Authentication Bypass Affecting python-cephfs package, versions *


Severity

Recommended
medium

Based on Red Hat Enterprise Linux security rating.

Threat Intelligence

EPSS
0.12% (49th percentile)

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  • Snyk IDSNYK-RHEL7-PYTHONCEPHFS-4415439
  • published1 Nov 2021
  • disclosed17 Nov 2020

Introduced: 17 Nov 2020

CVE-2020-25660  (opens in a new tab)
CWE-294  (opens in a new tab)

How to fix?

There is no fixed version for RHEL:7 python-cephfs.

NVD Description

Note: Versions mentioned in the description apply only to the upstream python-cephfs package and not the python-cephfs package as distributed by RHEL. See How to fix? for RHEL:7 relevant fixed versions and status.

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 Scores

version 3.1