#VU48684 Authentication bypass using an alternate path or channel in Ceph - CVE-2020-25660
Published: November 23, 2020 / Updated: November 27, 2020
Vulnerability identifier: #VU48684
Vulnerability risk: Medium
CVSSv4.0: 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
CVE-ID: CVE-2020-25660
CWE-ID: CWE-288
Exploitation vector: Adjecent network
Exploit availability:
No public exploit available
Vulnerable software:
Ceph
Ceph
Software vendor:
Red Hat Inc.
Red Hat Inc.
Description
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 updates from vendor's website.