cbcvebase.
CVE-2020-25660
published 2020-11-23

CVE-2020-25660: 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…

PriorityP349high8.8CVSS 3.1
AVAACLPRNUINSUCHIHAH
EPSS
1.02%
59.6th percentile
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.

Affected

12 ranges
VendorProductVersion rangeFixed in
debianceph< ceph 14.2.15-1 (bookworm)ceph 14.2.15-1 (bookworm)
fedoraprojectfedora
linuxfoundationceph>= 0 < 15.2.7-0ubuntu0.20.04.215.2.7-0ubuntu0.20.04.2
redhatceph< 14.2.1414.2.14
redhatceph>= 0 < 14.2.15-114.2.15-1
redhatceph>= 0 < 14.2.15-114.2.15-1
redhatceph>= 0 < 14.2.15-114.2.15-1
redhatceph>= 0 < 14.2.15-114.2.15-1
redhatceph>= 15.0.0 < 15.2.615.2.6
redhatceph_storage
redhatceph_storage
redhatopenshift_container_platform

CVSS provenance

nvdv3.18.8HIGHCVSS:3.1/AV:A/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
nvdv2.05.8MEDIUMAV:A/AC:L/Au:N/C:P/I:P/A:P
osv7.5HIGH
vendor_debian7.5HIGH
vendor_redhat7.5HIGH
vendor_ubuntu7.5HIGH
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