OpenStack Dashboard (Horizon) before 2014.1.3 and 2014.2.x before 2014.2.1 does not properly handle session records when using a db or memca
OpenStack Dashboard (Horizon) before 2014.1.3 and 2014.2.x before 2014.2.1 does not properly handle session records when using a db or memcached session engine, which allows remote attackers to cause a denial of service via a large number of requests to the login page.
- Published
- Dec 12, 2014
- Updated
- Jun 16, 2026
- EPSS
- 2.9% · 86th percentile
- CWE
- CWE-400
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Report tools
Action score
21
Monitor
Low priority for now.
- CVSS
- 20 / 40 · 5.0 / 10
- CISA KEV
- 0 / 30 · Not listed
- EPSS
- 1 / 30 · 2.9%
Affected systems
| Vendor | Product | CPE |
|---|---|---|
| openstack | horizon | cpe:2.3:a:openstack:horizon |
| fedoraproject | fedora | cpe:2.3:o:fedoraproject:fedora |
| opensuse | opensuse | cpe:2.3:o:opensuse:opensuse |
| oracle | solaris | cpe:2.3:o:oracle:solaris |
Affected versions
NVD version ranges (for catalog products). Add the product to your stack with a version and matching uses these.
- fedoraproject fedora21
- openstack horizon2014.1 and later · before 2014.1.3
- openstack horizon2014.2.0 and later · before 2014.2.1
- opensuse opensuse13.1
- oracle solaris11.2
Package-level exposure
OSV and GitHub Advisory data: ecosystem, package and range. SBOM matching uses this table.
| Ecosystem | Package | Affected range | Fix |
|---|---|---|---|
| Debian:12 | horizon | before 2014.1.3-6 | 2014.1.3-6 |
| Red Hat:openstack:5::el6 | openstack-dashboard | before 0:2014.1.4-1.el6ost | 0:2014.1.4-1.el6ost |
| Red Hat:openstack:5::el6 | openstack-dashboard-theme | before 0:2014.1.4-1.el6ost | 0:2014.1.4-1.el6ost |
| Red Hat:openstack:5::el6 | python-django-horizon | before 0:2014.1.4-1.el6ost | 0:2014.1.4-1.el6ost |
| Red Hat:openstack:5::el6 | python-django-horizon-doc | before 0:2014.1.4-1.el6ost | 0:2014.1.4-1.el6ost |
| Red Hat:openstack:5::el6 | python-django-openstack-auth | before 0:1.1.5-4.el6ost | 0:1.1.5-4.el6ost |
| Red Hat:openstack:5::el7 | openstack-dashboard | before 0:2014.1.4-1.el7ost | 0:2014.1.4-1.el7ost |
| Red Hat:openstack:5::el7 | openstack-dashboard-theme | before 0:2014.1.4-1.el7ost | 0:2014.1.4-1.el7ost |
| Red Hat:openstack:5::el7 | python-django-horizon | before 0:2014.1.4-1.el7ost | 0:2014.1.4-1.el7ost |
| Red Hat:openstack:5::el7 | python-django-horizon-doc | before 0:2014.1.4-1.el7ost | 0:2014.1.4-1.el7ost |
| Red Hat:openstack:5::el7 | python-django-openstack-auth | before 0:1.1.5-4.el7ost | 0:1.1.5-4.el7ost |
Same product
openstack: all recordsOther highest-scoring records for the same primary product.
- CVE-2012-2144Session fixation vulnerability in OpenStack Dashboard (Horizon) folsom-1 and 2012.1 allows remote attackers to hijack web sessions via the s28Monitor
- CVE-2026-55748OpenStack Horizon before 25.7.4 produces scripts for OpenStack RC file downloading that may have a crafted project name with shell metachara27Monitor
- CVE-2022-45582Open Redirect vulnerability in Horizon Web Dashboard 19.4.0 thru 20.1.4 via the success_url parameter.24Monitor
- CVE-2020-29565An issue was discovered in OpenStack Horizon before 15.3.2, 16.x before 16.2.1, 17.x and 18.x before 18.3.3, 18.4.x, and 18.5.x.24Monitor
- CVE-2012-3540Open redirect vulnerability in views/auth_forms.py in OpenStack Dashboard (Horizon) Essex (2012.1) allows remote attackers to redirect users24Monitor
- CVE-2012-5476Within the RHOS Essex Preview (2012.2) of the OpenStack dashboard package, the file /etc/quantum/quantum.conf is world readable which expose22Monitor
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:horizon | 2014.1.3-6 · Debian:12 | Package registry (OSV) |
| red hat:openstack-dashboard | 0:2014.1.4-1.el7ost · Red Hat:openstack:5::el7 | Package registry (OSV) |
| red hat:openstack-dashboard-theme | 0:2014.1.4-1.el7ost · Red Hat:openstack:5::el7 | Package registry (OSV) |
| red hat:python-django-horizon | 0:2014.1.4-1.el7ost · Red Hat:openstack:5::el7 | Package registry (OSV) |
| red hat:python-django-horizon-doc | 0:2014.1.4-1.el7ost · Red Hat:openstack:5::el7 | Package registry (OSV) |
| red hat:python-django-openstack-auth | 0:1.1.5-4.el7ost · Red Hat:openstack:5::el7 | 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
- No special conditions are required; it is repeatable.
If successful
- Confidentiality
- none
- Integrity
- none
- Availability
- P · the service can be disrupted
- Attack complexity
- Low
- Confidentiality impact
- None
- Integrity impact
- None
- Availability impact
- P
Weakness class (CWE)
CWE-400 · Uncontrolled Resource ConsumptionCVSS vector
AV:N/AC:L/Au:N/C:N/I:N/A:P
nvd-primary
Root cause
Code that parses nested structures sets no depth or size limit. A small input can turn into a disproportionate processing load.
The bug in code
The whole CWE-400 classA representative example of this vulnerability class. Not the vendor's source code; it shows the faulty pattern and its fix.
Vulnerable
function expand(node) { return node.children.map(expand);}Fixed
const MAX_DEPTH = 32;function expand(node, depth = 0) { if (depth > MAX_DEPTH) throw new Error("too deep"); return node.children.map((c) => expand(c, depth + 1));}Attack context
MITRE CAPEC attack patterns and ATT&CK techniques for this weakness class (CWE). A starting point for detection rules and threat hunting.
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
- lists.fedoraproject.org/pipermail/package-announce/2015-January/147520.html
- lists.openstack.org/pipermail/openstack-announce/2014-December/000308.html
- lists.opensuse.org/opensuse-updates/2015-01/msg00040.html
- rhn.redhat.com/errata/RHSA-2015-0839.html
- rhn.redhat.com/errata/RHSA-2015-0845.html
- secunia.com/advisories/61186
- www.oracle.com/technetwork/topics/security/bulletinjan2015-2370101.html
- bugs.launchpad.net/horizon/+bug/1394370
Vendor advisories and official records. Exploit/PoC links are deliberately left out.