A flaw was found in the way signature calculation was handled by cephx authentication protocol.
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.
- DLA-1715-1
- DSA-4339-1
- openSUSE-SU-2019:1284-1
- RHSA-2018:2177
- RHSA-2018:2261
- SUSE-SU-2018:1920-1
- SUSE-SU-2018:2193-1
- SUSE-SU-2018:2299-1
- SUSE-SU-2018:2478-1
- SUSE-SU-2018:2775-1
- SUSE-SU-2018:2776-1
- SUSE-SU-2018:2858-1
- SUSE-SU-2018:2862-1
- SUSE-SU-2018:2980-1
- SUSE-SU-2018:2981-1
- SUSE-SU-2018:3961-1
- SUSE-SU-2019:0586-1
- SUSE-SU-2019:1287-1
- Published
- Jul 10, 2018
- Updated
- Jun 16, 2026
- EPSS
- 1.9% · 79th percentile
- CWE
- CWE-284
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Report tools
Action score
27
Monitor
Low priority for now.
- CVSS
- 26 / 40 · 6.5 / 10
- CISA KEV
- 0 / 30 · Not listed
- EPSS
- 1 / 30 · 1.9%
Noroxi analysis
No Noroxi analysis for this record yet
We don't hand-write analysis for the hundreds of thousands of vulnerabilities in the database; that wouldn't be honest. For notable, high-impact vulnerabilities our team writes the mechanism, detection and remediation steps.
We use this product, ask for helpAffected systems
| Vendor | Product | CPE |
|---|---|---|
| ceph | ceph | cpe:2.3:a:ceph:ceph |
| redhat | ceph storage | cpe:2.3:a:redhat:ceph_storage |
| redhat | ceph storage mon | cpe:2.3:a:redhat:ceph_storage_mon |
| redhat | ceph storage osd | cpe:2.3:a:redhat:ceph_storage_osd |
| redhat | enterprise linux | cpe:2.3:o:redhat:enterprise_linux |
| redhat | enterprise linux desktop | cpe:2.3:o:redhat:enterprise_linux_desktop |
| redhat | enterprise linux server | cpe:2.3:o:redhat:enterprise_linux_server |
| redhat | enterprise linux workstation | cpe:2.3:o:redhat:enterprise_linux_workstation |
| debian | debian linux | cpe:2.3:o:debian:debian_linux |
| opensuse | leap | cpe:2.3:o:opensuse:leap |
Affected versions
NVD version ranges (for catalog products). Add the product to your stack with a version and matching uses these.
- ceph ceph10.2.0
- ceph ceph10.2.1
- ceph ceph10.2.10
- ceph ceph10.2.11
- ceph ceph10.2.2
- ceph ceph10.2.3
- ceph ceph10.2.4
- ceph ceph10.2.5
- ceph ceph10.2.6
- ceph ceph10.2.7
- ceph ceph10.2.8
- ceph ceph10.2.9
- ceph ceph12.2.0
- ceph ceph12.2.1
- ceph ceph12.2.2
- ceph ceph12.2.3
- ceph ceph12.2.4
- ceph ceph12.2.5
- ceph ceph12.2.6
- ceph ceph12.2.7
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.
Red Hat, Inc. ceph
- all versions in branches master, mimic, luminous and jewelaffected
Package-level exposure
OSV and GitHub Advisory data: ecosystem, package and range. SBOM matching uses this table.
