VDB

CVE-2020-8933

CVE-2020-8933 PUBLISHED

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.

EPSS 0.08% · 23.4th percentile

Risk Scores

EPSS Score
0.08%
23.4th percentile

Affected Products

VendorProductVersions
Ubuntu:16.04:LTSgce-compute-image-packages*, *, *
Ubuntu:20.04:LTSgce-compute-image-packages0, 20190801-0ubuntu3, 20190801-0ubuntu1
Ubuntu:14.04:LTSgce-compute-image-packages*, 0, 20160930-0ubuntu3~14.04.0
Ubuntu:18.04:LTSgce-compute-image-packages*, *, *

Exploit Intelligence

Timeline

  • Jun 22, 2020 CVE Published
  • Apr 14, 2021 EPSS Score
  • Jun 23, 2021 EPSS Score
  • Aug 24, 2021 EPSS Score
  • Oct 26, 2021 EPSS Score
  • Jan 6, 2022 EPSS Score
  • Feb 4, 2022 EPSS Score
  • Feb 28, 2022 EPSS Score
  • Apr 1, 2022 EPSS Score
  • May 1, 2022 EPSS Score
  • Jul 3, 2022 EPSS Score
  • Sep 4, 2022 EPSS Score

References

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