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Vulnerability record · CVE-2018-1128 · published 10 July 2018

CVE-2018-1128: Redhat ceph storage authentication bypass by capture-replay vulnerability

Redhat · Ceph Storage

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.

7.5 CVSS 3.0 High EPSS 1.4% · top 29.1% CWE-294 · Authentication bypass by capture-replayCWE-287 · Improper authentication
7.5CVSS 3.0 base score, v2 5.4
1.4%EPSS exploitation probability, 30 days
NoNot in CISA KEV
10Affected product versions listed by NVD
24References
17 Jun 2026Last modified by NVD

Description

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.

CVSS:3.0/AV:A/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:H

Affected products

10 vulnerable configurations from NVD's CPE data, grouped by vendor and product.

References

LinkTags
http://lists.opensuse.org/opensuse-security-announce/2019-04/msg00100.html Third Party Advisory
http://tracker.ceph.com/issues/24836 Issue TrackingVendor Advisory
http://www.openwall.com/lists/oss-security/2020/11/17/3
http://www.openwall.com/lists/oss-security/2020/11/17/4
https://access.redhat.com/errata/RHSA-2018:2177 Third Party Advisory
https://access.redhat.com/errata/RHSA-2018:2179 Third Party Advisory
https://access.redhat.com/errata/RHSA-2018:2261 Third Party Advisory
https://access.redhat.com/errata/RHSA-2018:2274 Third Party Advisory
https://bugzilla.redhat.com/show_bug.cgi?id=1575866 Issue TrackingPatchThird Party Advisory
https://github.com/ceph/ceph/commit/5ead97120e07054d80623dada90a5cc764c28468 PatchThird Party Advisory
https://lists.debian.org/debian-lts-announce/2019/03/msg00017.html Mailing ListThird Party Advisory
https://www.debian.org/security/2018/dsa-4339 Third Party Advisory
http://lists.opensuse.org/opensuse-security-announce/2019-04/msg00100.html Third Party Advisory
http://tracker.ceph.com/issues/24836 Issue TrackingVendor Advisory
http://www.openwall.com/lists/oss-security/2020/11/17/3
http://www.openwall.com/lists/oss-security/2020/11/17/4
https://access.redhat.com/errata/RHSA-2018:2177 Third Party Advisory
https://access.redhat.com/errata/RHSA-2018:2179 Third Party Advisory
https://access.redhat.com/errata/RHSA-2018:2261 Third Party Advisory
https://access.redhat.com/errata/RHSA-2018:2274 Third Party Advisory
https://bugzilla.redhat.com/show_bug.cgi?id=1575866 Issue TrackingPatchThird Party Advisory
https://github.com/ceph/ceph/commit/5ead97120e07054d80623dada90a5cc764c28468 PatchThird Party Advisory
https://lists.debian.org/debian-lts-announce/2019/03/msg00017.html Mailing ListThird Party Advisory
https://www.debian.org/security/2018/dsa-4339 Third Party Advisory

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Source: NIST National Vulnerability Database (record CVE-2018-1128), CISA KEV, FIRST EPSS (scores of 2026-09-27). This page is refreshed as NVD updates the record.