Vulnerability-Lookup

SUSE-SU-2020:1934-1

Vulnerability from csaf_suse - Published: 2020-07-15 13:07 - Updated: 2020-07-15 13:07

Summary

Security update for google-compute-engine

Notes

Title of the patch

Security update for google-compute-engine

Description of the patch

This update for google-compute-engine fixes the following issues: - Don't enable and start google-network-daemon.service when it's already installed (bsc#1169978) + Do not add the created user to the adm (CVE-2020-8903), docker (CVE-2020-8907), or lxd (CVE-2020-8933) groups if they exist (bsc#1173258)

Patchnames

SUSE-2020-1934,SUSE-SLE-Module-Public-Cloud-15-SP1-2020-1934,SUSE-SLE-Module-Public-Cloud-15-SP2-2020-1934

CSAF 2.0 data is provided by SUSE under the Creative Commons License 4.0 with Attribution (CC-BY-4.0).

JSON

To clipboard

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          "category": "general",
          "text": "A vulnerability in Google Cloud Platform\u0027s 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.",
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          "text": "A vulnerability in Google Cloud Platform\u0027s 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 \"docker\" group, an attacker with this role is able to run docker and mount the host OS. Within docker, it is possible to modify the host OS filesystem and modify /etc/groups to 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 \"docker\" user from the OS Login entry.",
          "title": "CVE description"
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CVE-2020-8907 (GCVE-0-2020-8907)

Vulnerability from cvelistv5 – Published: 2020-06-22 13:45 – Updated: 2024-08-04 10:12

Title

Priviged Escalation in Google Cloud Platform's Guest-OSLogin

Summary

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 "docker" group, an attacker with this role is able to run docker and mount the host OS. Within docker, it is possible to modify the host OS filesystem and modify /etc/groups to 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 "docker" user from the OS Login entry.

Severity ?

9.3 (Critical)


                        
                          CVSS:4.0/AV:L/AC:L/AT:N/PR:L/UI:N/VC:H/VI:H/VA:H/SC:H/SI:H/SA:H

CWE

CWE-276 - Incorrect Default Permissions

Assigner

Google

References

URL

Tags

	https://github.com/GoogleCloudPlatform/guest-oslo…	x_refsource_CONFIRM
	https://gitlab.com/gitlab-com/gl-security/gl-redt…	x_refsource_MISC
	https://cloud.google.com/support/bulletins/#gcp-2…	x_refsource_MISC
	http://lists.opensuse.org/opensuse-security-annou…	vendor-advisoryx_refsource_SUSE
	http://lists.opensuse.org/opensuse-security-annou…	vendor-advisoryx_refsource_SUSE

Impacted products

	Vendor	Product	Version
	Google LLC	guest-oslogin	Affected: 20190304 , < 20200507 (date) Unaffected: 20200507 (date)

Credits

Chris Moberly

Show details on NVD website

JSON

To clipboard

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CVE-2020-8903 (GCVE-0-2020-8903)

Vulnerability from cvelistv5 – Published: 2020-06-22 13:45 – Updated: 2024-08-04 10:12

Title

Priviged Escalation in Google Cloud Platform's Guest-OSLogin

Summary

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.

Severity ?

7.3 (High)


                        
                          CVSS:4.0/AV:L/AC:H/AT:N/PR:L/UI:A/VC:H/VI:H/VA:H/SC:H/SI:H/SA:H

CWE

CWE-276 - Incorrect Default Permissions

Assigner

Google

References

URL

Tags

	https://github.com/GoogleCloudPlatform/guest-oslo…	x_refsource_CONFIRM
	https://gitlab.com/gitlab-com/gl-security/gl-redt…	x_refsource_MISC
	https://cloud.google.com/support/bulletins/#gcp-2…	x_refsource_MISC
	http://lists.opensuse.org/opensuse-security-annou…	vendor-advisoryx_refsource_SUSE
	http://lists.opensuse.org/opensuse-security-annou…	vendor-advisoryx_refsource_SUSE

