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CVE-2020-3186

MEDIUMCVSS 5.3/10EPSS 1.33%

Last modified

CVE-2020-3186 is a medium-severity vulnerability rated 5.3/10 on the CVSS scale. A vulnerability in the management access list configuration of Cisco Firepower Threat Defense (FTD) Software could allow an unauthenticated, remote attacker to bypass a configured management interface access list on an affected system. The vulnerability is due to the configuration of different management access lists, with ports allowed in one access list and denied in another. EPSS estimates a 1.33% chance of exploitation in the next 30 days.

Description

A vulnerability in the management access list configuration of Cisco Firepower Threat Defense (FTD) Software could allow an unauthenticated, remote attacker to bypass a configured management interface access list on an affected system. The vulnerability is due to the configuration of different management access lists, with ports allowed in one access list and denied in another. An attacker could exploit this vulnerability by sending crafted remote management traffic to the local IP address of an affected system. A successful exploit could allow the attacker to bypass the configured management access list policies, and traffic to the management interface would not be properly denied.

Metrics

CVSS 3.1
5.3/10

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

CVSS 3.0
5.3/10

CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:L/A:N

EPSS Probability
1.33%

68.4th percentile

Probability of exploitation in the next 30 days. Learn more

Weakness Enumeration

Affected Software

VendorProductVersions
CiscoFirepower Threat Defense>= 6.3.0, < 6.3.0.6
CiscoFirepower Threat Defense>= 6.4.0, < 6.4.0.7
CiscoFirepower Threat Defense>= 6.5.0, < 6.5.0.2
CiscoAsa 5505 Firmware9.12\(1.6\)
CiscoAsa 5505 Firmware201.5\(23.16\)
CiscoAsa 5510 Firmware9.12\(1.6\)
CiscoAsa 5510 Firmware201.5\(23.16\)
CiscoAsa 5512-X Firmware9.12\(1.6\)
CiscoAsa 5512-X Firmware201.5\(23.16\)
CiscoAsa 5515-X Firmware9.12\(1.6\)
CiscoAsa 5515-X Firmware201.5\(23.16\)
CiscoAsa 5520 Firmware9.12\(1.6\)
CiscoAsa 5520 Firmware201.5\(23.16\)
CiscoAsa 5525-X Firmware9.12\(1.6\)
CiscoAsa 5525-X Firmware201.5\(23.16\)
CiscoAsa 5540 Firmware9.12\(1.6\)
CiscoAsa 5540 Firmware201.5\(23.16\)
CiscoAsa 5545-X Firmware9.12\(1.6\)
CiscoAsa 5545-X Firmware201.5\(23.16\)
CiscoAsa 5550 Firmware9.12\(1.6\)
CiscoAsa 5550 Firmware201.5\(23.16\)
CiscoAsa 5555-X Firmware9.12\(1.6\)
CiscoAsa 5555-X Firmware201.5\(23.16\)
CiscoAsa 5580 Firmware9.12\(1.6\)
CiscoAsa 5580 Firmware201.5\(23.16\)
CiscoAsa 5585-X Firmware9.12\(1.6\)
CiscoAsa 5585-X Firmware201.5\(23.16\)

References

Timeline

Published
Last Modified
Status
Modified

Frequently Asked Questions

What is CVE-2020-3186?
A vulnerability in the management access list configuration of Cisco Firepower Threat Defense (FTD) Software could allow an unauthenticated, remote attacker to bypass a configured management interface access list on an affected system. The vulnerability is due to the configuration of different management access lists, with ports allowed in one access list and denied in another. An attacker could exploit this vulnerability by sending crafted remote management traffic to the local IP address of an affected system. A successful exploit could allow the attacker to bypass the configured management access list policies, and traffic to the management interface would not be properly denied.
How severe is CVE-2020-3186?
CVE-2020-3186 has a CVSS score of 5.3/10 (MEDIUM severity). The EPSS model estimates a 1.33% probability of exploitation in the next 30 days.
How do I fix CVE-2020-3186?
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