Описание
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.
| Релиз | Статус | Примечание |
|---|---|---|
| bionic | ignored | end of standard support, was needs-triage |
| devel | DNE | |
| esm-apps-legacy/xenial | needed | |
| esm-apps/bionic | needed | |
| esm-apps/focal | needed | |
| esm-apps/jammy | needed | |
| esm-apps/noble | not-affected | 2.9.17 |
| esm-apps/xenial | ignored | end of ESM support, was needed |
| esm-infra-legacy/trusty | needed | |
| focal | ignored | end of standard support, was needed |
Показывать по
EPSS
5 Medium
CVSS2
5.3 Medium
CVSS3
Связанные уязвимости
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.
Multiple Cisco products are affected by a vulnerability with TCP Fast ...
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.
Уязвимость расширения протокола TCP Fast Open (TFO) системы обнаружения вторжений Snort, позволяющая нарушителю обойти настроенную файловую политику для HTTP
ALT-PU-2021-1678: package `snort` update to version 2.9.17.1-alt1
EPSS
5 Medium
CVSS2
5.3 Medium
CVSS3