7.5

CVE-2021-1223

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 handling of an HTTP range header. An attacker could exploit this vulnerability by sending crafted HTTP packets through an affected device. A successful exploit could allow the attacker to bypass configured file policy for HTTP packets and deliver a malicious payload.

Data is provided by the National Vulnerability Database (NVD)
Cisco ≫ Firepower Threat Defense Version < 6.7.0
Cisco ≫ Ios Xe Version < 17.4.1
   Cisco ≫ 1100-4p Integrated Services Router Version-
   Cisco ≫ 1100-8p Integrated Services Router Version-
   Cisco ≫ 1101-4p Integrated Services Router Version-
   Cisco ≫ 1109-2p Integrated Services Router Version-
   Cisco ≫ 1109-4p Integrated Services Router Version-
   Cisco ≫ 1111x-8p Integrated Services Router Version-
   Cisco ≫ 4221 Integrated Services Router Version-
   Cisco ≫ 4321 Integrated Services Router Version-
   Cisco ≫ 4331 Integrated Services Router Version-
   Cisco ≫ 4351 Integrated Services Router Version-
   Cisco ≫ 4431 Integrated Services Router Version-
   Cisco ≫ 4451-x Integrated Services Router Version-
   Cisco ≫ 4461 Integrated Services Router Version-
   Cisco ≫ Csr 1000v Version-
   Cisco ≫ Isa 3000 Version-
Snort ≫ Snort Version < 2.9.17
Zu dieser CVE wurde keine CISA KEV oder CERT.AT-Warnung gefunden.
EPSS Metriken
Type Source Score Percentile
EPSS FIRST.org 0.42% 0.615
CVSS Metriken
Source Base Score Exploit Score Impact Score Vector string
nvd@nist.gov 7.5 3.9 3.6
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:H/A:N
nvd@nist.gov 5 10 2.9
AV:N/AC:L/Au:N/C:N/I:P/A:N
psirt@cisco.com 5.8 3.9 1.4
CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:C/C:N/I:L/A:N
CWE-693 Protection Mechanism Failure

The product does not use or incorrectly uses a protection mechanism that provides sufficient defense against directed attacks against the product.