Spoofing attack in Docker - CVE-2020-13401

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Main Vulnerability Database Vulnerabilities #VU28556

Spoofing attack in Docker - CVE-2020-13401

Published: June 3, 2020 / Updated: April 1, 2021


Vulnerability identifier: #VU28556
CSH Severity: Medium
CVSS v4: 5.1 [CVSS:4.0/AV:A/AC:L/AT:N/PR:L/UI:N/VC:L/VI:N/VA:L/SC:N/SI:N/SA:N]
CVE-ID: CVE-2020-13401
CWE-ID: CWE-451
Exploitation vector: Adjecent network
Exploit availability: Public exploit is available

Vulnerability details

The vulnerability allows a remote attacker to perform spoofing attack.

The vulnerability exists due to incorrect processing of IPv6 router advertisements. An attacker in a container, with the CAP_NET_RAW capability, can craft IPv6 router advertisements, and consequently spoof external IPv6 hosts, obtain sensitive information, or cause a denial of service.


Affected software

Docker
Gentoo Linux
Amazon Linux AMI
Opensuse
Fedora
IBM Cloud Automation Manager
docker.io (Debian package)
docker (Alpine package)
moby-engine

How to mitigate CVE-2020-13401

Install updates from vendor's website.

Docker - update to 19.03.11
docker.io (Debian package) - addressed in versions 18.09.1+dfsg1-7.1+deb10u2, 19.03.12+dfsg1-1
docker (Alpine package) - update to 19.03.11-r0
moby-engine - addressed in versions 19.03.11-1.ce.git42e35e6.fc31, 19.03.11-1.ce.git42e35e6.fc32

Links to Public Exploits and PoC-codes

External References

Related Security Bulletins