ubuntu-cve-2020-27781
Vulnerability from osv_ubuntu
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.
{
"affected": [
{
"ecosystem_specific": {
"binaries": [
{
"binary_name": "ceph",
"binary_version": "10.2.11-0ubuntu0.16.04.3+esm3"
},
{
"binary_name": "ceph-common",
"binary_version": "10.2.11-0ubuntu0.16.04.3+esm3"
},
{
"binary_name": "ceph-fs-common",
"binary_version": "10.2.11-0ubuntu0.16.04.3+esm3"
},
{
"binary_name": "ceph-fuse",
"binary_version": "10.2.11-0ubuntu0.16.04.3+esm3"
},
{
"binary_name": "ceph-mds",
"binary_version": "10.2.11-0ubuntu0.16.04.3+esm3"
},
{
"binary_name": "ceph-resource-agents",
"binary_version": "10.2.11-0ubuntu0.16.04.3+esm3"
},
{
"binary_name": "ceph-test",
"binary_version": "10.2.11-0ubuntu0.16.04.3+esm3"
},
{
"binary_name": "libcephfs-java",
"binary_version": "10.2.11-0ubuntu0.16.04.3+esm3"
},
{
"binary_name": "libcephfs-jni",
"binary_version": "10.2.11-0ubuntu0.16.04.3+esm3"
},
{
"binary_name": "libcephfs1",
"binary_version": "10.2.11-0ubuntu0.16.04.3+esm3"
},
{
"binary_name": "librados2",
"binary_version": "10.2.11-0ubuntu0.16.04.3+esm3"
},
{
"binary_name": "libradosstriper1",
"binary_version": "10.2.11-0ubuntu0.16.04.3+esm3"
},
{
"binary_name": "librbd1",
"binary_version": "10.2.11-0ubuntu0.16.04.3+esm3"
},
{
"binary_name": "librgw2",
"binary_version": "10.2.11-0ubuntu0.16.04.3+esm3"
},
{
"binary_name": "python-ceph",
"binary_version": "10.2.11-0ubuntu0.16.04.3+esm3"
},
{
"binary_name": "python-cephfs",
"binary_version": "10.2.11-0ubuntu0.16.04.3+esm3"
},
{
"binary_name": "python-rados",
"binary_version": "10.2.11-0ubuntu0.16.04.3+esm3"
},
{
"binary_name": "python-rbd",
"binary_version": "10.2.11-0ubuntu0.16.04.3+esm3"
},
{
"binary_name": "radosgw",
"binary_version": "10.2.11-0ubuntu0.16.04.3+esm3"
},
{
"binary_name": "rbd-fuse",
"binary_version": "10.2.11-0ubuntu0.16.04.3+esm3"
},
{
"binary_name": "rbd-mirror",
"binary_version": "10.2.11-0ubuntu0.16.04.3+esm3"
},
{
"binary_name": "rbd-nbd",
"binary_version": "10.2.11-0ubuntu0.16.04.3+esm3"
}
]
},
"package": {
"ecosystem": "Ubuntu:Pro:16.04:LTS",
"name": "ceph",
"purl": "pkg:deb/ubuntu/ceph@10.2.11-0ubuntu0.16.04.3+esm3?arch=source\u0026distro=esm-infra/xenial"
},
"ranges": [
{
"events": [
{
"introduced": "0"
}
],
"type": "ECOSYSTEM"
}
],
"versions": [
"0.94.3-0ubuntu2",
"0.94.5-0ubuntu1",
"9.2.0-0ubuntu3",
"9.2.0-0ubuntu4",
"9.2.0-0ubuntu5",
"9.2.0-0ubuntu6",
"10.0.2-0ubuntu1",
"10.0.3-0ubuntu1",
"10.0.5-0ubuntu1",
"10.1.0-0ubuntu1",
"10.1.1-0ubuntu1",
"10.1.2-0ubuntu1",
"10.2.0-0ubuntu0.16.04.1",
"10.2.0-0ubuntu0.16.04.2",
"10.2.2-0ubuntu0.16.04.2",
"10.2.3-0ubuntu0.16.04.2",
"10.2.5-0ubuntu0.16.04.1",
"10.2.6-0ubuntu0.16.04.1",
"10.2.7-0ubuntu0.16.04.1",
"10.2.9-0ubuntu0.16.04.1",
"10.2.10-0ubuntu0.16.04.1",
"10.2.11-0ubuntu0.16.04.1",
"10.2.11-0ubuntu0.16.04.2",
"10.2.11-0ubuntu0.16.04.3",
