DEBIAN-CVE-2020-25660

Advisory lineage Upstream: 1 Downstream: 0
Upstream
CVE-2020-25660
Published: 23 Nov 2020, 22:15
Last modified:28 Apr 2026, 20:19

Vulnerability Summary

Overall Risk (default)
medium
35/100
CVSS Score
8.8 HIGH
3.1 (osv_debian)
EPSS Score
No data
KEV
Not listed
Ransomware
No reports
Public exploits
None found
Dark Web
Not detected

Timeline

23 Nov 2020, 22:15
Published
Vulnerability first disclosed
28 Apr 2026, 20:19
Last Modified
Vulnerability information updated

Description

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 Metrics

  • v3.1•HIGH•Score: 8.8CVSS:3.1/AV:A/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H

Affected Systems

  • debian•ceph

    < 14.2.15-1 | < 14.2.15-1 | < 14.2.15-1 | < 14.2.15-1

References (1)