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.
総合評価: CVE-2020-27781 は低リスク（36.5/100）。CVSS 深刻度は高。悪用される可能性が高い（EPSS 0.31%、22 パーセンタイル） 推奨対応: 悪用情報と EPSS の推移を監視し、必要に応じて優先度を見直してください。
リスクは変動します。再評価に基づき、本ページの表示内容を更新しています。
EPSS は日次で悪用されやすさの相対度合いを推定します。パーセンタイルは採点済み CVE の中での相対位置（高いほど相対的に深刻）を示します。
| # | 日付 | 旧 EPSS スコア | 新 EPSS スコア | Δ（新 − 旧） |
|---|---|---|---|---|
| 1 | 2026-06-15 | 0.07% | 0.31% | +0.24% |
| 2 | 2025-10-28 | 0.04% | 0.07% | +0.03% |
| 3 | 2025-07-26 | — | 0.04% | — |
EPSS の全履歴 （全 10 件）
この CVE の CVSS 指標。
| ベーススコア | バージョン | 深刻度 | ベクトル | 悪用しやすさ | 影響 | スコアの出典 |
|---|---|---|---|---|---|---|
| 7.1 | 3.1 | HIGH |
|
1.8 | 5.2 | [email protected] |
| 3.6 | 2.0 | LOW |
|
3.9 | 4.9 | [email protected] |
| vendor | priority | summary | link |
|---|---|---|---|
alpine
|
high | CVE-2020-27781: 2 source package rows (ceph, ceph16); 8 state rows across 3 repos (3.17-community, 3.18-community, edge-community); fixed 4, open 4. | https://security.alpinelinux.org/vuln/CVE-2020-27781 |
debian
|
not yet assigned | CVE-2020-27781 not yet assigned priority: Debian including 1 source packages (ceph), 5 status rows across 5 suites (bookworm, bullseye, forky, sid, trixie): resolved 5. | https://security-tracker.debian.org/tracker/CVE-2020-27781 |
gentoo
|
normal | CVE-2020-27781: 1 GLSA(s) (202105-39), 1 atom(s) (sys-cluster/ceph); latest impact normal. | https://bugs.gentoo.org/buglist.cgi?quicksearch=CVE-2020-27781 |
redhat
|
high | — | https://access.redhat.com/security/cve/CVE-2020-27781 |
suse
|
high | CVE-2020-27781 severity important: SUSE including 429 source package names (0.38.1.5.8.40:librados2-15.2.8.80+g1f4b6229ca-3.13.1, 0.38.1.5.8.40:librbd1-15.2.8.80+g1f4b6229ca-3.13.1, …), 651 product×package rows across 54 product lines (Container caasp/v4/hyperkube, Container ses/6/cephcsi/cephcsi, … (54 product lines)): Fixed 460, Will Not Fix 148, Known Not Affected 43. | https://www.suse.com/security/cve/CVE-2020-27781/ |
ubuntu
|
medium | CVE-2020-27781 medium priority: Ubuntu including 1 source packages (ceph), 15 status rows across 15 suites (bionic, focal, groovy, hirsute, impish, jammy, kinetic, lunar, mantic, noble, oracular, plucky, trusty, upstream, xenial): released 13, ignored 1, not-affected 1. | https://ubuntu.com/security/CVE-2020-27781 |
| ベンダー | 製品 | バージョン | 生の CPE |
|---|---|---|---|
| redhat | ceph | < 14.2.16 | cpe:2.3:a:redhat:ceph:*:*:*:*:*:*:*:* |
| redhat | ceph | >= 15.0.0, < 15.2.8 | cpe:2.3:a:redhat:ceph:*:*:*:*:*:*:*:* |
| redhat | ceph | >= 16.0.0, < 16.2.0 | cpe:2.3:a:redhat:ceph:*:*:*:*:*:*:*:* |
| redhat | ceph_storage | 2.0 | cpe:2.3:a:redhat:ceph_storage:2.0:*:*:*:*:*:*:* |
| redhat | ceph_storage | 3.0 | cpe:2.3:a:redhat:ceph_storage:3.0:*:*:*:*:*:*:* |
| redhat | ceph_storage | 4.0 | cpe:2.3:a:redhat:ceph_storage:4.0:*:*:*:*:*:*:* |
| redhat | openshift_container_platform | 4.0 | cpe:2.3:a:redhat:openshift_container_platform:4.0:*:*:*:*:*:*:* |
| redhat | openstack_platform | 13.0 | cpe:2.3:a:redhat:openstack_platform:13.0:*:*:*:*:*:*:* |
| fedoraproject | fedora | 33 | cpe:2.3:o:fedoraproject:fedora:33:*:*:*:*:*:*:* |