Impacted products

	Vendor	Product	Version
	Google LLC	guest-oslogin	Affected: 20190304 , < 20200507 (date) Unaffected: 20200507 (date)

Credits

Chris Moberly

Show details on NVD website

JSON

To clipboard

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CVE-2020-8933 (GCVE-0-2020-8933)

Vulnerability from cvelistv5 – Published: 2020-06-22 13:45 – Updated: 2024-08-04 10:12

Title

Priviged Escalation in Google Cloud Platform's Guest-OSLogin

Summary

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.

Severity ?

9.3 (Critical)


                        
                          CVSS:4.0/AV:L/AC:L/AT:N/PR:L/UI:N/VC:H/VI:H/VA:H/SC:H/SI:H/SA:H

CWE

CWE-276 - Incorrect Default Permissions

Assigner

Google

References

URL

Tags

	https://github.com/GoogleCloudPlatform/guest-oslo…	x_refsource_CONFIRM
	https://gitlab.com/gitlab-com/gl-security/gl-redt…	x_refsource_MISC
	https://cloud.google.com/support/bulletins/#gcp-2…	x_refsource_MISC
	http://lists.opensuse.org/opensuse-security-annou…	vendor-advisoryx_refsource_SUSE
	http://lists.opensuse.org/opensuse-security-annou…	vendor-advisoryx_refsource_SUSE

Impacted products

	Vendor	Product	Version
	Google LLC	guest-oslogin	Affected: 20190304 , < 20200507 (date) Unaffected: 20200507 (date)

Credits

Chris Moberly

Show details on NVD website

JSON

To clipboard

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              "refsource": "MISC",
              "url": "https://cloud.google.com/support/bulletins/#gcp-2020-008"
            },
            {
              "name": "openSUSE-SU-2020:0996",
              "refsource": "SUSE",
              "url": "http://lists.opensuse.org/opensuse-security-announce/2020-07/msg00037.html"
            },
            {
              "name": "openSUSE-SU-2020:1014",
              "refsource": "SUSE",
              "url": "http://lists.opensuse.org/opensuse-security-announce/2020-07/msg00047.html"
            }
          ]
        },
        "source": {
          "discovery": "EXTERNAL"
        }
      }
    }
  },
  "cveMetadata": {
    "assignerOrgId": "14ed7db2-1595-443d-9d34-6215bf890778",
    "assignerShortName": "Google",
    "cveId": "CVE-2020-8933",
    "datePublished": "2020-06-22T13:45:26",
    "dateReserved": "2020-02-12T00:00:00",
    "dateUpdated": "2024-08-04T10:12:10.996Z",
    "state": "PUBLISHED"
  },
  "dataType": "CVE_RECORD",
  "dataVersion": "5.1"
}

Tags

Taxonomy of the tags.

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Sightings

Author	Source	Type	Date

Nomenclature

Seen: The vulnerability was mentioned, discussed, or observed by the user.
Confirmed: The vulnerability has been validated from an analyst's perspective.
Published Proof of Concept: A public proof of concept is available for this vulnerability.
Exploited: The vulnerability was observed as exploited by the user who reported the sighting.
Patched: The vulnerability was observed as successfully patched by the user who reported the sighting.
Not exploited: The vulnerability was not observed as exploited by the user who reported the sighting.
Not confirmed: The user expressed doubt about the validity of the vulnerability.
Not patched: The vulnerability was not observed as successfully patched by the user who reported the sighting.

Detection rules are retrieved from Rulezet.

Action not permitted

SUSE-SU-2020:1934-1

CVE-2020-8907 (GCVE-0-2020-8907)

CVE-2020-8903 (GCVE-0-2020-8903)

CVE-2020-8933 (GCVE-0-2020-8933)

Tags

Sightings

Nomenclature