Security readout for executives and security teams
Plain-English summary
This flaw lets a remote attacker log in to vulnerable ownCloud deployments that use the LDAP user and group backend if they know a valid username. The issue affects ownCloud before 5.0.18, 6.x before 6.0.6, and 7.x before 7.0.3. No source provided confirms active exploitation.
Executive priority
Prioritize remediation for any internet-accessible ownCloud system using LDAP authentication. The business concern is unauthorized access to files and accounts, although the supplied sources do not confirm exploitation in the wild.
Technical view
CVE-2014-9043 is an authentication bypass in ownCloud user_ldap. A null byte in the password with a valid username can trigger an unauthenticated LDAP bind. The source data names vulnerable branches before 5.0.18, 6.0.6, and 7.0.3. CVSS and CWE data are not supplied.
Likely exposure
Exposure is likely limited to ownCloud instances using the LDAP user and group backend on the vulnerable version ranges. Internet-facing deployments are more urgent because the attack is remote and only requires a valid username.
Exploitation context
The source bundle does not include KEV status or cited evidence of active exploitation. The described impact is authentication bypass, which could allow account access where vulnerable ownCloud LDAP authentication is enabled.
Researcher notes
Evidence is narrow but clear: the CVE description identifies user_ldap, affected version ranges, and the authentication-bypass condition. CVSS, CWE, affected CPEs, and detailed vendor remediation text are absent from the supplied bundle.
Mitigation direction
- Upgrade affected ownCloud branches to 5.0.18, 6.0.6, 7.0.3, or later.
- Confirm whether the user_ldap application is enabled and needed.
- If upgrade is blocked, check ownCloud advisory OC-SA-2014-020 for vendor guidance.
- Review authentication logs for unexpected successful logins involving LDAP-backed accounts.
Validation and detection
- Inventory ownCloud versions across production, staging, and backups.
- Verify whether LDAP user and group backend is enabled on each instance.
- Confirm deployed versions are not below 5.0.18, 6.0.6, or 7.0.3.
- Review account access records for unusual LDAP-backed login activity.
Public sources used
Generated from the cited source records. This long-tail analysis has not been individually reviewed by a named human.
Conservative CVE-to-ATT&CK context
These mappings and lookup hints may be relevant to the vulnerability behavior, CWE, affected product, or exposure path. Glexia-inferred context is not an official MITRE, ATT&CK, CWE, or CVE Program mapping.
ATT&CK lookup starting points
Use these exact CWE pages and searches to review the Glexia ATT&CK library from this CVE's weakness and description context.
Credential and access behavior lookup
The CVE wording references authentication or credential exposure, so valid-account and credential-access review may help. This is a Glexia inferred lookup path, not an official MITRE, ATT&CK, or CVE Program mapping.
Open ATT&CK lookupCVE-2014-9043 mapping review
Open the CVE-to-ATT&CK bridge for reviewed, inferred, or future official mappings tied to this CVE.
Open ATT&CK lookup- Severity
- Unknown
- CVSS
- Not scored
- Known Exploited
- No
- Published
CNA and ADP enrichment extracted from CVE v5
These fields come from the CVE record and ADP containers, not from Glexia's Take. They preserve time-varying source decisions such as CISA SSVC, KEV status, CVSS metrics, and provider references.
CVSS and timeline data
No CVSS vectors or timeline events were available in the normalized CVE source material.
Source materials
- CVE List V5 sourceCVE List V5
- https://owncloud.org/security/advisory/?id=oc-sa-2014-020CVE reference · x_refsource_CONFIRM
Products and packages named in the record
CWE details
CWE links open Glexia weakness intelligence pages with official CWE context, developer remediation guidance, and related CVE mappings.