Security readout for executives and security teams
Plain-English summary
CVE-2019-20049 describes unauthenticated remote code execution against Alcatel-Lucent OmniVista. An attacker could combine authentication bypass through directory traversal with unsafe file upload to run code as SYSTEM. For any exposed management system, this is a business-critical issue because compromise can mean full host control.
Executive priority
Prioritize as critical if OmniVista is deployed or exposed. The issue is old, has public exploit references, and could give unauthenticated attackers SYSTEM-level control. The main uncertainty is product/version scope, not impact.
Technical view
The CVE describes a chain: directory traversal in __construct() used to bypass authentication, then insecure upload in SetSkinImages() leading to SYSTEM-level RCE. Public exploit-oriented references exist, but the bundle does not provide CVSS, precise affected versions, or confirmed exploitation in the wild.
Likely exposure
Exposure is most likely where OmniVista management interfaces are reachable from untrusted networks. The bundle has conflicting product naming, referencing OmniVista 4760 in the CVE text and OV8770 in advisory and exploit references, so inventory confirmation is required.
Exploitation context
Public exploit references are listed on Exploit-DB and Packet Storm, but KEV is false and the bundle does not cite active exploitation. Treat internet-facing instances as urgent because the described chain is remote, unauthenticated, and reaches SYSTEM privileges.
Researcher notes
The source bundle names traversal in __construct() and upload handling in SetSkinImages(). Avoid relying only on NVD-style affected fields because they are n/a here. Use vendor advisory SA-C0065 to resolve the 4760 versus OV8770 scope ambiguity.
Mitigation direction
- Review AL Enterprise advisory SA-C0065 for affected versions and vendor fixes.
- Inventory OmniVista 4760 and OV8770 deployments and ownership.
- Remove management interfaces from public or untrusted network exposure.
- Apply vendor-provided updates or configuration guidance when confirmed.
- Increase monitoring around OmniVista hosts until remediation is complete.
Validation and detection
- Confirm whether OmniVista 4760 or OV8770 is deployed.
- Check product versions against the vendor advisory, not only CVE metadata.
- Verify administrative interfaces are not internet-accessible.
- Review logs for unexpected upload, skin image, or traversal-related activity.
- Confirm remediation through approved vendor-supported version checks.
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.
Execution behavior lookup
The CVE wording references code or command execution, so execution technique review may help defensive triage. This is a Glexia inferred lookup path, not an official MITRE, ATT&CK, or CVE Program mapping.
Open ATT&CK lookupFile access behavior lookup
The CVE wording references file access or upload behavior, so file telemetry and web shell review may help. This is a Glexia inferred lookup path, not an official MITRE, ATT&CK, or CVE Program mapping.
Open ATT&CK lookupCVE-2019-20049 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://git.lsd.cat/g/omnivista-rceCVE reference · x_refsource_MISC
- https://www.exploit-db.com/exploits/47761CVE reference · x_refsource_MISC
- https://packetstormsecurity.com/files/155595/Alcatel-Lucent-Omnivista-8770-Remote-Code-Execution.htmlCVE reference · x_refsource_MISC
- https://www.al-enterprise.com/en/-/media/assets/internet/documents/sa-c0065-ov8770-rce-vulnerability-en.pdfCVE reference · x_refsource_MISC
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.