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CVE-2020-25660

Status Candidate

Overview

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.

Related Files

Ubuntu Security Notice USN-4706-1
Posted Jan 28, 2021
Authored by Ubuntu | Site security.ubuntu.com

Ubuntu Security Notice 4706-1 - Olle Segerdahl found that ceph-mon and ceph-mgr daemons did not properly restrict access, resulting in gaining access to unauthorized resources. An authenticated user could use this vulnerability to modify the configuration and possibly conduct further attacks. Adam Mohammed found that Ceph Object Gateway was vulnerable to HTTP header injection via a CORS ExposeHeader tag. An attacker could use this to gain access or cause a crash. Various other issues were also addressed.

tags | advisory, web
systems | linux, ubuntu
advisories | CVE-2020-10736, CVE-2020-10753, CVE-2020-25660
MD5 | bebf402244a4c2e679e813eb9b40b74c
Red Hat Security Advisory 2021-0081-01
Posted Jan 12, 2021
Authored by Red Hat | Site access.redhat.com

Red Hat Security Advisory 2021-0081-01 - Red Hat Ceph Storage is a scalable, open, software-defined storage platform that combines the most stable version of the Ceph storage system with a Ceph management platform, deployment utilities, and support services. The ceph-ansible package provides Ansible playbooks for installing, maintaining, and upgrading Red Hat Ceph Storage. This package contains a new implementation of the original libtirpc, transport-independent RPC library for NFS-Ganesha. NFS-GANESHA is a NFS Server running in user space. It comes with various back-end modules provided as shared objects to support different file systems and name-spaces.

tags | advisory
systems | linux, redhat
advisories | CVE-2020-25660, CVE-2020-25677, CVE-2020-27781
MD5 | c068aca7baa10eb0923b7197118e8e69
Red Hat Security Advisory 2020-5325-01
Posted Dec 2, 2020
Authored by Red Hat | Site access.redhat.com

Red Hat Security Advisory 2020-5325-01 - Red Hat Ceph Storage is a scalable, open, software-defined storage platform that combines the most stable version of the Ceph storage system with a Ceph management platform, deployment utilities, and support services.

tags | advisory
systems | linux, redhat
advisories | CVE-2020-25660
MD5 | 920c159c07f49b4832f5d4b187ce1298
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