Vulnerability Description
A flaw was found in the Cephx authentication protocol in versions before 15.2.6 and before 14.2.14, where it does not verify Ceph clients correctly and is then vulnerable to replay attacks in Nautilus. This flaw allows an attacker with access to the Ceph cluster network to authenticate with the Ceph service via a packet sniffer and perform actions allowed by the Ceph service. This issue is a reintroduction of CVE-2018-1128, affecting the msgr2 protocol. The msgr 2 protocol is used for all communication except older clients that do not support the msgr2 protocol. The msgr1 protocol is not affected. The highest threat from this vulnerability is to confidentiality, integrity, and system availability.
CVSS Score
HIGH
Affected Products
| Vendor | Product | Versions |
|---|---|---|
| Redhat | Ceph | < 14.2.14 |
| Redhat | Ceph Storage | 2.0 |
| Redhat | Openshift Container Platform | 4.0 |
| Fedoraproject | Fedora | 33 |
Related Weaknesses (CWE)
References
- https://bugzilla.redhat.com/show_bug.cgi?id=1890354Issue TrackingThird Party Advisory
- https://ceph.io/community/v15-2-6-octopus-released/Release NotesVendor Advisory
- https://ceph.io/releases/v14-2-14-nautilus-released/Release NotesVendor Advisory
- https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedorapro
- https://security.gentoo.org/glsa/202105-39Third Party Advisory
- https://bugzilla.redhat.com/show_bug.cgi?id=1890354Issue TrackingThird Party Advisory
- https://ceph.io/community/v15-2-6-octopus-released/Release NotesVendor Advisory
- https://ceph.io/releases/v14-2-14-nautilus-released/Release NotesVendor Advisory
- https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedorapro
- https://security.gentoo.org/glsa/202105-39Third Party Advisory
FAQ
What is CVE-2020-25660?
CVE-2020-25660 is a vulnerability with a CVSS score of 8.8 (HIGH). A flaw was found in the Cephx authentication protocol in versions before 15.2.6 and before 14.2.14, where it does not verify Ceph clients correctly and is then vulnerable to replay attacks in Nautilus...
How severe is CVE-2020-25660?
CVE-2020-25660 has been rated HIGH with a CVSS base score of 8.8/10. Review the CVSS metrics above for detailed severity breakdown.
Is there a patch for CVE-2020-25660?
Check the references section above for vendor advisories and patch information. Affected products include: Redhat Ceph, Redhat Ceph Storage, Redhat Openshift Container Platform, Fedoraproject Fedora.