How severe is CVE-2018-1129?

CVE-2018-1129 has a CVSS 3.x base score of 6.5, rated medium severity. It is exploitable over an adjacent network with low attack complexity, requires no privileges and no user interaction. Impact on confidentiality is none, integrity high, and availability none.

Is CVE-2018-1129 being actively exploited?

It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 2% (77th percentile), an estimate of the probability of exploitation in the next 30 days.

What products are affected by CVE-2018-1129?

CVE-2018-1129 primarily affects Redhat Ceph Storage. In total, 35 product configurations (CPEs) are listed as vulnerable; see the affected-products list for the exact versions.

How do I fix CVE-2018-1129?

Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround.

When was CVE-2018-1129 published?

CVE-2018-1129 was published on 2018-07-10 and last updated on 2026-06-17.

CVE-2018-1129

CVE-2018-1129 is a medium-severity vulnerability in Redhat Ceph Storage with a CVSS 3.x base score of 6.5. It is not currently listed as actively exploited by CISA, and its EPSS exploit-prediction score is low. The underlying weakness is classified as CWE-287.

Key facts

Severity: Medium (CVSS 3.x base score 6.5)
CVSS v2: 3.3
EPSS exploit prediction: 2% (77th percentile)
Actively exploited: Not listed in CISA KEV
Weakness: CWE-287
Affected product: Redhat Ceph Storage
Published: 2018-07-10
Last modified: 2026-06-17

Description

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.

Frequently asked questions

What is CVE-2018-1129?: 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.
How severe is CVE-2018-1129?: CVE-2018-1129 has a CVSS 3.x base score of 6.5, rated medium severity. It is exploitable over an adjacent network with low attack complexity, requires no privileges and no user interaction. Impact on confidentiality is none, integrity high, and availability none.
Is CVE-2018-1129 being actively exploited?: It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 2% (77th percentile), an estimate of the probability of exploitation in the next 30 days.
What products are affected by CVE-2018-1129?: CVE-2018-1129 primarily affects Redhat Ceph Storage. In total, 35 product configurations (CPEs) are listed as vulnerable; see the affected-products list for the exact versions.
How do I fix CVE-2018-1129?: Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround.
When was CVE-2018-1129 published?: CVE-2018-1129 was published on 2018-07-10 and last updated on 2026-06-17.

References

Affected products (35)

cpe:2.3:a:redhat:ceph_storage:1.3:*:*:*:*:*:*:*
cpe:2.3:a:redhat:ceph_storage:3:*:*:*:*:*:*:*
cpe:2.3:a:redhat:ceph_storage_mon:2:*:*:*:*:*:*:*
cpe:2.3:a:redhat:ceph_storage_mon:3:*:*:*:*:*:*:*
cpe:2.3:a:redhat:ceph_storage_osd:2:*:*:*:*:*:*:*
cpe:2.3:a:redhat:ceph_storage_osd:3:*:*:*:*:*:*:*
cpe:2.3:o:redhat:enterprise_linux:7.0:*:*:*:*:*:*:*
cpe:2.3:o:redhat:enterprise_linux_desktop:7.0:*:*:*:*:*:*:*
cpe:2.3:o:redhat:enterprise_linux_server:7.0:*:*:*:*:*:*:*
cpe:2.3:o:redhat:enterprise_linux_workstation:7.0:*:*:*:*:*:*:*
cpe:2.3:a:ceph:ceph:10.2.0:*:*:*:*:*:*:*
cpe:2.3:a:ceph:ceph:10.2.1:*:*:*:*:*:*:*
cpe:2.3:a:ceph:ceph:10.2.2:*:*:*:*:*:*:*
cpe:2.3:a:ceph:ceph:10.2.3:*:*:*:*:*:*:*
cpe:2.3:a:ceph:ceph:10.2.4:*:*:*:*:*:*:*
cpe:2.3:a:ceph:ceph:10.2.5:*:*:*:*:*:*:*
cpe:2.3:a:ceph:ceph:10.2.6:*:*:*:*:*:*:*
cpe:2.3:a:ceph:ceph:10.2.7:*:*:*:*:*:*:*
cpe:2.3:a:ceph:ceph:10.2.8:*:*:*:*:*:*:*
cpe:2.3:a:ceph:ceph:10.2.9:*:*:*:*:*:*:*
cpe:2.3:a:ceph:ceph:10.2.10:*:*:*:*:*:*:*
cpe:2.3:a:ceph:ceph:10.2.11:*:*:*:*:*:*:*
cpe:2.3:a:ceph:ceph:12.2.0:*:*:*:*:*:*:*
cpe:2.3:a:ceph:ceph:12.2.1:*:*:*:*:*:*:*
cpe:2.3:a:ceph:ceph:12.2.2:*:*:*:*:*:*:*
cpe:2.3:a:ceph:ceph:12.2.3:*:*:*:*:*:*:*
cpe:2.3:a:ceph:ceph:12.2.4:*:*:*:*:*:*:*
cpe:2.3:a:ceph:ceph:12.2.5:*:*:*:*:*:*:*
cpe:2.3:a:ceph:ceph:12.2.6:*:*:*:*:*:*:*
cpe:2.3:a:ceph:ceph:12.2.7:*:*:*:*:*:*:*
cpe:2.3:a:ceph:ceph:13.2.0:*:*:*:*:*:*:*
cpe:2.3:a:ceph:ceph:13.2.1:*:*:*:*:*:*:*
cpe:2.3:o:debian:debian_linux:8.0:*:*:*:*:*:*:*
cpe:2.3:o:debian:debian_linux:9.0:*:*:*:*:*:*:*
cpe:2.3:o:opensuse:leap:15.0:*:*:*:*:*:*:*

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