A 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
A 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 bucket. A remote unauthenticated attacker could use this flaw to cause denial of service by sending a specially-crafted cross-origin HTTP request. Ceph branches 1.3.x and 2.x are affected.
- Published
- Aug 1, 2018
- Updated
- Jun 16, 2026
- EPSS
- 4.4% · 91th percentile
- CWE
- CWE-20
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Report tools
Action score
31
Monitor
Low priority for now.
- CVSS
- 30 / 40 · 7.5 / 10
- CISA KEV
- 0 / 30 · Not listed
- EPSS
- 1 / 30 · 4.4%
CNA vs NVD score
- NVD
- 7.5
- CNA · redhat
- 6.5
- 1.0 point gap
CVSS:3.0/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H
The score given by the assigning authority versus NVD’s independent score. A gap means the severity is contested.
Affected systems
| Vendor | Product | CPE |
|---|---|---|
| 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 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 |
| redhat | enterprise linux | cpe:2.3:o:redhat:enterprise_linux |
| canonical | ubuntu linux | cpe:2.3:o:canonical:ubuntu_linux |
Affected versions
NVD version ranges (for catalog products). Add the product to your stack with a version and matching uses these.
- redhat ceph storage1.3
- redhat ceph storage2.0
- redhat ceph storage mon1.3
- redhat ceph storage mon2
- redhat ceph storage osd1.3
- redhat ceph storage osd2
- redhat enterprise linux desktop7.0
- redhat enterprise linux server7.0
- redhat enterprise linux workstation7.0
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 ceph
- 1.3 and 2affected
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 10.2.5-2 | 10.2.5-2 |
| Red Hat:ceph_storage:1.3::el7 | ceph | before 1:0.94.9-9.el7cp | 1:0.94.9-9.el7cp |
| Red Hat:ceph_storage:1.3::el7 | ceph-common | before 1:0.94.9-9.el7cp | 1:0.94.9-9.el7cp |
| Red Hat:ceph_storage:1.3::el7 | ceph-debuginfo | before 1:0.94.9-9.el7cp | 1:0.94.9-9.el7cp |
| Red Hat:ceph_storage:1.3::el7 | ceph-mon | before 1:0.94.9-9.el7cp | 1:0.94.9-9.el7cp |
| Red Hat:ceph_storage:1.3::el7 | ceph-osd | before 1:0.94.9-9.el7cp | 1:0.94.9-9.el7cp |
| Red Hat:ceph_storage:1.3::el7 | ceph-radosgw | before 1:0.94.9-9.el7cp | 1:0.94.9-9.el7cp |
| Red Hat:ceph_storage:1.3::el7 | ceph-selinux | before 1:0.94.9-9.el7cp | 1:0.94.9-9.el7cp |
| Red Hat:ceph_storage:1.3::el7 | ceph-test | before 1:0.94.9-9.el7cp | 1:0.94.9-9.el7cp |
| Red Hat:ceph_storage:1.3::el7 | librados2 | before 1:0.94.9-9.el7cp | 1:0.94.9-9.el7cp |
| Red Hat:ceph_storage:1.3::el7 | librados2-devel | before 1:0.94.9-9.el7cp | 1:0.94.9-9.el7cp |
| Red Hat:ceph_storage:1.3::el7 | librbd1 | before 1:0.94.9-9.el7cp | 1:0.94.9-9.el7cp |
| Red Hat:ceph_storage:1.3::el7 | librbd1-devel | before 1:0.94.9-9.el7cp | 1:0.94.9-9.el7cp |
| Red Hat:ceph_storage:1.3::el7 | python-rados | before 1:0.94.9-9.el7cp | 1:0.94.9-9.el7cp |
| Red Hat:ceph_storage:1.3::el7 | python-rbd | before 1:0.94.9-9.el7cp | 1:0.94.9-9.el7cp |
| Red Hat:ceph_storage:2::el7 | ceph | before 1:10.2.3-17.el7cp | 1:10.2.3-17.el7cp |
| Red Hat:ceph_storage:2::el7 | ceph-base | before 1:10.2.3-17.el7cp | 1:10.2.3-17.el7cp |
| Red Hat:ceph_storage:2::el7 | ceph-common | before 1:10.2.3-17.el7cp | 1:10.2.3-17.el7cp |
| Red Hat:ceph_storage:2::el7 | ceph-debuginfo | before 1:10.2.3-17.el7cp | 1:10.2.3-17.el7cp |
| Red Hat:ceph_storage:2::el7 | ceph-fuse | before 1:10.2.3-17.el7cp | 1:10.2.3-17.el7cp |
| Red Hat:ceph_storage:2::el7 | ceph-mds | before 1:10.2.3-17.el7cp | 1:10.2.3-17.el7cp |
| Red Hat:ceph_storage:2::el7 | ceph-mon | before 1:10.2.3-17.el7cp | 1:10.2.3-17.el7cp |
| Red Hat:ceph_storage:2::el7 | ceph-osd | before 1:10.2.3-17.el7cp | 1:10.2.3-17.el7cp |
| Red Hat:ceph_storage:2::el7 | ceph-radosgw | before 1:10.2.3-17.el7cp | 1:10.2.3-17.el7cp |
+18
Same product
redhat: all recordsOther highest-scoring records for the same primary product.
