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NVD / CVE Program· CNA redhat

CVE-2020-1759: A vulnerability was found in Red Hat Ceph Storage 4 and Red Hat Openshift Container Storage 4.2 where, A nonce reuse vulnerability was disco

Noroxi assessment

Priority: Monitor (action score 27/100)

  • The sources we track (CISA KEV, Exploit-DB, Metasploit, Nuclei, GitHub) show no public exploit code or exploitation in the wild.
  • Probability of exploitation in the next 30 days: 1.6% (FIRST EPSS); higher than 76% of all records.
  • Anyone who can reach it over the internet can trigger it. No account or password is required. A user must open a link or visit a page. Special conditions such as timing or configuration are required.
  • Fixed version: ceph (Debian:12) 14.2.9-1; ceph (openSUSE:Leap 15.1) 14.2.5.389+gb0f23ac248-lp151.2.13.1; ceph-test (openSUSE:Leap 15.1) 14.2.5.389+gb0f23ac248-lp151.2.13.1.
  • Mentioned 1 time in Turkish national cyber security advisories (siberguvenlik.gov.tr).

Low priority for now. Upgrade to ceph (Debian:12) 14.2.9-1; ceph (openSUSE:Leap 15.1) 14.2.5.389+gb0f23ac248-lp151.2.13.1; ceph-test (openSUSE:Leap 15.1) 14.2.5.389+gb0f23ac248-lp151.2.13.1 or later.

Generated automatically from the record's data: CVSS (NVD and CNA), CISA KEV and SSVC, FIRST EPSS, exploit sources, fixed versions. How we calculate it

Primary sources: NVD · CVE.org · FIRST EPSS

A vulnerability was found in Red Hat Ceph Storage 4 and Red Hat Openshift Container Storage 4.2 where, A nonce reuse vulnerability was discovered in the secure mode of the messenger v2 protocol, which can allow an attacker to forge auth tags and potentially manipulate the data by leveraging the reuse of a nonce in a session. Messages encrypted using a reused nonce value are susceptible to serious confidentiality and integrity attacks.

MediumCVSS 6.8 · v3.1—No exploit Fix available
Published
Apr 13, 2020
Updated
Jun 16, 2026
EPSS
1.6% · 76th percentile

Report tools

JSON

Action score

27

Monitor

Low priority for now.

CVSS
27 / 40 · 6.8 / 10
CISA KEV
0 / 30 · Not listed
EPSS
0 / 30 · 1.6%

CNA vs NVD score

NVD
6.8
CNA · redhat
6.4
0.4 point gap

CVSS:3.1/AV:A/AC:H/PR:N/UI:R/S:U/C:H/I:H/A:N

The score given by the assigning authority versus NVD’s independent score. A gap means the severity is contested.

Get told when this record changes

  • Not in KEV: no record of exploitation in the wild
  • No public exploit code on record
  • A fix has been released

If any of these changes, we'll tell you in the daily email digest.

Follow CVE-2020-1759

When you'll hear from us

  • when it enters CISA KEV
  • when exploit code appears or is weaponized
  • when the record is updated (including a fixed version)
  • when EPSS rises 20 points in a week

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Noroxi analysis

What does it mean in your environment?

The assessment above is generated automatically from the record's data; it doesn't know your environment. Our team verifies on your systems whether this vulnerability is actually exploitable and which mitigation is enough.

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Affected systems

Is your version affected?

Pick the product and type the version you run. It's compared with this record's version ranges in your browser; the version isn't sent anywhere.

VendorProduct
redhatceph storage
redhatopenshift
redhatopenstack
linuxfoundationceph
fedoraprojectfedora

Affected versions

NVD version ranges (for catalog products). Add the product to your stack with a version and matching uses these.

  • fedoraproject fedora31
  • linuxfoundation cephbefore 14.2.21
  • redhat ceph storage4.0
  • redhat openshift4.2
  • redhat openstack15

Versions reported by the vendor

Affected version ranges reported by the assigning authority (redhat). Independent of NVD's CPE analysis and usually ahead of it.

  • The Ceph Project ceph

    • Red Hat Ceph Storage 4, Red Hat Openshift Container Storage 4.2affected

Package-level exposure

OSV and GitHub Advisory data: ecosystem, package and range. SBOM matching uses this table.

