CVE-2020-8933

High

Description

A vulnerability in Google Cloud Platform's guest-oslogin versions between 20190304 and 20200507 allows a user that is only granted the role "roles/compute.osLogin" to escalate privileges to root. Using the membership to the "lxd" group, an attacker can attach host devices and filesystems. Within an lxc container, it is possible to attach the host OS filesystem and modify /etc/sudoers to then gain administrative privileges. All images created after 2020-May-07 (20200507) are fixed, and if you cannot update, we recommend you edit /etc/group/security.conf and remove the "lxd" user from the OS Login entry.

SeverityHigh
CVSS7.8
Exploit probability—
ProductGoogle Guest-oslogin
PublishedJun 22, 2020
First seenJun 22, 2020
Weakness typeCWE-276CWE-276

How to fix

Sources list no fixed version or patch link for this vulnerability.

Affected products

ProductAffected versionsFixed in
google guest-oslogin20190304.00 ≤ v ≤ 20200507.00—
opensuse leap15.1, 15.2—

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