| Ecosystem | Package | Affected range | Fix |
|---|---|---|---|
| Debian:12 | ceph | before 12.2.8+dfsg1-1 | 12.2.8+dfsg1-1 |
| Debian:12 | linux | before 4.19.9-1 | 4.19.9-1 |
| Debian:8 | linux-4.9 | before 4.9.144-3.1~deb8u1 | 4.9.144-3.1~deb8u1 |
| Debian:9 | ceph | before 10.2.11-1 | 10.2.11-1 |
| openSUSE:Leap 15.0 | ceph | before 13.2.4.125+gad802694f5-lp150.2.3.1 | 13.2.4.125+gad802694f5-lp150.2.3.1 |
| openSUSE:Leap 15.0 | ceph-test | before 13.2.4.125+gad802694f5-lp150.2.3.1 | 13.2.4.125+gad802694f5-lp150.2.3.1 |
| Red Hat:ceph_storage:2::el7 | ceph | before 2:10.2.10-28.el7cp | 2:10.2.10-28.el7cp |
| Red Hat:ceph_storage:2::el7 | ceph-base | before 2:10.2.10-28.el7cp | 2:10.2.10-28.el7cp |
| Red Hat:ceph_storage:2::el7 | ceph-common | before 2:10.2.10-28.el7cp | 2:10.2.10-28.el7cp |
| Red Hat:ceph_storage:2::el7 | ceph-debuginfo | before 2:10.2.10-28.el7cp | 2:10.2.10-28.el7cp |
| Red Hat:ceph_storage:2::el7 | ceph-fuse | before 2:10.2.10-28.el7cp | 2:10.2.10-28.el7cp |
| Red Hat:ceph_storage:2::el7 | ceph-mds | before 2:10.2.10-28.el7cp | 2:10.2.10-28.el7cp |
| Red Hat:ceph_storage:2::el7 | ceph-mon | before 2:10.2.10-28.el7cp | 2:10.2.10-28.el7cp |
| Red Hat:ceph_storage:2::el7 | ceph-osd | before 2:10.2.10-28.el7cp | 2:10.2.10-28.el7cp |
| Red Hat:ceph_storage:2::el7 | ceph-radosgw | before 2:10.2.10-28.el7cp | 2:10.2.10-28.el7cp |
| Red Hat:ceph_storage:2::el7 | ceph-selinux | before 2:10.2.10-28.el7cp | 2:10.2.10-28.el7cp |
| Red Hat:ceph_storage:2::el7 | ceph-test | before 2:10.2.10-28.el7cp | 2:10.2.10-28.el7cp |
| Red Hat:ceph_storage:2::el7 | libcephfs1 | before 2:10.2.10-28.el7cp | 2:10.2.10-28.el7cp |
| Red Hat:ceph_storage:2::el7 | libcephfs1-devel | before 2:10.2.10-28.el7cp | 2:10.2.10-28.el7cp |
| Red Hat:ceph_storage:2::el7 | librados2 | before 2:10.2.10-28.el7cp | 2:10.2.10-28.el7cp |
| Red Hat:ceph_storage:2::el7 | librados2-devel | before 2:10.2.10-28.el7cp | 2:10.2.10-28.el7cp |
| Red Hat:ceph_storage:2::el7 | librbd1 | before 2:10.2.10-28.el7cp | 2:10.2.10-28.el7cp |
| Red Hat:ceph_storage:2::el7 | librbd1-devel | before 2:10.2.10-28.el7cp | 2:10.2.10-28.el7cp |
| Red Hat:ceph_storage:2::el7 | librgw2 | before 2:10.2.10-28.el7cp | 2:10.2.10-28.el7cp |
+74
Same product
ceph: all recordsOther highest-scoring records for the same primary product.
- CVE-2026-50152Ceph Monitor subscription handler improperly authorizes config-key store reads, exposing cluster secrets to read-only users36Monitor
- CVE-2026-39944Ceph: CephX AES Authentication error35Monitor
- CVE-2025-30156Ceph: AES-CBC misuse in CephX and RADOSGW enables authentication bypass and credential forgery35Monitor
- CVE-2018-10861A flaw was found in the way ceph mon handles user requests.33Monitor
- CVE-2026-54330Ceph RGW SigV4 handler accepts unsigned x-amz-* headers on presigned requests, allowing privilege escalation32Monitor
- CVE-2024-48916Ceph is vulnerable to authentication bypass through RadosGW32Monitor
Remediation
Which version to upgrade to
Fix versions compiled from the vendor, package registries and Microsoft. Verify the vendor's note before upgrading.