EcosystemPackageAffected rangeFix
Debian:12cephbefore 14.2.9-114.2.9-1
openSUSE:Leap 15.1cephbefore 14.2.5.389+gb0f23ac248-lp151.2.13.114.2.5.389+gb0f23ac248-lp151.2.13.1
openSUSE:Leap 15.1ceph-testbefore 14.2.5.389+gb0f23ac248-lp151.2.13.114.2.5.389+gb0f23ac248-lp151.2.13.1
Red Hat:ceph_storage:4::el7cephbefore 2:14.2.8-111.el7cp2:14.2.8-111.el7cp
Red Hat:ceph_storage:4::el7ceph-ansiblebefore 0:4.0.31-1.el7cp0:4.0.31-1.el7cp
Red Hat:ceph_storage:4::el7ceph-basebefore 2:14.2.8-111.el7cp2:14.2.8-111.el7cp
Red Hat:ceph_storage:4::el7ceph-commonbefore 2:14.2.8-111.el7cp2:14.2.8-111.el7cp
Red Hat:ceph_storage:4::el7ceph-debuginfobefore 2:14.2.8-111.el7cp2:14.2.8-111.el7cp
Red Hat:ceph_storage:4::el7ceph-fusebefore 2:14.2.8-111.el7cp2:14.2.8-111.el7cp
Red Hat:ceph_storage:4::el7ceph-grafana-dashboardsbefore 2:14.2.8-111.el7cp2:14.2.8-111.el7cp
Red Hat:ceph_storage:4::el7ceph-mdsbefore 2:14.2.8-111.el7cp2:14.2.8-111.el7cp
Red Hat:ceph_storage:4::el7ceph-mgrbefore 2:14.2.8-111.el7cp2:14.2.8-111.el7cp
Red Hat:ceph_storage:4::el7ceph-mgr-dashboardbefore 2:14.2.8-111.el7cp2:14.2.8-111.el7cp
Red Hat:ceph_storage:4::el7ceph-mgr-diskprediction-localbefore 2:14.2.8-111.el7cp2:14.2.8-111.el7cp
Red Hat:ceph_storage:4::el7ceph-mgr-k8seventsbefore 2:14.2.8-111.el7cp2:14.2.8-111.el7cp
Red Hat:ceph_storage:4::el7ceph-mgr-rookbefore 2:14.2.8-111.el7cp2:14.2.8-111.el7cp
Red Hat:ceph_storage:4::el7ceph-monbefore 2:14.2.8-111.el7cp2:14.2.8-111.el7cp
Red Hat:ceph_storage:4::el7ceph-osdbefore 2:14.2.8-111.el7cp2:14.2.8-111.el7cp
Red Hat:ceph_storage:4::el7ceph-radosgwbefore 2:14.2.8-111.el7cp2:14.2.8-111.el7cp
Red Hat:ceph_storage:4::el7ceph-selinuxbefore 2:14.2.8-111.el7cp2:14.2.8-111.el7cp
Red Hat:ceph_storage:4::el7ceph-testbefore 2:14.2.8-111.el7cp2:14.2.8-111.el7cp
Red Hat:ceph_storage:4::el7libcephfs-develbefore 2:14.2.8-111.el7cp2:14.2.8-111.el7cp
Red Hat:ceph_storage:4::el7libcephfs2before 2:14.2.8-111.el7cp2:14.2.8-111.el7cp
Red Hat:ceph_storage:4::el7librados-develbefore 2:14.2.8-111.el7cp2:14.2.8-111.el7cp

+72

Same product

redhat: all records

Other highest-scoring records for the same primary product.

  • CVE-2016-9579A flaw was found in the way Ceph Object Gateway would process cross-origin HTTP requests if the CORS policy was set to allow origin on a buc
    31Monitor
  • CVE-2018-1128It was found that cephx authentication protocol did not verify ceph clients correctly and was vulnerable to replay attack.
    30Monitor
  • CVE-2022-3854A flaw was found in Ceph, relating to the URL processing on RGW backends.
    26Monitor

Published before and after this one in the same product

  • ← EarlierCVE-2019-19337Dec 23, 2019 · A flaw was found in Red Hat Ceph Storage version 3 in the way the Ceph RADOS Gateway daemon handles S3 requests.
    26Monitor
  • Later →CVE-2020-10753Jun 26, 2020 · A flaw was found in the Red Hat Ceph Storage RadosGW (Ceph Object Gateway).
    26Monitor
  • Later →CVE-2021-3509May 26, 2021 · A flaw was found in Red Hat Ceph Storage 4, in the Dashboard component.
    25Monitor

Remediation

Which version to upgrade to

Fix versions compiled from the vendor, package registries and Microsoft. Verify the vendor's note before upgrading.

