CVE-2021-1223

Published on: 01/13/2021 12:00:00 AM UTC

Last Modified on: 05/22/2023 06:57:00 PM UTC

CVE-2021-1223 - advisory for cisco-sa-snort-filepolbypass-67DEwMe2

Source: Mitre Source: NIST CVE.ORG Print: PDF PDF
CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:C/C:N/I:L/A:N

Certain versions of 1100-4p Integrated Services Router from Cisco contain the following vulnerability:

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.

  • CVE-2021-1223 has been assigned by URL Logo [email protected] to track the vulnerability - currently rated as HIGH severity.
  • The Cisco Product Security Incident Response Team (PSIRT) is not aware of any public announcements or malicious use of the vulnerability that is described in this advisory.
  • Affected Vendor/Software: URL Logo Cisco - Cisco Firepower Threat Defense Software version n/a

CVSS3 Score: 7.5 - HIGH

Attack
Vector ⓘ		 Attack
Complexity		 Privileges
Required		 User
Interaction
NETWORK LOW NONE NONE
Scope Confidentiality
Impact		 Integrity
Impact		 Availability
Impact
UNCHANGED NONE HIGH NONE

CVSS2 Score: 5 - MEDIUM

Access
Vector ⓘ		 Access
Complexity		 Authentication
NETWORK LOW NONE
Confidentiality
Impact		 Integrity
Impact		 Availability
Impact
NONE PARTIAL NONE

CVE References

Description Tags ⓘ Link
Debian -- Security Information -- DSA-5354-1 snort www.debian.org
Depreciated Link
text/html
 URL Logo DEBIAN DSA-5354
Multiple Cisco Products Snort HTTP Detection Engine File Policy Bypass Vulnerability Vendor Advisory
tools.cisco.com
text/html
 URL Logo CISCO 20210113 Multiple Cisco Products Snort HTTP Detection Engine File Policy Bypass Vulnerability
[SECURITY] [DLA 3317-1] snort security update lists.debian.org
text/html
 URL Logo MLIST [debian-lts-announce] 20230210 [SECURITY] [DLA 3317-1] snort security update
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Related QID Numbers

  • 181554 Debian Security Update for snort (DLA 3317-1)
  • 181678 Debian Security Update for snort (DSA 5354-1)

Exploit/POC from Github

Multiple Cisco products are affected by a vulnerability in the Snort detection engine that could allow an unauthentic…

Known Affected Configurations (CPE V2.3)

