What is CVE-2019-5592?

CVE-2019-5592 is a medium-severity vulnerability in Fortinet Fortios Ips Engine, classified under Improper Verification of Cryptographic Signature. CVSS score: 5.9/10. Published 2019-08-23.

How severe is CVE-2019-5592?

Medium severity. CVSS v3 base score is 5.9 out of 10.

Is CVE-2019-5592 known to be exploited?

2 public proof-of-concept repositories are indexed. Not currently listed in the CISA KEV catalog.

Vulnerability in Fortinet Fortios Ips Engine

CVE-2019-5592

Multiple padding oracle vulnerabilities (Zombie POODLE, GOLDENDOODLE, OpenSSL 0-length) in the CBC padding implementation of FortiOS IPS engine version 5.000 to 5.006, 4.000 to 4.036, 4.200 to 4.219, 3.547 and below, when configured with SSL Deep Inspection policies and with the IPS sensor enabled, may allow an attacker to decipher TLS connections going through the FortiGate via monitoring the traffic in a Man-in-the-middle position.

EPSS: 0.007 (49.6th percentile) — read the EPSS interpretation.

CVSS v3 metric

CVSS v3 base score 5.9 (Medium). Vector: CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:N/A:N.

Affected products

Fortinet Fortios_ips_engine
N/a Fortinet Ips Engine — versions IPS engine version 5.000 to 5.006, 4.000 to 4.036, 4.200 to 4.219, 3.547 and below

Weakness classification (CWE)

CWE-347 — Improper Verification of Cryptographic Signature

Public proof-of-concept exploits

References

psirt@fortinet.com (x_refsource_CONFIRM, Vendor Advisory)

Frequently asked questions

What is CVE-2019-5592?: CVE-2019-5592 is a medium-severity vulnerability in Fortinet Fortios Ips Engine, classified under Improper Verification of Cryptographic Signature. CVSS score: 5.9/10. Published 2019-08-23.
How severe is CVE-2019-5592?: Medium severity. CVSS v3 base score is 5.9 out of 10.
Is CVE-2019-5592 known to be exploited?: 2 public proof-of-concept repositories are indexed. Not currently listed in the CISA KEV catalog.