| Product / package | Fixed version | Source |
|---|---|---|
| debian:ceph | 12.2.8+dfsg1-1 · Debian:12 | Package registry (OSV) |
| debian:linux | 4.19.9-1 · Debian:12 | Package registry (OSV) |
| debian:linux-4.9 | 4.9.144-3.1~deb8u1 · Debian:8 | Package registry (OSV) |
| opensuse:ceph | 13.2.4.125+gad802694f5-lp150.2.3.1 · openSUSE:Leap 15.0 | Package registry (OSV) |
| opensuse:ceph-test | 13.2.4.125+gad802694f5-lp150.2.3.1 · openSUSE:Leap 15.0 | Package registry (OSV) |
| red hat:ceph | 2:12.2.4-30.el7cp · Red Hat:ceph_storage:3::el7 | Package registry (OSV) |
| red hat:ceph-base | 2:12.2.4-30.el7cp · Red Hat:ceph_storage:3::el7 | Package registry (OSV) |
| red hat:ceph-common | 2:12.2.4-30.el7cp · Red Hat:ceph_storage:3::el7 | Package registry (OSV) |
| red hat:ceph-debuginfo | 2:12.2.4-30.el7cp · Red Hat:ceph_storage:3::el7 | Package registry (OSV) |
| red hat:ceph-mgr | 2:12.2.4-30.el7cp · Red Hat:ceph_storage:3::el7 | Package registry (OSV) |
| red hat:ceph-mon | 2:12.2.4-30.el7cp · Red Hat:ceph_storage:3::el7 | Package registry (OSV) |
| red hat:ceph-selinux | 2:12.2.4-30.el7cp · Red Hat:ceph_storage:3::el7 | Package registry (OSV) |
| red hat:ceph-test | 2:12.2.4-30.el7cp · Red Hat:ceph_storage:3::el7 | Package registry (OSV) |
| red hat:cephmetrics | 0:1.0.1-1.el7cp · Red Hat:ceph_storage:3::el7 | Package registry (OSV) |
| red hat:cephmetrics-collectors | 0:1.0.1-1.el7cp · Red Hat:ceph_storage:3::el7 | Package registry (OSV) |
| red hat:libcephfs-devel | 2:12.2.4-30.el7cp · Red Hat:ceph_storage:3::el7 | Package registry (OSV) |
| red hat:libcephfs2 | 2:12.2.4-30.el7cp · Red Hat:ceph_storage:3::el7 | Package registry (OSV) |
| suse:ceph | 12.2.5+git.1530082629.8cbf63d997-2.16.1 · SUSE:Enterprise Storage 5 | Package registry (OSV) |
| suse:ceph-test | 10.2.11+git.1531487710.3a12911a2e-12.14.2 · SUSE:Enterprise Storage 4 | Package registry (OSV) |
| suse:kernel-azure | 4.4.155-4.16.1 · SUSE:Linux Enterprise Server 12 SP3 | Package registry (OSV) |
| suse:kernel-default | 4.4.155-94.50.1 · SUSE:Linux Enterprise Desktop 12 SP3 | Package registry (OSV) |
| suse:kernel-docs | 4.4.155-94.50.1 · SUSE:Linux Enterprise Software Development Kit 12 SP3 | Package registry (OSV) |
| suse:kernel-docs-azure | 4.4.155-4.16.1 · SUSE:Linux Enterprise Software Development Kit 12 SP3 | Package registry (OSV) |
| suse:kernel-obs-build | 4.4.155-94.50.1 · SUSE:Linux Enterprise Software Development Kit 12 SP3 | Package registry (OSV) |
| suse:kernel-source | 4.4.155-94.50.1 · SUSE:Linux Enterprise Desktop 12 SP3 | Package registry (OSV) |
| suse:kernel-source-azure | 4.4.155-4.16.1 · SUSE:Linux Enterprise Server 12 SP3 | Package registry (OSV) |
| suse:kernel-syms | 4.4.155-94.50.1 · SUSE:Linux Enterprise Desktop 12 SP3 | Package registry (OSV) |
| suse:kernel-syms-azure | 4.4.155-4.16.1 · SUSE:Linux Enterprise Server 12 SP3 | Package registry (OSV) |
| suse:kgraft-patch-SLE12-SP3_Update_17 | 1-4.3.1 · SUSE:Linux Enterprise Live Patching 12 SP3 | Package 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.