Type Vendor Product Version Update Edition Language
Hardware Device InfoCisco1100-4p Integrated Services Router-AllAllAll
Hardware Device InfoCisco1100-8p Integrated Services Router-AllAllAll
Hardware Device InfoCisco1101-4p Integrated Services Router-AllAllAll
Hardware Device InfoCisco1109-2p Integrated Services Router-AllAllAll
Hardware Device InfoCisco1109-4p Integrated Services Router-AllAllAll
Hardware Device InfoCisco1111x-8p Integrated Services Router-AllAllAll
Hardware Device InfoCisco4221 Integrated Services Router-AllAllAll
Hardware Device InfoCisco4321 Integrated Services Router-AllAllAll
Hardware Device InfoCisco4331 Integrated Services Router-AllAllAll
Hardware Device InfoCisco4351 Integrated Services Router-AllAllAll
Hardware Device InfoCisco4431 Integrated Services Router-AllAllAll
Hardware Device InfoCisco4451-x Integrated Services Router-AllAllAll
Hardware Device InfoCisco4461 Integrated Services Router-AllAllAll
Hardware Device InfoCiscoCsr 1000v-AllAllAll
Hardware Device InfoCiscoCsr 1000v-AllAllAll
Hardware Device InfoCiscoCsr 1000v-AllAllAll
ApplicationCiscoFirepower Management Center2.9.14.0AllAllAll
ApplicationCiscoFirepower Management Center2.9.15AllAllAll
ApplicationCiscoFirepower Management Center2.9.16AllAllAll
ApplicationCiscoFirepower Management Center2.9.14.0AllAllAll
ApplicationCiscoFirepower Management Center2.9.15AllAllAll
ApplicationCiscoFirepower Management Center2.9.16AllAllAll
ApplicationCiscoFirepower Threat DefenseAllAllAllAll
ApplicationCiscoFirepower Threat DefenseAllAllAllAll
Operating
System		CiscoIos XeAllAllAllAll
Operating
System		CiscoIos XeAllAllAllAll
Hardware Device InfoCiscoIsa 3000-AllAllAll
Hardware Device InfoCiscoIsa 3000-AllAllAll
Hardware Device InfoCiscoIsa 3000-AllAllAll
Hardware Device InfoCiscoIsr 1100-4p-AllAllAll
Hardware Device InfoCiscoIsr 1100-4p-AllAllAll
Hardware Device InfoCiscoIsr 1100-4p-AllAllAll
Hardware Device InfoCiscoIsr 1100-8p-AllAllAll
Hardware Device InfoCiscoIsr 1100-8p-AllAllAll
Hardware Device InfoCiscoIsr 1100-8p-AllAllAll
Hardware Device InfoCiscoIsr 1101-4p-AllAllAll
Hardware Device InfoCiscoIsr 1101-4p-AllAllAll
Hardware Device InfoCiscoIsr 1101-4p-AllAllAll
Hardware Device InfoCiscoIsr 1109-2p-AllAllAll
Hardware Device InfoCiscoIsr 1109-2p-AllAllAll
Hardware Device InfoCiscoIsr 1109-2p-AllAllAll
Hardware Device InfoCiscoIsr 1109-4p-AllAllAll
Hardware Device InfoCiscoIsr 1109-4p-AllAllAll
Hardware Device InfoCiscoIsr 1109-4p-AllAllAll
Hardware Device InfoCiscoIsr 1111x-8p-AllAllAll
Hardware Device InfoCiscoIsr 1111x-8p-AllAllAll
Hardware Device InfoCiscoIsr 1111x-8p-AllAllAll
Hardware Device InfoCiscoIsr 4221-AllAllAll
Hardware Device InfoCiscoIsr 4221-AllAllAll
Hardware Device InfoCiscoIsr 4221-AllAllAll
Hardware Device InfoCiscoIsr 4321-AllAllAll
Hardware Device InfoCiscoIsr 4321-AllAllAll
Hardware Device InfoCiscoIsr 4321-AllAllAll
Hardware Device InfoCiscoIsr 4331-AllAllAll
Hardware Device InfoCiscoIsr 4331-AllAllAll
Hardware Device InfoCiscoIsr 4331-AllAllAll
Hardware Device InfoCiscoIsr 4351-AllAllAll
Hardware Device InfoCiscoIsr 4351-AllAllAll
Hardware Device InfoCiscoIsr 4351-AllAllAll
Hardware Device InfoCiscoIsr 4431-AllAllAll
Hardware Device InfoCiscoIsr 4431-AllAllAll
Hardware Device InfoCiscoIsr 4431-AllAllAll
Hardware Device InfoCiscoIsr 4451-x-AllAllAll
Hardware Device InfoCiscoIsr 4451-x-AllAllAll
Hardware Device InfoCiscoIsr 4451-x-AllAllAll
Hardware Device InfoCiscoIsr 4461-AllAllAll
Hardware Device InfoCiscoIsr 4461-AllAllAll
Hardware Device InfoCiscoIsr 4461-AllAllAll
ApplicationSnortSnortAllAllAllAll
ApplicationSnortSnortAllAllAllAll
  • cpe:2.3:h:cisco:1100-4p_integrated_services_router:-:*:*:*:*:*:*:*:
  • cpe:2.3:h:cisco:1100-8p_integrated_services_router:-:*:*:*:*:*:*:*:
  • cpe:2.3:h:cisco:1101-4p_integrated_services_router:-:*:*:*:*:*:*:*:
