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CVE-2019-5592

MEDIUMCVSS 5.9/10EPSS 0.71%

Last modified

CVE-2019-5592 is a medium-severity vulnerability rated 5.9/10 on the CVSS scale. 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 estimates a 0.71% chance of exploitation in the next 30 days.

Description

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.

Metrics

CVSS 3.1
5.9/10

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

EPSS Probability
0.71%

48.6th percentile

Probability of exploitation in the next 30 days. Learn more

Weakness Enumeration

Affected Software

VendorProductVersions
FortinetFortios Ips Engine<= 3.00547
FortinetFortios Ips Engine>= 4.00000, <= 4.00036
FortinetFortios Ips Engine>= 4.00200, <= 4.00219
FortinetFortios Ips Engine>= 5.00000, <= 5.00006

References

Timeline

Published
Last Modified
Status
Modified

Frequently Asked Questions

What is 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.
How severe is CVE-2019-5592?
CVE-2019-5592 has a CVSS score of 5.9/10 (MEDIUM severity). The EPSS model estimates a 0.71% probability of exploitation in the next 30 days.
How do I fix CVE-2019-5592?
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.

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Source: NVD / NIST