.com/etcd-io/etcd/blob/master/security/SECURITY_AUDIT.pdf) ### For more information If you have any questions or comments about this advisory: * Contact the [etcd security committee](https://github.com/etcd-io/etcd/blob/master/security/security-release-process.md#product-security-committee-psc)

Credit: security-advisories@github.com security-advisories@github.com

Affected SoftwareAffected VersionHow to fix
redhat/etcd<0:3.3.23-1.el8
0:3.3.23-1.el8
redhat/etcd<3.4.10
3.4.10
redhat/etcd<3.3.23
3.3.23
go/github.com/etcd-io/etcd<3.3.23
3.3.23
go/github.com/etcd-io/etcd>=3.4.0-rc.0<3.4.10
3.4.10
etcd<3.3.23
etcd>=3.4.0<3.4.10
Fedora=32

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Reference Links

Parent vulnerabilities

(Appears in the following advisories)

Frequently Asked Questions

  • What is CVE-2020-15113?

    CVE-2020-15113 is a vulnerability found in etcd that allows certain directory paths to be created with restricted access permissions.

  • What is the severity of CVE-2020-15113?

    CVE-2020-15113 has a severity rating of 7.1 (high).

  • Which software versions are affected by CVE-2020-15113?

    etcd versions up to and including 3.3.23 and 3.4.10 are affected by CVE-2020-15113.

  • How can CVE-2020-15113 be fixed?

    To fix CVE-2020-15113, update etcd to version 3.4.10 or apply the appropriate remedy provided by the vendor.

  • Are there any references for CVE-2020-15113?

    Yes, you can find references for CVE-2020-15113 at the following links:<ul><li><a href='https://github.com/etcd-io/etcd/security/advisories/GHSA-chh6-ppwq-jh92'>https://github.com/etcd-io/etcd/security/advisories/GHSA-chh6-ppwq-jh92</a></li><li><a href='https://bugzilla.redhat.com/show_bug.cgi/show_bug.cgi?id=1868871'>https://bugzilla.redhat.com/show_bug.cgi/show_bug.cgi?id=1868871</a></li><li><a href='https://access.redhat.com/errata/RHSA-2021:0916'>https://access.redhat.com/errata/RHSA-2021:0916</a></li></ul>

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