  • cpe:2.3:h:cisco:1109-2p_integrated_services_router:-:*:*:*:*:*:*:*:
  • cpe:2.3:h:cisco:1109-4p_integrated_services_router:-:*:*:*:*:*:*:*:
  • cpe:2.3:h:cisco:1111x-8p_integrated_services_router:-:*:*:*:*:*:*:*:
  • cpe:2.3:h:cisco:4221_integrated_services_router:-:*:*:*:*:*:*:*:
  • cpe:2.3:h:cisco:4321_integrated_services_router:-:*:*:*:*:*:*:*:
  • cpe:2.3:h:cisco:4331_integrated_services_router:-:*:*:*:*:*:*:*:
  • cpe:2.3:h:cisco:4351_integrated_services_router:-:*:*:*:*:*:*:*:
  • cpe:2.3:h:cisco:4431_integrated_services_router:-:*:*:*:*:*:*:*:
  • cpe:2.3:h:cisco:4451-x_integrated_services_router:-:*:*:*:*:*:*:*:
  • cpe:2.3:h:cisco:4461_integrated_services_router:-:*:*:*:*:*:*:*:
  • cpe:2.3:h:cisco:csr_1000v:-:*:*:*:*:*:*:*:
  • cpe:2.3:h:cisco:csr_1000v:-:*:*:*:*:*:*:*:
  • cpe:2.3:h:cisco:csr_1000v:-:*:*:*:*:*:*:*:
  • cpe:2.3:a:cisco:firepower_management_center:2.9.14.0:*:*:*:*:*:*:*:
  • 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:2.9.14.0:*:*:*:*:*:*:*:
  • 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_threat_defense:*:*:*:*:*:*:*:*:
  • cpe:2.3:a:cisco:firepower_threat_defense:*:*:*:*:*:*:*:*:
  • cpe:2.3:o:cisco:ios_xe:*:*:*:*:*:*:*:*:
  • cpe:2.3:o:cisco:ios_xe:*:*:*:*:*:*:*:*:
  • cpe:2.3:h:cisco:isa_3000:-:*:*:*:*:*:*:*:
  • cpe:2.3:h:cisco:isa_3000:-:*:*:*:*:*:*:*:
  • cpe:2.3:h:cisco:isa_3000:-:*:*:*:*:*:*:*:
  • cpe:2.3:h:cisco:isr_1100-4p:-:*:*:*:*:*:*:*:
  • cpe:2.3:h:cisco:isr_1100-4p:-:*:*:*:*:*:*:*:
  • cpe:2.3:h:cisco:isr_1100-4p:-:*:*:*:*:*:*:*:
  • cpe:2.3:h:cisco:isr_1100-8p:-:*:*:*:*:*:*:*:
  • cpe:2.3:h:cisco:isr_1100-8p:-:*:*:*:*:*:*:*:
  • cpe:2.3:h:cisco:isr_1100-8p:-:*:*:*:*:*:*:*:
  • cpe:2.3:h:cisco:isr_1101-4p:-:*:*:*:*:*:*:*:
  • cpe:2.3:h:cisco:isr_1101-4p:-:*:*:*:*:*:*:*:
  • cpe:2.3:h:cisco:isr_1101-4p:-:*:*:*:*:*:*:*:
  • cpe:2.3:h:cisco:isr_1109-2p:-:*:*:*:*:*:*:*:
  • cpe:2.3:h:cisco:isr_1109-2p:-:*:*:*:*:*:*:*:
  • cpe:2.3:h:cisco:isr_1109-2p:-:*:*:*:*:*:*:*:
  • cpe:2.3:h:cisco:isr_1109-4p:-:*:*:*:*:*:*:*:
  • cpe:2.3:h:cisco:isr_1109-4p:-:*:*:*:*:*:*:*:
  • cpe:2.3:h:cisco:isr_1109-4p:-:*:*:*:*:*:*:*:
  • cpe:2.3:h:cisco:isr_1111x-8p:-:*:*:*:*:*:*:*:
  • cpe:2.3:h:cisco:isr_1111x-8p:-:*:*:*:*:*:*:*:
  • cpe:2.3:h:cisco:isr_1111x-8p:-:*:*:*:*:*:*:*:
  • cpe:2.3:h:cisco:isr_4221:-:*:*:*:*:*:*:*:
  • cpe:2.3:h:cisco:isr_4221:-:*:*:*:*:*:*:*:
  • cpe:2.3:h:cisco:isr_4221:-:*:*:*:*:*:*:*:
  • cpe:2.3:h:cisco:isr_4321:-:*:*:*:*:*:*:*:
  • cpe:2.3:h:cisco:isr_4321:-:*:*:*:*:*:*:*:
  • cpe:2.3:h:cisco:isr_4321:-:*:*:*:*:*:*:*:
  • cpe:2.3:h:cisco:isr_4331:-:*:*:*:*:*:*:*:
  • cpe:2.3:h:cisco:isr_4331:-:*:*:*:*:*:*:*:
  • cpe:2.3:h:cisco:isr_4331:-:*:*:*:*:*:*:*:
  • cpe:2.3:h:cisco:isr_4351:-:*:*:*:*:*:*:*:
  • cpe:2.3:h:cisco:isr_4351:-:*:*:*:*:*:*:*:
  • cpe:2.3:h:cisco:isr_4351:-:*:*:*:*:*:*:*:
  • cpe:2.3:h:cisco:isr_4431:-:*:*:*:*:*:*:*:
  • cpe:2.3:h:cisco:isr_4431:-:*:*:*:*:*:*:*:
  • cpe:2.3:h:cisco:isr_4431:-:*:*:*:*:*:*:*:
  • cpe:2.3:h:cisco:isr_4451-x:-:*:*:*:*:*:*:*:
  • cpe:2.3:h:cisco:isr_4451-x:-:*:*:*:*:*:*:*:
  • cpe:2.3:h:cisco:isr_4451-x:-:*:*:*:*:*:*:*:
  • cpe:2.3:h:cisco:isr_4461:-:*:*:*:*:*:*:*:
  • cpe:2.3:h:cisco:isr_4461:-:*:*:*:*:*:*:*:
  • cpe:2.3:h:cisco:isr_4461:-:*:*:*:*:*:*:*:
  • cpe:2.3:a:snort:snort:*:*:*:*:*:*:*:*:
  • cpe:2.3:a:snort:snort:*:*:*:*:*:*:*:*:

Social Mentions

Source Title Posted (UTC)
Twitter Icon @RemotelyAlerts Severity: ?? | Multiple Cisco products are affected by ... | CVE-2021-1223 | Link for more: alerts.remotelyrmm.com/CVE-2021-1223 2022-08-05 20:31:46
Twitter Icon @LinInfoSec Snort - CVE-2021-1223: tools.cisco.com/security/cente… 2022-08-05 21:01:43
Twitter Icon @sidfm_jp Snort の HTTP 検出エンジンの処理にファイルポリシーを迂回されるなど複数の問題 (CVE-2021-1223, CVE-2021-1224) [45080] sid.softek.jp/content/show/4… #SIDfm #脆弱性情報 2023-02-21 02:30:04
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