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Fencer Vulns
high 7.5

CVE-2018-1128 json

It was found that cephx authentication protocol did not verify ceph clients correctly and was vulnerable to replay attack.

published 2018-07-10 8 y ago modified 2026-06-17 4 mo ago also EUVD-2018-11772

cvss
7.5
version 3.0, NVD
cisa kev
Not listed
not in CISA's catalog
epss
1.4%
EPSS 1.4% chance of exploitation in 30 days, percentile 72%
public exploits
0
none known

Summary

It was found that cephx authentication protocol did not verify ceph clients correctly and was vulnerable to replay attack. Any attacker having access to ceph cluster network who is able to sniff packets on network can use this vulnerability to authenticate with ceph service and perform actions allowed by ceph service. Ceph branches master, mimic, luminous and jewel are believed to be vulnerable.

Patch / fix

  • ceph Debian 14, Debian 13, Debian 12 12.2.8+dfsg1-1
  • linux Debian 14, Debian 13, Debian 12 4.19.9-1

debian advisories DEBIAN-CVE-2018-1128

  • ceph ceph storage 2 2:10.2.10-28.el7cp
  • librbd1 ceph storage 2 2:10.2.10-28.el7cp
  • librgw2 ceph storage 2 2:10.2.10-28.el7cp
  • ceph-mds ceph storage 2 2:10.2.10-28.el7cp
  • ceph-mon ceph storage 2 2:10.2.10-28.el7cp
  • ceph-osd ceph storage 2 2:10.2.10-28.el7cp
  • ceph-base ceph storage 2 2:10.2.10-28.el7cp
  • ceph-fuse ceph storage 2 2:10.2.10-28.el7cp

red hat advisories RHSA-2018:2261RHSA-2018:2177

  • kernel-syms SLES for SAP 12 SP2, SLES 12 SP2-LTSS, SLES 12 SP2-BCL +2 more 4.4.121-92.109.2
  • kernel-source SLES for SAP 12 SP2, SLES 12 SP2-LTSS, SLES 12 SP2-BCL +2 more 4.4.121-92.109.2
  • kernel-default SLES for SAP 12 SP2, SLES 12 SP2-LTSS, SLES 12 SP2-BCL +3 more 4.4.121-92.109.2
  • kgraft-patch-SLE12-SP2_Update_29 SLES for SAP 12 SP2, SLES 12 SP2-LTSS, OpenStack Cloud 7 +1 more 1-3.5.2
  • ceph SLE Module for Basesystem 15 13.2.4.125+gad802694f5-3.7.2
  • kernel-azure SLE Module for Public Cloud 15 4.12.14-5.16.1
  • kernel-syms-azure SLE Module for Public Cloud 15 4.12.14-5.16.1
  • kernel-source-azure SLE Module for Public Cloud 15 4.12.14-5.16.1

suse advisories SUSE-SU-2019:1287-1SUSE-SU-2019:0586-1SUSE-SU-2018:3961-1SUSE-SU-2018:2980-1SUSE-SU-2018:2981-1SUSE-SU-2018:2862-1

  • ceph openSUSE Leap 15.0 13.2.4.125+gad802694f5-lp150.2.3.1
  • ceph-test openSUSE Leap 15.0 13.2.4.125+gad802694f5-lp150.2.3.1

opensuse advisories openSUSE-SU-2019:1284-1

Vendor advisories

What the vendors themselves say about their products: affected, fixed or not affected, and what to do.

red hat product security vex CVE-2018-1128 updated cvss 5.9

ceph: cephx protocol is vulnerable to replay attack

  • Red Hat Ceph Storage 1.3 ceph Red Hat Enterprise Linux 7 librbd1, librados2, python-rbd, ceph-common, python-rados Red Hat OpenStack Platform 13 (Queens) librbd1, librgw2, ceph-fuse, librados2, libcephfs2, python-rbd, +6 more
    affected: no fix planned “Will not fix”
  • Red Hat Ceph Storage ceph 12.2.4-30.el7cp, ceph 10.2.10-28.el7cp, librbd1 12.2.4-30.el7cp, librgw2 12.2.4-30.el7cp, ceph-mds 12.2.4-30.el7cp, ceph-mgr 12.2.4-30.el7cp, +41 more
    fixed: vendor fix RHSA-2018:2261
  • Red Hat Ceph Storage 2 for Ubuntu
    fixed: vendor fix RHSA-2018:2274
  • Red Hat Ceph Storage 3 for Ubuntu
    fixed: vendor fix RHSA-2018:2179
  • Red Hat Enterprise Linux 8 librbd1, librados2, libcephfs2, libradosstriper1
    not affected: vulnerable code not present

Red Hat CSAF VEX © Red Hat, Inc., from https://security.access.redhat.com/data/csaf/v2/vex/; changed: reduced to product statuses and remediations. CC BY 4.0 · csaf

Exploit prediction

1.39% chance of exploitation in the next 30 days, higher than 72% of all scored CVEs (FIRST EPSS, 2026-11-08).

CVSS scores

assigned by version score vector
NVD 3.0 7.5 CVSS:3.0/AV:A/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:H
NVD 2.0 5.4 AV:A/AC:M/Au:N/C:P/I:P/A:P

Affected products

  • Red Hat, Inc. ceph

Classification

Weakness
  • CWE-294 Authentication Bypass by Capture-replay
  • CWE-287 Improper Authentication

References

Sources

Fencer Vulns keeps one entry per vulnerability: the CVE id wins, then GHSA, and records that alias each other are merged, except that two CVEs always keep separate entries. The same data is available as JSON.