FIRST EPSS daily score; only changes of 0.01 or more are recorded (step chart).
Patch and commit links
Commit, PR and diff links among the references. A starting point for patch-diffing and variant hunting; fixes, not exploits.
Credits
All researchersFinders, 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).
Technical details
Attack conditions
- Someone on the same network segment can trigger it.
- No account or password is required.
- No user action is required.
- No special conditions are required; it is repeatable.
If successful
- Confidentiality
- none
- Integrity
- high · data or configuration can be modified
- Availability
- none
- Attack vector
- Adjacent
- Attack complexity
- Low
- Privileges required
- None
- User interaction
- None
- Scope
- Unchanged
- Confidentiality impact
- None
- Integrity impact
- High
- Availability impact
- None
Weakness class (CWE)
CWE-284 · Improper Access ControlCVSS vector
CVSS:3.0/AV:A/AC:L/PR:N/UI:N/S:U/C:N/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.
Attack patterns (CAPEC)
- Embedding Scripts within ScriptsCAPEC-19likelihood: High · High
- Malicious Logic InsertionCAPEC-441likelihood: Medium · High
- Modification of Windows Service ConfigurationCAPEC-478likelihood: Low · High
- Malicious Root CertificateCAPEC-479likelihood: Low · Low
- Intent SpoofCAPEC-502
- WebView ExposureCAPEC-503
- Data Injected During ConfigurationCAPEC-536likelihood: Low · High
- Incomplete Data Deletion in a Multi-Tenant EnvironmentCAPEC-546likelihood: Low · Medium
ATT&CK techniques
- RootkitT1014
- Obfuscated Files or Information: Embedded PayloadsT1027.009
- Boot or Logon Initialization ScriptsT1037
- Taint shared contentT1080
- Server Software Component: Terminal Services DLLT1505.005
- Pre-OS Boot:BootkitT1542.003
- Create or Modify System ProcessT1543
- Create or Modify System Process: Launch AgentT1543.001
- Create or Modify System Process:Windows ServiceT1543.003
- Create or Modify System Process: Launch DaemonT1543.004
- Event Triggered Execution:Change Default File AssociationT1546.001
- Event Triggered Execution:.bash_profile and .bashrcT1546.004
- Event Triggered Execution: Accessibility FeaturesT1546.008
- Event Triggered Execution: Installer PackagesT1546.016
- Boot or Logon Autostart ExecutionT1547
- Boot or Logon Autostart Execution:Kernel Modules and ExtensionsT1547.006
Change log
- Fix✗ → ✓
For records you follow, these changes also arrive as notifications. →
References
- lists.opensuse.org/opensuse-security-announce/2019-04/msg00100.html
- packetstormsecurity.com/files/154245/Kernel-Live-Patch-Security-Notice-LSN-0054-1.html
- tracker.ceph.com/issues/24837
- access.redhat.com/errata/RHSA-2018:2177
- access.redhat.com/errata/RHSA-2018:2179
- access.redhat.com/errata/RHSA-2018:2261
- access.redhat.com/errata/RHSA-2018:2274
- bugzilla.redhat.com/show_bug.cgi?id=1576057
- github.com/ceph/ceph/commit/8f396cf35a3826044b089141667a196454c0a587
- lists.debian.org/debian-lts-announce/2019/03/msg00017.html
- www.debian.org/security/2018/dsa-4339
Vendor advisories and official records. Exploit/PoC links are deliberately left out.