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CVE-2018-1129

22
FAUCET Score

CVE-2018-1129 describes a medium-severity vulnerability in the cephx authentication protocol affecting Ceph branches master, mimic, luminous, and jewel, as well as products from Debian, openSUSE, and Red Hat. An attacker with access to the Ceph cluster network could bypass signature checks by altering message payloads, leading to high integrity impact without confidentiality or availability impact. There is no evidence of active exploitation, public exploit code (Metasploit, Nuclei, ExploitDB), or significant community discussion or media coverage.

Impacted Technologies

VendorProductVersion(s)CPE
1.3CPE matchmatch criteria
cpe:2.3:a:redhat:ceph_storage:1.3:*:*:*:*:*:*:*
3CPE matchmatch criteria
cpe:2.3:a:redhat:ceph_storage:3:*:*:*:*:*:*:*
2CPE matchmatch criteria
cpe:2.3:a:redhat:ceph_storage_mon:2:*:*:*:*:*:*:*
3CPE matchmatch criteria
cpe:2.3:a:redhat:ceph_storage_mon:3:*:*:*:*:*:*:*
2CPE matchmatch criteria
cpe:2.3:a:redhat:ceph_storage_osd:2:*:*:*:*:*:*:*

CVSS Data

CVSS version used by this source: 3.0

6.5MEDIUM

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

Attack Vector
ADJACENT_NETWORK
Attack Complexity
LOW
Privileges Required
NONE
User Interaction
NONE
Scope
UNCHANGED
Confidentiality Impact
NONE
Integrity Impact
HIGH
Availability Impact
NONE
Exploitability Score
2.8
Impact Score
3.6
CvssVersion
3.0

Exploit Intelligence

EPSS Score
1.90%
Probability of exploitation in next 30 days
EPSS Percentile
77.5%
Percentile rank of EPSS score among Peer Group
As of 2026-07-24
Model: v2026.06.15
This CVE's current EPSS score of 0.0190 is in the 95th percentile among its peer group of 1,801 CVEs.

Social Chatter

The average CVE in this peer group has 0.0 Twitter, 0.0 Reddit, 0.1 Bluesky, 0.0 Mastodon, and 0.1 GitHub mentions.

Media Mentions

No media coverage found for this CVE.

The average CVE in this peer group has 0.1 InfoSec Media, 0.0 Vendor Blog, and 0.0 Security Researcher mentions.

Remediation

Patch Available

Vendor Patches (19)

github_advisorypatch availablevia nvd_reference
View patch
microsoftpatch availablevia msrc
Product: 19856-17084Fixed in: 18.2.1-1
microsoftpatch availablevia msrc
Product: azl3 ceph 18.2.1-1 on Azure Linux 3.0Fixed in: 18.2.1-1
microsoftpatch availablevia msrc
Product: azl3 ceph 16.2.10-3 on Azure Linux 3.0Fixed in: 18.2.1-1
microsoftpatch availablevia msrc
Product: 16939-17084Fixed in: 18.2.1-1
microsoftpatch availablevia msrc
Product: Azure Linux 3.0 ARMFixed in: 18.2.1-1
microsoftpatch availablevia msrc
Product: 16939-16817Fixed in: 18.2.1-1
microsoftpatch availablevia msrc
Product: Azure Linux 3.0 x64Fixed in: 18.2.1-1
redhatpatch availablevia redhat_api
Product: Red Hat Ceph Storage 3 for UbuntuFixed in: ceph
View patch
redhatpatch availablevia redhat_api
Product: Red Hat Ceph Storage 2 for UbuntuFixed in: ceph
View patch
redhatpatch availablevia redhat_api
Product: Red Hat Ceph Storage 2.5Fixed in: ceph-2:10.2.10-28.el7cp
View patch
redhatpatch availablevia redhat_api
Product: Red Hat Ceph Storage 2.5Fixed in: ceph-ansible-0:3.0.39-1.el7cp
View patch
redhatpatch availablevia nvd_reference
View patch
redhatpatch availablevia redhat_api
Product: Red Hat Ceph Storage 3.0Fixed in: ceph-2:12.2.4-30.el7cp
View patch
redhatpatch availablevia redhat_api
Product: Red Hat Ceph Storage 3.0Fixed in: ceph-ansible-0:3.0.39-1.el7cp
View patch
redhatpatch availablevia redhat_api
Product: Red Hat Ceph Storage 3.0Fixed in: cephmetrics-0:1.0.1-1.el7cp
View patch
redhatpatch availablevia redhat_api
Product: Red Hat Ceph Storage 3.0Fixed in: nfs-ganesha-0:2.5.5-6.el7cp
View patch
redhatend of lifevia redhat_api
Product: Red Hat Enterprise Linux 7Fixed in: ceph-common
redhatend of lifevia redhat_api
Product: Red Hat Ceph Storage 1.3Fixed in: ceph

Vendor Advisories (3)

microsoft2024-Jun/CVE-2018-1129

CVE-2018-1129

Jun 11, 2024
microsoft2018-Jul/CVE-2018-1129Moderate

A flaw was found in the way signature calculation was handled by cephx authentication protocol. An attacker having access to ceph cluster network who is able to alter the message payload was able to bypass signature checks done by cephx protocol. Ceph branches master mimic luminous and jewel are believed to be vulnerable.

Jul 10, 2018
redhatCVE-2018-1129Moderate

ceph: cephx uses weak signatures

Jul 9, 2018

References

lists.opensuse.org / opensuse-security-announce/2019-04/msg00100.html
Third Party Advisory
packetstormsecurity.com / files/154245/Kernel-Live-Patch-Security-Notice-LSN-0054-1.html
access.redhat.com / errata/RHSA-2018:2177
Third Party Advisory
access.redhat.com / errata/RHSA-2018:2179
Third Party Advisory
access.redhat.com / errata/RHSA-2018:2261
Third Party Advisory
access.redhat.com / errata/RHSA-2018:2274
Third Party Advisory
bugzilla.redhat.com / show_bug.cgi
Issue TrackingPatchThird Party Advisory
github.com / ceph/ceph/commit/8f396cf35a3826044b089141667a196454c0a587
PatchThird Party Advisory
lists.debian.org / debian-lts-announce/2019/03/msg00017.html
Mailing ListThird Party Advisory
debian.org / security/2018/dsa-4339
Third Party Advisory
tracker.ceph.com / issues/24837
Issue TrackingVendor Advisory