- CVE-2018-1128It was found that cephx authentication protocol did not verify ceph clients correctly and was vulnerable to replay attack.30Monitor
- CVE-2020-1759A vulnerability was found in Red Hat Ceph Storage 4 and Red Hat Openshift Container Storage 4.2 where, A nonce reuse vulnerability was disco27Monitor
- CVE-2022-3854A flaw was found in Ceph, relating to the URL processing on RGW backends.26Monitor
- CVE-2021-3979A key length flaw was found in Red Hat Ceph Storage.26Monitor
- CVE-2020-10753A flaw was found in the Red Hat Ceph Storage RadosGW (Ceph Object Gateway).26Monitor
- CVE-2019-19337A flaw was found in Red Hat Ceph Storage version 3 in the way the Ceph RADOS Gateway daemon handles S3 requests.26Monitor
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 | 10.2.5-2 · Debian:12 | Package registry (OSV) |
| red hat:ceph | 1:10.2.3-17.el7cp · Red Hat:ceph_storage:2::el7 | Package registry (OSV) |
| red hat:ceph-base | 1:10.2.3-17.el7cp · Red Hat:ceph_storage:2::el7 | Package registry (OSV) |
| red hat:ceph-common | 1:10.2.3-17.el7cp · Red Hat:ceph_storage:2::el7 | Package registry (OSV) |
| red hat:ceph-debuginfo | 1:10.2.3-17.el7cp · Red Hat:ceph_storage:2::el7 | Package registry (OSV) |
| red hat:ceph-fuse | 1:10.2.3-17.el7cp · Red Hat:ceph_storage:2::el7 | Package registry (OSV) |
| red hat:ceph-mds | 1:10.2.3-17.el7cp · Red Hat:ceph_storage:2::el7 | Package registry (OSV) |
| red hat:ceph-radosgw | 1:10.2.3-17.el7cp · Red Hat:ceph_storage:2::el7 | Package registry (OSV) |
| red hat:ceph-selinux | 1:10.2.3-17.el7cp · Red Hat:ceph_storage:2::el7 | Package registry (OSV) |
| red hat:libcephfs1 | 1:10.2.3-17.el7cp · Red Hat:ceph_storage:2::el7 | Package registry (OSV) |
| red hat:libcephfs1-devel | 1:10.2.3-17.el7cp · Red Hat:ceph_storage:2::el7 | Package registry (OSV) |
| red hat:librados2 | 1:10.2.3-17.el7cp · Red Hat:ceph_storage:2::el7 | Package registry (OSV) |
| red hat:librados2-devel | 1:10.2.3-17.el7cp · Red Hat:ceph_storage:2::el7 | Package registry (OSV) |
| suse:ceph | 10.2.6+git.1490339825.57146d8-11.7 · SUSE:Enterprise Storage 4 | Package registry (OSV) |
| suse:ceph-test | 10.2.6+git.1490339825.57146d8-11.7 · SUSE:Enterprise Storage 4 | 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.
No commit or PR link among the references.
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
- Anyone who can reach it over the internet 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
- none
- Availability
- high · the service can be disrupted
- Attack vector
- Network
- Attack complexity
- Low
- Privileges required
- None
- User interaction
- None
- Scope
- Unchanged
- Confidentiality impact
- None
- Integrity impact
- None
- Availability impact
- High
Weakness class (CWE)
CWE-20 · Improper Input ValidationCVSS vector
CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
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)
- Buffer Overflow via Environment VariablesCAPEC-10likelihood: High · High
- Server Side Include (SSI) InjectionCAPEC-101likelihood: High · High
- Cross Zone ScriptingCAPEC-104likelihood: Medium · High
- Command Line Execution through SQL InjectionCAPEC-108likelihood: Low · Very High
- Object Relational Mapping InjectionCAPEC-109likelihood: Low · High
- SQL Injection through SOAP Parameter TamperingCAPEC-110likelihood: High · Very High
- Double EncodingCAPEC-120likelihood: Low · Medium
- Subverting Environment Variable ValuesCAPEC-13likelihood: High · Very High
ATT&CK techniques
- Obfuscated Files or InformationT1027
- Masquerading: Invalid Code SignatureT1036.001
- Steal Web Session CookieT1539
- Subvert Trust Controls: Code SigningT1553.002
- Impair Defenses:Impair Command History LoggingT1562.003
- Hijack Execution Flow:Dynamic Linker HijackingT1574.006
- Hijack Execution Flow:Path Interception by PATH Environment VariableT1574.007
Noroxi analysis
No Noroxi analysis for this record yet
We don't hand-write analysis for all 385,000+ vulnerabilities; 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 helpChange log
- Fix✗ → ✓
For records you follow, these changes also arrive as notifications. →
References
- rhn.redhat.com/errata/RHSA-2016-2954.html
- rhn.redhat.com/errata/RHSA-2016-2956.html
- rhn.redhat.com/errata/RHSA-2016-2994.html
- rhn.redhat.com/errata/RHSA-2016-2995.html
- www.securityfocus.com/bid/94936
Vendor advisories and official records. Exploit/PoC links are deliberately left out.