Vulnerability in Fedoraproject Fedora
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.
Published · last modified .
CVSS v3 metric
CVSS v3 base score 7.1 (High). Vector: CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:N.
EPSS exploit prediction
EPSS: 0.003 (22.2th percentile), scored .
Very low probability of exploitation in the next 30 days; routine patching cadence is appropriate. 22nd percentile — 22.2% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.
EPSS over last 30 days · oldest: 0.003 · newest: 0.003 · change: -0.000
Affected products
- Fedoraproject Fedora — versions 33
- Red Hat Ceph
- Red Hat Ceph Storage — versions 2.0, 3.0, 4.0
- Red Hat Openshift Container Platform — versions 4.0
- Red Hat OpenStack Platform — versions 13.0
- Ceph — versions Ceph 16.2.0
Weakness classification (CWE)
References
- bugzilla.redhat.com/show_bug.cgi (Issue Tracking, Vendor Advisory)
- lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/… (vendor-advisory)
- security.gentoo.org/glsa/202105-39 (vendor-advisory, Third Party Advisory)
- lists.debian.org/debian-lts-announce/2023/10/msg00034.html (mailing-list)
Frequently asked questions
- What is CVE-2020-27781?
- CVE-2020-27781 is a high-severity vulnerability in Fedoraproject Fedora, classified under Insufficiently Protected Credentials. CVSS score: 7.1/10. Published 2020-12-18.
- How severe is CVE-2020-27781?
- High severity. CVSS v3 base score is 7.1 out of 10.