SB2020120405 - Authentication bypass in Red Hat Ceph Storage 4

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Main Vulnerability Database SB2020120405

SB2020120405 - Authentication bypass in Red Hat Ceph Storage 4

Published: December 4, 2020

Security Bulletin ID SB2020120405
CSH Severity
Medium
Patch available
YES
Number of vulnerabilities 1
Exploitation vector Adjecent network
Highest impact Data manipulation

Breakdown by Severity

Medium 100%
  • Low
  • Medium
  • High
  • Critical

Description

This security bulletin contains information about 1 vulnerability.


1) Authentication bypass using an alternate path or channel (CVE-ID: CVE-2020-25660)

CWE-ID: CWE-288 - Authentication Bypass Using an Alternate Path or Channel

CVSSv4: CVSS:4.0/AV:A/AC:L/AT:N/PR:N/UI:N/VC:L/VI:L/VA:N/SC:N/SI:N/SA:N/E:U/U:Green


The vulnerability allows a remote attacker to bypass authentication process.

The vulnerability exists with in the implementation of the Cephx authentication protocol. A remote attacker with access to the Ceph cluster network can intercept authentication packets and perform  replay attacks in Nautilus.

The vulnerability affects msgr2 protocol only and is basically a reintroduction of previously patched vulnerability #VU14542.


Remediation

Install update from vendor's website.

References