Rapid7 Vulnerability & Exploit Database

SUSE: CVE-2020-8903: SUSE Linux Security Advisory

Free InsightVM Trial No Credit Card Necessary
Watch Demo See how it all works
Back to Search

SUSE: CVE-2020-8903: SUSE Linux Security Advisory

Severity
7
CVSS
(AV:L/AC:M/Au:N/C:C/I:C/A:C)
Published
06/22/2020
Created
07/21/2020
Added
07/19/2020
Modified
10/22/2021

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 their membership to the "adm" group, users with this role are able to read the DHCP XID from the systemd journal. Using the DHCP XID, it is then possible to set the IP address and hostname of the instance to any value, which is then stored in /etc/hosts. An attacker can then point metadata.google.internal to an arbitrary IP address and impersonate the GCE metadata server which make it is possible to instruct the OS Login PAM module to grant 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 "adm" user from the OS Login entry.

Solution(s)

  • suse-upgrade-google-compute-engine-init
  • suse-upgrade-google-compute-engine-oslogin
  • suse-upgrade-google-compute-engine-oslogin-32bit

References

  • SUSE-SU-2020:1934-1
  • SUSE-SU-2020:2200-1
  • CVE-2020-8903

insightVM

Advanced vulnerability management analytics and reporting.
Key Features
Free InsightVM Trial View All Features

With Rapid7 live dashboards, I have a clear view of all the assets on my network, which ones can be exploited, and what I need to do in order to reduce the risk in my environment in real-time. No other tool gives us that kind of value and insight.

– Scott Cheney, Manager of Information Security, Sierra View Medical Center

;