Vulnerability Report

CVE-2020-25660

Title: Cephx authentication protocol replay vulnerability

Confidentiality, Integrity, Availability

Proof Of Concept

No public PoC currently indexed for CVE-2020-25660.

CWE Category CWE-294
Published Date Nov 23, 2020
Modified Date Nov 21, 2024
Exploit Status Not Found
Score 8.8 CVSS v3.1
Exploit Probability (EPSS)
0.19%

Vulnerability Summary

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 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.

Impacted Vendors

R
redhat 3
C
ceph_project 1

Reference Links

https://bugzilla.redhat.com/show_bug.cgi?id=1890354 https://ceph.io/community/v15-2-6-octopus-released/ https://ceph.io/releases/v14-2-14-nautilus-released/ https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/UBC4KZ44QUQENTYZPVHORGL4K2KV5V4F/ https://security.gentoo.org/glsa/202105-39 https://bugzilla.redhat.com/show_bug.cgi?id=1890354 https://ceph.io/community/v15-2-6-octopus-released/ https://ceph.io/releases/v14-2-14-nautilus-released/ https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/UBC4KZ44QUQENTYZPVHORGL4K2KV5V4F/ https://security.gentoo.org/glsa/202105-39
CVSS v3.1
Source Entity [email protected]
Severity HIGH
8.8
Attack Vector
ADJACENT_NETWORK
Complexity
LOW
Privileges
N/A
Interaction
NONE
Confidentiality
N/A
Integrity
N/A
Availability
N/A
Scope
UNCHANGED
RAW VECTOR CVSS:3.1/AV:A/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
CVSS v2.0
Source Entity [email protected]
Severity MEDIUM
5.8
Access Vector
N/A
Authentication
N/A
RAW VECTOR AV:A/AC:L/Au:N/C:P/I:P/A:P

Associated Attack Patterns (CAPEC)

Total: Patterns

CVE-2020-25660 Exploits & PoCs (Proof Of Concept)

No public PoCs found in our database for this CVE.

MODIFIED

Vulnerability data or affected products updated.

PUBLISHED

Vulnerability first announced in NVD.

Attack Vector Matrix

Access Vector ADJACENT_NETWORK
Complexity LOW
Privileges N/A
Interaction NONE
CVSS Vector String CVSS:3.1/AV:A/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H

Affected Stack

No specific products linked.