CVE-2019-20047

Name: CVE-2019-20047
Creator: NVD / NIST
Published: 2019-12-27T19:15:12.553+00:00
License: https://creativecommons.org/publicdomain/zero/1.0/

HIGHCVSS 7.5/10EPSS 2.71%

Last modified Jun 17, 2026

CVE-2019-20047 is a high-severity vulnerability rated 7.5/10 on the CVSS scale. 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. EPSS estimates a 2.71% chance of exploitation in the next 30 days.

Description

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>.

Metrics

CVSS 3.1

7.5/10

CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N

EPSS Probability

2.71%

84.1th percentile

Probability of exploitation in the next 30 days. Learn more

Weakness Enumeration

CWE-522

Affected Software

Vendor	Product	Versions
Al-Enterprise	Omnivista 4760	All versions
Al-Enterprise	Omnivista 8770	< 4.1.12

References

https://git.lsd.cat/g/omnivista-rceExploit, Third Party Advisory
https://packetstormsecurity.com/files/155595/Alcatel-Lucent-Omnivista-8770-Remote-Code-Execution.htmlExploit, Third Party Advisory, VDB Entry
https://www.al-enterprise.com/en/-/media/assets/internet/documents/sa-c0065-ov8770-rce-vulnerability-en.pdfVendor Advisory
https://www.exploit-db.com/exploits/47761Exploit, Third Party Advisory, VDB Entry
https://git.lsd.cat/g/omnivista-rceExploit, Third Party Advisory
https://packetstormsecurity.com/files/155595/Alcatel-Lucent-Omnivista-8770-Remote-Code-Execution.htmlExploit, Third Party Advisory, VDB Entry
https://www.al-enterprise.com/en/-/media/assets/internet/documents/sa-c0065-ov8770-rce-vulnerability-en.pdfVendor Advisory
https://www.exploit-db.com/exploits/47761Exploit, Third Party Advisory, VDB Entry

Timeline

Published: Dec 27, 2019
Last Modified: Jun 17, 2026
Status: Modified

Frequently Asked Questions

What is CVE-2019-20047?

How severe is CVE-2019-20047?

CVE-2019-20047 has a CVSS score of 7.5/10 (HIGH severity). The EPSS model estimates a 2.71% probability of exploitation in the next 30 days.

How do I fix CVE-2019-20047?

Check the vendor references and advisories linked above for patched versions and mitigation guidance. You can also run a Strix scan to test if your systems are affected.

Are you affected by CVE-2019-20047?

Run a free Strix scan to check your systems for this vulnerability.

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Source: NVD / NIST