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CVE Record

CVE-2019-20047: An issue was discovered on Alcatel-Lucent OmniVista 4760 devices, and 8770 devices before 4.1.2.

An issue was discovered on Alcatel-Lucent OmniVista 4760 devices, and 8770 devices before 4.1.2. An incorrect web server configuration allows a remote unauthenticated attacker to retrieve the content of its own session files. Every session file contains the administrative LDAP credentials encoded in a reversible format. Sessions are stored in /sessions/sess_<sessionid>.

UnknownCVSS not scoredNot KEV-listedUpdated
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Glexia's TakeAutomated analysishigh

Security readout for executives and security teams

Plain-English summary

CVE-2019-20047 is a credential exposure issue in Alcatel-Lucent OmniVista 4760 and OmniVista 8770 before 4.1.2. A remote unauthenticated attacker may retrieve their own web session file, which contains administrative LDAP credentials in a reversible format. This creates risk of privileged access if exposed management interfaces are reachable.

Executive priority

Treat this as urgent for exposed telecom or network management environments. The core risk is theft of administrative LDAP credentials, which can widen compromise beyond the OmniVista appliance.

Technical view

The issue is an incorrect web server configuration exposing session files under /sessions/sess_<sessionid>. According to the CVE, each session file contains administrative LDAP credentials encoded reversibly. Public references include exploit/advisory pages, but the provided bundle does not include CVSS, CWE, or confirmed active exploitation evidence.

Likely exposure

Organizations using Alcatel-Lucent OmniVista 4760 or OmniVista 8770 before 4.1.2 are most exposed, especially where the web interface is reachable from untrusted networks.

Exploitation context

The source bundle includes public Exploit-DB, Packet Storm, and Git references, indicating public exploit discussion or tooling exists. CISA KEV is false and no cited source in the bundle confirms active exploitation.

Researcher notes

Evidence is strong for the vulnerable behavior from the CVE description, but incomplete for scoring, exploit maturity, and vendor remediation details beyond 8770 before 4.1.2. Avoid assuming active exploitation without KEV or another cited source.

Mitigation direction

  • Upgrade OmniVista 8770 to 4.1.2 or later where applicable.
  • Check ALE vendor advisory for 4760-specific remediation guidance.
  • Restrict OmniVista web access to trusted management networks or VPN.
  • Rotate administrative LDAP credentials after remediation.
  • Review session and authentication logs for suspicious access.

Validation and detection

  • Inventory OmniVista 4760 and 8770 deployments and versions.
  • Confirm whether any 8770 instance is below version 4.1.2.
  • Verify management web interfaces are not internet-exposed.
  • Check for accessible session-file paths only through approved defensive testing.
  • Confirm administrative LDAP credentials were rotated after fixes.
Prepared
Confidence
medium
Sources
6

Public sources used

Generated from the cited source records. This long-tail analysis has not been individually reviewed by a named human.

Potential ATT&CK relevance

Conservative CVE-to-ATT&CK context

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Vulnerability profileCVE Program record
Severity
Unknown
CVSS
Not scored
Known Exploited
No
Published
Official CVE source material

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.

0CVSS vectors
0Timeline events
0ADP providers
5Source links

CVSS and timeline data

No CVSS vectors or timeline events were available in the normalized CVE source material.

Source materials

Affected products

Products and packages named in the record

VendorProductVersion / packageStatus
n/an/an/aListed
Weakness

CWE details

No CWE listed

CWE links open Glexia weakness intelligence pages with official CWE context, developer remediation guidance, and related CVE mappings.