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5.8 Medium

CVE-2024-20407 A vulnerability in the interaction between the TCP Intercept feature and the Snort 3 detection engine on Cisco Firepower…

Description

A vulnerability in the interaction between the TCP Intercept feature and the Snort 3 detection engine on Cisco Firepower Threat Defense (FTD) Software could allow an unauthenticated, remote attacker to bypass configured policies on an affected system. Devices that are configured with Snort 2 are not affected by this vulnerability. This vulnerability is due to a logic error when handling embryonic (half-open) TCP connections. An attacker could exploit this vulnerability by sending a crafted traffic pattern through an affected device. A successful exploit could allow unintended traffic to enter the network protected by the affected device.

Affected products and versions

Product Affected versions Fixed in
Cisco Firepower Threat Defense Software 7.4 7.4.0 → 7.4.1.1 No fix stated
Cisco Firepower Threat Defense Software 7.3 7.3.0 → 7.3.1.2 No fix stated
Cisco Firepower Threat Defense Software 7.2 7.2.0 → 7.2.8.1 No fix stated
Cisco Firepower Threat Defense Software 7.1 7.1.0 → 7.1.0.3 No fix stated
Cisco Firepower Threat Defense Software 7.0 7.0.0 → 7.0.6.2 No fix stated
Cisco Firepower Threat Defense Software 6.7 6.7.0 → 6.7.0.3 No fix stated
Cisco Firepower Threat Defense Software 6.6 6.6.0 → 6.6.7.2 No fix stated
Cisco Firepower Threat Defense Software 6.4 6.4.0 → 6.4.0.18 No fix stated
Cisco Firepower Threat Defense Software 6.2 6.2.3 → 6.2.3.18 No fix stated
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Product Affected versions Fixed in
firepower_threat_defense_software 7.4 7.4.0 → 7.4.1.1 No fix stated
firepower_threat_defense_software 7.3 7.3.0 → 7.3.1.2 No fix stated
firepower_threat_defense_software 7.2 7.2.0 → 7.2.8.1 No fix stated
firepower_threat_defense_software 7.1 7.1.0 → 7.1.0.3 No fix stated
firepower_threat_defense_software 7.0 7.0.0 → 7.0.6.2 No fix stated
firepower_threat_defense_software 6.7 6.7.0 → 6.7.0.3 No fix stated
firepower_threat_defense_software 6.6 6.6.0 → 6.6.7.2 No fix stated
firepower_threat_defense_software 6.4 6.4.0 → 6.4.0.18 No fix stated
firepower_threat_defense_software 6.2 6.2.3 → 6.2.3.18 No fix stated

References

Timeline

  1. Published
  2. Last modified

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