cbcvebase.
CVE-2020-3299
published 2020-10-21

CVE-2020-3299: Multiple Cisco products are affected by a vulnerability in the Snort detection engine that could allow an unauthenticated, remote attacker to bypass a…

PriorityP335medium5.8CVSS 3.1
AVNACLPRNUINSCCNILAN
EPSS
2.31%
82.2th percentile
Multiple Cisco products are affected by a vulnerability in 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 modified HTTP packets used in chunked responses. An attacker could exploit this vulnerability by sending crafted HTTP packets through an affected device. A successful exploit could allow the attacker to bypass a configured File Policy for HTTP packets and deliver a malicious payload.

Affected

4 ranges
VendorProductVersion rangeFixed in
ciscocisco_firepower_threat_defense_software
ciscoproducts_snort_http_detection_engine_file_policy
ciscosecure_firewall_threat_defense>= 6.0.0 < 6.3.0.16.3.0.1
snortsnort< 2.9.13.12.9.13.1

CVSS provenance

nvdv3.15.8MEDIUMCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:C/C:N/I:L/A:N
nvdv3.05.8MEDIUMCVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:C/C:N/I:L/A:N
nvdv2.05.0MEDIUMAV:N/AC:L/Au:N/C:N/I:P/A:N
osv5.8MEDIUM
vendor_cisco5.8MEDIUM
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