CVE-2020-27781
Reported by redhat · Published December 18, 2020
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.
Fixed versions
Upgrade to a fixed version or later. Language registries are listed first, then Linux distributions, then vendor products.
| Package | Ecosystem | Fixed in |
|---|---|---|
| ceph16 | Alpine | 15.2.8-r0 |
| ceph | redhat | 16.2.0, 15.2.8, 14.2.16 |
| ceph | Ubuntu:20.04:LTS | 15.2.12-0ubuntu0.20.04.1 |
Affected products
| Vendor | Product | Versions |
|---|---|---|
| n/a | Ceph | Ceph 16.2.0 |
| alpine | ceph16 | 0 |
| n/a | Ceph | 16.2.0 |
| alpine | ceph | 0, 0 |
Timeline
- Dec 18, 2020 CVE Published
- Apr 14, 2021 EPSS Score (30 in total, the first dated here)
- Mar 6, 2026 Distribution Patch (5 in total, the first dated here)
- Mar 6, 2026 Security Advisory (9 in total, the first dated here)
- Sep 1, 2026 Coalition ESS Score
- Sep 20, 2026 CVE Updated
Query this with the API
The same record, from the CLI:
vulnetix vdb vuln CVE-2020-27781
vulnetix vdb fixes CVE-2020-27781Or with curl, using the org id and key from your account page:
curl -s -H "Authorization: ApiKey ${VULNETIX_ORG_ID}:${VULNETIX_API_KEY}" \
"https://api.vdb.vulnetix.com/v2/vuln/CVE-2020-27781/fixes/registry"The Community plan is free and allows 50 queries a day. Get a free API key · API quickstart
References
- FEDORA-2020-fcafbe7225 vendor-advisory
- GLSA-202105-39 vendor-advisory
- [debian-lts-announce] 20231023 [SECURITY] [DLA 3629-1] ceph security update mailing-list