"10.2.11-0ubuntu0.16.04.3+esm1",
"10.2.11-0ubuntu0.16.04.3+esm2",
"10.2.11-0ubuntu0.16.04.3+esm3"
]
},
{
"ecosystem_specific": {
"availability": "No subscription required",
"binaries": [
{
"binary_name": "ceph",
"binary_version": "12.2.13-0ubuntu0.18.04.10"
},
{
"binary_name": "ceph-base",
"binary_version": "12.2.13-0ubuntu0.18.04.10"
},
{
"binary_name": "ceph-common",
"binary_version": "12.2.13-0ubuntu0.18.04.10"
},
{
"binary_name": "ceph-fuse",
"binary_version": "12.2.13-0ubuntu0.18.04.10"
},
{
"binary_name": "ceph-mds",
"binary_version": "12.2.13-0ubuntu0.18.04.10"
},
{
"binary_name": "ceph-mgr",
"binary_version": "12.2.13-0ubuntu0.18.04.10"
},
{
"binary_name": "ceph-mon",
"binary_version": "12.2.13-0ubuntu0.18.04.10"
},
{
"binary_name": "ceph-osd",
"binary_version": "12.2.13-0ubuntu0.18.04.10"
},
{
"binary_name": "ceph-resource-agents",
"binary_version": "12.2.13-0ubuntu0.18.04.10"
},
{
"binary_name": "ceph-test",
"binary_version": "12.2.13-0ubuntu0.18.04.10"
},
{
"binary_name": "libcephfs-java",
"binary_version": "12.2.13-0ubuntu0.18.04.10"
},
{
"binary_name": "libcephfs-jni",
"binary_version": "12.2.13-0ubuntu0.18.04.10"
},
{
"binary_name": "libcephfs2",
"binary_version": "12.2.13-0ubuntu0.18.04.10"
},
{
"binary_name": "librados2",
"binary_version": "12.2.13-0ubuntu0.18.04.10"
},
{
"binary_name": "libradosstriper1",
"binary_version": "12.2.13-0ubuntu0.18.04.10"
},
{
"binary_name": "librbd1",
"binary_version": "12.2.13-0ubuntu0.18.04.10"
},
{
"binary_name": "librgw2",
"binary_version": "12.2.13-0ubuntu0.18.04.10"
},
{
"binary_name": "python-ceph",
"binary_version": "12.2.13-0ubuntu0.18.04.10"
},
{
"binary_name": "python-cephfs",
"binary_version": "12.2.13-0ubuntu0.18.04.10"
},
{
"binary_name": "python-rados",
"binary_version": "12.2.13-0ubuntu0.18.04.10"
},
{
"binary_name": "python-rbd",
"binary_version": "12.2.13-0ubuntu0.18.04.10"
},
{
"binary_name": "python-rgw",
"binary_version": "12.2.13-0ubuntu0.18.04.10"
},
{
"binary_name": "python3-ceph-argparse",
"binary_version": "12.2.13-0ubuntu0.18.04.10"
},
{
"binary_name": "python3-cephfs",
"binary_version": "12.2.13-0ubuntu0.18.04.10"
},
{
"binary_name": "python3-rados",
"binary_version": "12.2.13-0ubuntu0.18.04.10"
},
{
"binary_name": "python3-rbd",
"binary_version": "12.2.13-0ubuntu0.18.04.10"
},
{
"binary_name": "python3-rgw",
"binary_version": "12.2.13-0ubuntu0.18.04.10"
},
{
"binary_name": "radosgw",
"binary_version": "12.2.13-0ubuntu0.18.04.10"
},
{
"binary_name": "rbd-fuse",
"binary_version": "12.2.13-0ubuntu0.18.04.10"
},
{
"binary_name": "rbd-mirror",
"binary_version": "12.2.13-0ubuntu0.18.04.10"
},
{
"binary_name": "rbd-nbd",
"binary_version": "12.2.13-0ubuntu0.18.04.10"
}
]
},
"package": {
"ecosystem": "Ubuntu:18.04:LTS",
"name": "ceph",
"purl": "pkg:deb/ubuntu/ceph@12.2.13-0ubuntu0.18.04.10?arch=source\u0026distro=bionic"
},
"ranges": [
{
"events": [
