CVE-2020-27781
First published: Fri Nov 20 2020(Updated: )
User credentials can be manipulated and stolen by Native CephFS consumers of OpenStack Manila, resulting in potential privilege escalation. An Open Stack Manila user can request access to a share to an arbitrary cephx user, including existing users. The access key is retrieved via the interface drivers. Then, all users of the requesting OpenStack project can view the access key. This enables the attacker to target any resource that the user has access to. This can be done to even "admin" users, compromising the ceph administrator.
Credit: secalert@redhat.com secalert@redhat.com
| Affected Software | Affected Version | How to fix |
|---|---|---|
| redhat/ceph | <2:12.2.12-139.el7c | 2:12.2.12-139.el7c |
| redhat/ceph-ansible | <0:3.2.56-1.el7c | 0:3.2.56-1.el7c |
| redhat/cephmetrics | <0:2.0.10-1.el7c | 0:2.0.10-1.el7c |
| redhat/grafana | <0:5.2.4-3.el7c | 0:5.2.4-3.el7c |
| redhat/tcmu-runner | <0:1.4.0-3.el7c | 0:1.4.0-3.el7c |
| redhat/ceph | <2:14.2.11-95.el7c | 2:14.2.11-95.el7c |
| redhat/Ceph | <15.2.8 | 15.2.8 |
| redhat/Ceph | <14.2.16 | 14.2.16 |
| Redhat Ceph | <14.2.16 | |
| Redhat Ceph | >=15.0.0<15.2.8 | |
| Redhat Ceph | >=16.0.0<16.2.0 | |
| Redhat Ceph Storage | =2.0 | |
| Redhat Ceph Storage | =3.0 | |
| Redhat Ceph Storage | =4.0 | |
| Redhat Openshift Container Platform | =4.0 | |
| Redhat Openstack Platform | =13.0 | |
| Fedoraproject Fedora | =33 |
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Reference Links
- https://bugzilla.redhat.com/show_bug.cgi?id=1900109
- https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/ZJ7FFROL25FYRL6FMI33VRKOD74LINRP/
- https://security.gentoo.org/glsa/202105-39
- https://lists.debian.org/debian-lts-announce/2023/10/msg00034.html
- https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/ZJ7FFROL25FYRL6FMI33VRKOD74LINRP/
- https://bugzilla.redhat.com/show_bug.cgi/show_bug.cgi?id=1908864
- https://github.com/ceph/ceph/commit/1b8a634fdcd94dfb3ba650793fb1b6d09af65e05
- https://github.com/ceph/ceph/commit/7e3e4e73783a98bb07ab399438eb3aab41a6fc8b
- https://access.redhat.com/errata/RHSA-2021:0081
- https://access.redhat.com/security/cve/cve-2020-27781
- https://access.redhat.com/errata/RHSA-2021:1518
- https://www.cve.org/CVERecord?id=CVE-2020-27781 https://nvd.nist.gov/vuln/detail/CVE-2020-27781
- https://access.redhat.com/errata/RHBA-2021:0305
Parent vulnerabilities
(Appears in the following advisories)
Frequently Asked Questions
What is the vulnerability ID for this issue?
The vulnerability ID for this issue is CVE-2020-27781.
What software is affected by this vulnerability?
The affected software includes Ceph versions up to 15.2.8, 14.2.16, and 2:12.2.12-139.el7c, as well as ceph-ansible, cephmetrics, grafana, and tcmu-runner versions mentioned in the description.
What is the severity of CVE-2020-27781?
The severity of CVE-2020-27781 is high with a CVSS score of 7.1.
How can I fix CVE-2020-27781?
To fix CVE-2020-27781, update your Ceph software to version 15.2.8, 14.2.16, or 2:12.2.12-139.el7c, or apply the necessary updates for ceph-ansible, cephmetrics, grafana, and tcmu-runner as mentioned in the description.
Where can I find more information about CVE-2020-27781?
You can find more information about CVE-2020-27781 in the references: [Bugzilla](https://bugzilla.redhat.com/show_bug.cgi/show_bug.cgi?id=1908864) and [GitHub commits](https://github.com/ceph/ceph/commit/1b8a634fdcd94dfb3ba650793fb1b6d09af65e05, https://github.com/ceph/ceph/commit/7e3e4e73783a98bb07ab399438eb3aab41a6fc8b).
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