Multiple Cisco products are affected by a vulnerability with TCP Fast Open (TFO) when used in conjunction with the Snort detection engine that could allow an unauthenticated, remote attacker to bypass a configured file policy for HTTP. The vulnerability is due to incorrect detection of the HTTP payload if it is contained at least partially within the TFO connection handshake. An attacker could exploit this vulnerability by sending crafted TFO packets with an HTTP payload through an affected device. A successful exploit could allow the attacker to bypass configured file policy for HTTP packets and deliver a malicious payload.
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Secure Firewall Management Center
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Snort
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Snort
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Advisories
| Source | ID | Title |
|---|---|---|
Debian DLA |
DLA-3317-1 | snort security update |
Debian DSA |
DSA-5354-1 | snort security update |
EUVD |
EUVD-2021-6691 | Multiple Cisco products are affected by a vulnerability with TCP Fast Open (TFO) when used in conjunction with the Snort detection engine that could allow an unauthenticated, remote attacker to bypass a configured file policy for HTTP. The vulnerability is due to incorrect detection of the HTTP payload if it is contained at least partially within the TFO connection handshake. An attacker could exploit this vulnerability by sending crafted TFO packets with an HTTP payload through an affected device. A successful exploit could allow the attacker to bypass configured file policy for HTTP packets and deliver a malicious payload. |
Fixes
Solution
No solution given by the vendor.
Workaround
No workaround given by the vendor.
References
History
Mon, 14 Jul 2025 13:45:00 +0000
| Type | Values Removed | Values Added |
|---|---|---|
| Metrics |
epss
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epss
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Tue, 26 Nov 2024 16:45:00 +0000
| Type | Values Removed | Values Added |
|---|---|---|
| First Time appeared |
Cisco secure Firewall Management Center
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| CPEs | cpe:2.3:a:cisco:firepower_management_center:2.9.15:*:*:*:*:*:*:* cpe:2.3:a:cisco:firepower_management_center:2.9.16:*:*:*:*:*:*:* cpe:2.3:a:cisco:firepower_management_center:2.9.17:*:*:*:*:*:*:* cpe:2.3:a:cisco:firepower_management_center:2.9.18:*:*:*:*:*:*:* cpe:2.3:a:cisco:firepower_management_center:3.0.1:*:*:*:*:*:*:* |
cpe:2.3:a:cisco:secure_firewall_management_center:2.9.14.0:*:*:*:*:*:*:* cpe:2.3:a:cisco:secure_firewall_management_center:2.9.15:*:*:*:*:*:*:* cpe:2.3:a:cisco:secure_firewall_management_center:2.9.16:*:*:*:*:*:*:* cpe:2.3:a:cisco:secure_firewall_management_center:2.9.17:*:*:*:*:*:*:* cpe:2.3:a:cisco:secure_firewall_management_center:2.9.18:*:*:*:*:*:*:* cpe:2.3:a:cisco:secure_firewall_management_center:3.0.1:*:*:*:*:*:*:* |
| Vendors & Products |
Cisco firepower Management Center
|
Cisco secure Firewall Management Center
|
Projects
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Status: PUBLISHED
Assigner: cisco
Published:
Updated: 2024-11-12T20:48:38.628Z
Reserved: 2020-11-13T00:00:00
Link: CVE-2021-1224
No data.
Status : Modified
Published: 2021-01-13T22:15:20.410
Modified: 2024-11-26T16:09:02.407
Link: CVE-2021-1224
No data.
OpenCVE Enrichment
No data.
Weaknesses
Debian DLA
Debian DSA
EUVD