Vulnerability Details : CVE-2020-27781
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. This flaw affects Ceph versions prior to 14.2.16, 15.x prior to 15.2.8, and 16.x prior to 16.2.0.
Vulnerability category: Gain privilege
Exploit prediction scoring system (EPSS) score for CVE-2020-27781
Probability of exploitation activity in the next 30 days: 0.05%
Percentile, the proportion of vulnerabilities that are scored at or less: ~ 13 % EPSS Score History EPSS FAQ
CVSS scores for CVE-2020-27781
| Base Score | Base Severity | CVSS Vector | Exploitability Score | Impact Score | Score Source |
|---|---|---|---|---|---|
|
3.6
|
LOW | AV:L/AC:L/Au:N/C:P/I:P/A:N |
3.9
|
4.9
|
NIST |
|
7.1
|
HIGH | CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:N |
1.8
|
5.2
|
NIST |
CWE ids for CVE-2020-27781
-
The product transmits or stores authentication credentials, but it uses an insecure method that is susceptible to unauthorized interception and/or retrieval.Assigned by:
- nvd@nist.gov (Primary)
- secalert@redhat.com (Secondary)
References for CVE-2020-27781
-
https://bugzilla.redhat.com/show_bug.cgi?id=1900109
1900109 – (CVE-2020-27781) CVE-2020-27781 Ceph: User credentials can be manipulated and stolen by Native CephFS consumers of OpenStack ManilaIssue Tracking;Vendor Advisory
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https://lists.debian.org/debian-lts-announce/2023/10/msg00034.html
[SECURITY] [DLA 3629-1] ceph security update
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https://security.gentoo.org/glsa/202105-39
Ceph: Multiple vulnerabilities (GLSA 202105-39) — Gentoo securityThird Party Advisory
-
https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/ZJ7FFROL25FYRL6FMI33VRKOD74LINRP/
[SECURITY] Fedora 33 Update: ceph-15.2.8-1.fc33 - package-announce - Fedora Mailing-ListsMailing List;Third Party Advisory
Products affected by CVE-2020-27781
- cpe:2.3:a:redhat:ceph:*:*:*:*:*:*:*:*
- cpe:2.3:a:redhat:ceph:*:*:*:*:*:*:*:*
- cpe:2.3:a:redhat:ceph:*:*:*:*:*:*:*:*
- cpe:2.3:a:redhat:ceph_storage:2.0:*:*:*:*:*:*:*
- cpe:2.3:a:redhat:ceph_storage:3.0:*:*:*:*:*:*:*
- cpe:2.3:a:redhat:ceph_storage:4.0:*:*:*:*:*:*:*
- cpe:2.3:a:redhat:openstack_platform:13.0:*:*:*:*:*:*:*
- cpe:2.3:a:redhat:openshift_container_platform:4.0:*:*:*:*:*:*:*
- cpe:2.3:o:fedoraproject:fedora:33:*:*:*:*:*:*:*