{
"introduced": "0"
},
{
"fixed": "12.2.13-0ubuntu0.18.04.10"
}
],
"type": "ECOSYSTEM"
}
],
"versions": [
"12.2.0-0ubuntu1",
"12.2.1-0ubuntu1",
"12.2.2-0ubuntu1",
"12.2.2-0ubuntu2",
"12.2.4-0ubuntu1",
"12.2.4-0ubuntu1.1",
"12.2.7-0ubuntu0.18.04.1",
"12.2.8-0ubuntu0.18.04.1",
"12.2.8-0ubuntu0.18.04.2",
"12.2.11-0ubuntu0.18.04.1",
"12.2.11-0ubuntu0.18.04.2",
"12.2.12-0ubuntu0.18.04.1",
"12.2.12-0ubuntu0.18.04.2",
"12.2.12-0ubuntu0.18.04.3",
"12.2.12-0ubuntu0.18.04.4",
"12.2.12-0ubuntu0.18.04.5",
"12.2.13-0ubuntu0.18.04.2",
"12.2.13-0ubuntu0.18.04.3",
"12.2.13-0ubuntu0.18.04.4",
"12.2.13-0ubuntu0.18.04.5",
"12.2.13-0ubuntu0.18.04.6",
"12.2.13-0ubuntu0.18.04.7",
"12.2.13-0ubuntu0.18.04.8"
]
},
{
"ecosystem_specific": {
"availability": "No subscription required",
"binaries": [
{
"binary_name": "ceph",
"binary_version": "15.2.12-0ubuntu0.20.04.1"
},
{
"binary_name": "ceph-base",
"binary_version": "15.2.12-0ubuntu0.20.04.1"
},
{
"binary_name": "ceph-common",
"binary_version": "15.2.12-0ubuntu0.20.04.1"
},
{
"binary_name": "ceph-fuse",
"binary_version": "15.2.12-0ubuntu0.20.04.1"
},
{
"binary_name": "ceph-immutable-object-cache",
"binary_version": "15.2.12-0ubuntu0.20.04.1"
},
{
"binary_name": "ceph-mds",
"binary_version": "15.2.12-0ubuntu0.20.04.1"
},
{
"binary_name": "ceph-mgr",
"binary_version": "15.2.12-0ubuntu0.20.04.1"
},
{
"binary_name": "ceph-mgr-cephadm",
"binary_version": "15.2.12-0ubuntu0.20.04.1"
},
{
"binary_name": "ceph-mgr-dashboard",
"binary_version": "15.2.12-0ubuntu0.20.04.1"
},
{
"binary_name": "ceph-mgr-diskprediction-cloud",
"binary_version": "15.2.12-0ubuntu0.20.04.1"
},
{
"binary_name": "ceph-mgr-diskprediction-local",
"binary_version": "15.2.12-0ubuntu0.20.04.1"
},
{
"binary_name": "ceph-mgr-k8sevents",
"binary_version": "15.2.12-0ubuntu0.20.04.1"
},
{
"binary_name": "ceph-mgr-modules-core",
"binary_version": "15.2.12-0ubuntu0.20.04.1"
},
{
"binary_name": "ceph-mgr-rook",
"binary_version": "15.2.12-0ubuntu0.20.04.1"
},
{
"binary_name": "ceph-mon",
"binary_version": "15.2.12-0ubuntu0.20.04.1"
},
{
"binary_name": "ceph-osd",
"binary_version": "15.2.12-0ubuntu0.20.04.1"
},
{
"binary_name": "ceph-resource-agents",
"binary_version": "15.2.12-0ubuntu0.20.04.1"
},
{
"binary_name": "cephadm",
"binary_version": "15.2.12-0ubuntu0.20.04.1"
},
{
"binary_name": "cephfs-shell",
"binary_version": "15.2.12-0ubuntu0.20.04.1"
},
{
"binary_name": "libcephfs-java",
"binary_version": "15.2.12-0ubuntu0.20.04.1"
},
{
"binary_name": "libcephfs-jni",
"binary_version": "15.2.12-0ubuntu0.20.04.1"
},
{
"binary_name": "libcephfs2",
"binary_version": "15.2.12-0ubuntu0.20.04.1"
},
{
"binary_name": "librados2",
"binary_version": "15.2.12-0ubuntu0.20.04.1"
},
{
"binary_name": "libradosstriper1",
"binary_version": "15.2.12-0ubuntu0.20.04.1"
},
{
"binary_name": "librbd1",
"binary_version": "15.2.12-0ubuntu0.20.04.1"
