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CVE-2014-9043· NVD / CVE Program· CNA mitre

The user_ldap (aka LDAP user and group backend) application in ownCloud before 5.0.18, 6.x before 6.0.6, and 7.x before 7.0.3 allows remote

The user_ldap (aka LDAP user and group backend) application in ownCloud before 5.0.18, 6.x before 6.0.6, and 7.x before 7.0.3 allows remote attackers to bypass authentication via a null byte in the password and a valid user name, which triggers an unauthenticated bind.

MediumCVSS 5.0 · v2.0—No exploit Fix available
Published
Feb 4, 2015
Updated
Jun 16, 2026
EPSS
1.9% · 78th percentile
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Report tools

JSON

Action score

21

Monitor

Low priority for now.

CVSS
20 / 40 · 5.0 / 10
CISA KEV
0 / 30 · Not listed
EPSS
1 / 30 · 1.9%

Affected systems

VendorProduct
owncloudowncloud
owncloudowncloud server

Affected versions

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

  • owncloud owncloudup to 5.0.17 inclusive
  • owncloud owncloud server5.0.0
  • owncloud owncloud server5.0.1
  • owncloud owncloud server5.0.10
  • owncloud owncloud server5.0.11
  • owncloud owncloud server5.0.12
  • owncloud owncloud server5.0.13
  • owncloud owncloud server5.0.14
  • owncloud owncloud server5.0.15
  • owncloud owncloud server5.0.16
  • owncloud owncloud server5.0.2
  • owncloud owncloud server5.0.3
  • owncloud owncloud server5.0.4
  • owncloud owncloud server5.0.5
  • owncloud owncloud server5.0.6
  • owncloud owncloud server5.0.7
  • owncloud owncloud server5.0.8
  • owncloud owncloud server5.0.9
  • owncloud owncloud server6.0.0
  • owncloud owncloud server6.0.1

Package-level exposure

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

EcosystemPackageAffected rangeFix
openSUSE:Tumbleweedzncbefore 1.6.3-2.61.6.3-2.6

Same product

owncloud: all records

Other highest-scoring records for the same primary product.

  • CVE-2015-4716Directory traversal vulnerability in the routing component in ownCloud Server before 7.0.6 and 8.0.x before 8.0.4, when running on Windows,
    47Plan
  • CVE-2014-2052Zend Framework, as used in ownCloud Server before 5.0.15 and 6.0.x before 6.0.2, allows remote attackers to read arbitrary files, cause a de
    40Plan
  • CVE-2014-2048The user_openid app in ownCloud Server before 5.0.15 allows remote attackers to obtain access by leveraging an insecure OpenID implementatio
    40Plan
  • CVE-2021-35946A receiver of a federated share with access to the database with ownCloud version before 10.8 could update the permissions and therefore ele
    39Monitor
  • CVE-2015-4718The external SMB storage driver in ownCloud Server before 6.0.8, 7.0.x before 7.0.6, and 8.0.x before 8.0.4 allows remote authenticated user
    37Monitor
  • CVE-2020-28645Deleting users with certain names caused system files to be deleted.
    36Monitor

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
opensuse:znc1.6.3-2.6 · openSUSE:TumbleweedPackage 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.

EPSS, last 120 days

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 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).

Technical details

Attack conditions

  • No special conditions are required; it is repeatable.

If successful

Confidentiality
none
Integrity
P · data or configuration can be modified
Availability
none
Attack complexity
Low
Confidentiality impact
None
Integrity impact
P
Availability impact
None

Weakness class (CWE)

CWE-287 · Improper Authentication

CVSS vector

AV:N/AC:L/Au:N/C:N/I:P/A:N

nvd-primary

Root cause

Authentication is added route by route instead of being enforced in one place. When a route added later bypasses the shared middleware, the session check never runs for it.

The bug in code

The whole CWE-287 class

A representative example of this vulnerability class. Not the vendor's source code; it shows the faulty pattern and its fix.

Vulnerable

ts
app.use("/admin", requireSession, adminRouter);
// Route added later skips the middlewareapp.post("/admin-api/config", updateConfig);

Fixed

ts
const admin = express.Router();admin.use(requireSession, requireRole("admin"));
admin.post("/config", updateConfig);app.use("/admin", admin);

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.

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Change log

  1. Fix✗ → ✓

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References

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

All records