Product / packageFixed versionSource
debian:ceph14.2.9-1 · Debian:12Package registry (OSV)
opensuse:ceph14.2.5.389+gb0f23ac248-lp151.2.13.1 · openSUSE:Leap 15.1Package registry (OSV)
opensuse:ceph-test14.2.5.389+gb0f23ac248-lp151.2.13.1 · openSUSE:Leap 15.1Package registry (OSV)
red hat:ceph2:14.2.8-111.el7cp · Red Hat:ceph_storage:4::el7Package registry (OSV)
red hat:ceph-base2:14.2.8-111.el7cp · Red Hat:ceph_storage:4::el7Package registry (OSV)
red hat:ceph-common2:14.2.8-111.el7cp · Red Hat:ceph_storage:4::el7Package registry (OSV)
red hat:ceph-debuginfo2:14.2.8-111.el7cp · Red Hat:ceph_storage:4::el7Package registry (OSV)
red hat:ceph-grafana-dashboards2:14.2.8-111.el7cp · Red Hat:ceph_storage:4::el7Package registry (OSV)
red hat:ceph-mgr2:14.2.8-111.el7cp · Red Hat:ceph_storage:4::el7Package registry (OSV)
red hat:ceph-mgr-dashboard2:14.2.8-111.el7cp · Red Hat:ceph_storage:4::el7Package registry (OSV)
red hat:ceph-mgr-diskprediction-local2:14.2.8-111.el7cp · Red Hat:ceph_storage:4::el7Package registry (OSV)
red hat:ceph-mgr-k8sevents2:14.2.8-111.el7cp · Red Hat:ceph_storage:4::el7Package registry (OSV)
red hat:ceph-mgr-rook2:14.2.8-111.el7cp · Red Hat:ceph_storage:4::el7Package registry (OSV)
red hat:ceph-mon2:14.2.8-111.el7cp · Red Hat:ceph_storage:4::el7Package registry (OSV)
red hat:ceph-selinux2:14.2.8-111.el7cp · Red Hat:ceph_storage:4::el7Package registry (OSV)
suse:ceph14.2.5.389+gb0f23ac248-3.35.2 · SUSE:Linux Enterprise Module for Basesystem 15 SP1Package registry (OSV)

Exploit status

No known public exploit

No public exploit has been observed yet. That doesn't mean you're safe, only that the bar is a little higher.

Research context

For pentesters and researchers: attack profile, score disagreement, timeline, patch commits, credits, variant and chain candidates, bug bounty scope. All derived from existing data; no exploit code.

Timeline

From publication to today: proof of concept, Metasploit module, CISA KEV and fix record. Dates are as reported by the sources.

No dated events beyond publication.

No history yet (it accumulates with the daily EPSS job).

Patch and commit links

Commit, PR and diff links among the references. A starting point for patch-diffing and variant hunting; fixes, not exploits.

No commit or PR link among the references.

Credits

All researchers

Finders, reporters and analysts named in the CNA record. Click a name for that researcher’s other records.

No credits in the CNA record.

Variant candidates

Same product, same weakness class, within 18 months. If the patch missed the root cause, the sibling bug is here.

No nightly-computed relations.

Chain candidates

An authentication bypass and a privilege-requiring bug in the same product, published close together: combined they may become an unauthenticated path.

—

Bug bounty scope

No known public program.

Source: bounty-targets-data (public HackerOne, Bugcrowd, Intigriti, YesWeHack listings).

National notice (Türkiye Cybersecurity Directorate / USOM)

Official security notices citing this record; remediation advice is on the agency's page.

All national notices →

Technical details

Attack conditions

  • Anyone who can reach it over the internet can trigger it.
  • No account or password is required.
  • A user must open a link or visit a page.
  • Special conditions such as timing or configuration are required.

If successful

Confidentiality
high · data can be read
Integrity
high · data or configuration can be modified
Availability
none
Attack vector
Network
Attack complexity
High
Privileges required
None
User interaction
Required
Scope
Unchanged
Confidentiality impact
High
Integrity impact
High
Availability impact
None

Weakness class (CWE)

CWE-323 · Reusing a Nonce, Key Pair in Encryption

CVSS vector

CVSS:3.1/AV:N/AC:H/PR:N/UI:R/S:U/C:H/I:H/A:N

nvd-primary

Attack context

MITRE CAPEC attack patterns and ATT&CK techniques for this weakness class (CWE). A starting point for detection rules and threat hunting.

MITRE has no CAPEC/ATT&CK mapping for this CWE.

Change log

  1. Fix✗ → ✓

For records you follow, these changes also arrive as notifications. →

References

Show all references (2 more)

Vendor advisories and official records. Exploit/PoC links are deliberately left out.

All records