},
{
"binary_name": "librgw2",
"binary_version": "15.2.12-0ubuntu0.20.04.1"
},
{
"binary_name": "python3-ceph",
"binary_version": "15.2.12-0ubuntu0.20.04.1"
},
{
"binary_name": "python3-ceph-argparse",
"binary_version": "15.2.12-0ubuntu0.20.04.1"
},
{
"binary_name": "python3-ceph-common",
"binary_version": "15.2.12-0ubuntu0.20.04.1"
},
{
"binary_name": "python3-cephfs",
"binary_version": "15.2.12-0ubuntu0.20.04.1"
},
{
"binary_name": "python3-rados",
"binary_version": "15.2.12-0ubuntu0.20.04.1"
},
{
"binary_name": "python3-rbd",
"binary_version": "15.2.12-0ubuntu0.20.04.1"
},
{
"binary_name": "python3-rgw",
"binary_version": "15.2.12-0ubuntu0.20.04.1"
},
{
"binary_name": "radosgw",
"binary_version": "15.2.12-0ubuntu0.20.04.1"
},
{
"binary_name": "rbd-fuse",
"binary_version": "15.2.12-0ubuntu0.20.04.1"
},
{
"binary_name": "rbd-mirror",
"binary_version": "15.2.12-0ubuntu0.20.04.1"
},
{
"binary_name": "rbd-nbd",
"binary_version": "15.2.12-0ubuntu0.20.04.1"
}
]
},
"package": {
"ecosystem": "Ubuntu:20.04:LTS",
"name": "ceph",
"purl": "pkg:deb/ubuntu/ceph@15.2.12-0ubuntu0.20.04.1?arch=source\u0026distro=focal"
},
"ranges": [
{
"events": [
{
"introduced": "0"
},
{
"fixed": "15.2.12-0ubuntu0.20.04.1"
}
],
"type": "ECOSYSTEM"
}
],
"versions": [
"14.2.2-0ubuntu3",
"14.2.2-0ubuntu4",
"14.2.4-0ubuntu1",
"14.2.4-0ubuntu2",
"14.2.4-0ubuntu3",
"15.1.0-0ubuntu2",
"15.1.0-0ubuntu3",
"15.1.1-0ubuntu1",
"15.2.0-0ubuntu1",
"15.2.0-0ubuntu2",
"15.2.1-0ubuntu1",
"15.2.1-0ubuntu2",
"15.2.3-0ubuntu0.20.04.1",
"15.2.3-0ubuntu0.20.04.2",
"15.2.5-0ubuntu0.20.04.1",
"15.2.7-0ubuntu0.20.04.1",
"15.2.7-0ubuntu0.20.04.2",
"15.2.8-0ubuntu0.20.04.1",
"15.2.11-0ubuntu0.20.04.2"
]
}
],
"aliases": [],
"details": "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.",
"id": "UBUNTU-CVE-2020-27781",
"modified": "2026-04-22T07:39:36Z",
"published": "2020-12-18T21:15:00Z",
"references": [
{
"type": "REPORT",
"url": "https://ubuntu.com/security/CVE-2020-27781"
},
{
"type": "ADVISORY",
"url": "https://ubuntu.com/security/notices/USN-4998-1"
},
{
"type": "ADVISORY",
"url": "https://ubuntu.com/security/notices/USN-5128-1"
},
{
"type": "REPORT",
"url": "https://www.cve.org/CVERecord?id=CVE-2020-27781"
}
],
"related": [
"USN-4998-1",
"USN-5128-1"
],
"schema_version": "1.7.0",
"severity": [
{
"score": "CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:N",
"type": "CVSS_V3"
},
{
"score": "medium",
"type": "Ubuntu"
}
],
"upstream": [
"CVE-2020-27781"
]
}
Sightings
| Author | Source | Type | Date | Other |
|---|
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.
The approach is described in our paper Mapping CVEs to MITRE ATT&CK Techniques: A Curated Gold-Set Classifier and the Limits of LLM-Assisted Label Expansion.
Browse all ATT&CK techniques and the vulnerabilities related to each.
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