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CVE-2021-1223

Multiple Cisco Products Snort HTTP Detection Engine File Policy Bypass Vulnerability

Published: Jan 13, 2021Updated: Nov 26, 2024 Sources: CVE List NVD BDUCWE-693
NVD MITRE
7.5CVSSHIGH
EPSS Score
2.0%
Top 22.0%
CISA KEV
Not in KEV
Exploits
0 Known
Remediation
Patch Available

Description

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.

CVSS Vector Breakdown

AV:NAC:LPR:NUI:NS:UC:NI:HA:N
Exploitability
AV:NAttack Vector
Network
AC:LAttack Complexity
Low
PR:NPrivileges Required
None
UI:NUser Interaction
None
Scope
S:UScope
Unchanged
Impact
C:NConfidentiality
None
I:HIntegrity
High
A:NAvailability
None
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Weaknesses

CWE-693NVD-CWE-Other

Affected Products

Cisco Firepower Threat Defense SoftwareCiscoNetworking Infrastructure
firepower threat defenseciscoNetworking Infrastructure
secure firewall management centerciscoNetworking Infrastructure
ios xecisco
On-premFirmware
Networking Infrastructure / router-switch
snortsnort
On-prem
Security Products / vuln-mgmt-scanner
ciscocommercialUSNetworking Infrastructureaka cisco systems, cisco systems inc.
snortoss-projectUSSecurity Products
and 5 more affected products View all →

Exploitability

0 exploit sources identified

Exploit details including PoC links, Metasploit modules, and scanner templates are available after registration.

View exploit details
Official Patch Available

References

https://tools.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-snort-filepolbypass-67DEwMe2
tools.cisco.com
https://lists.debian.org/debian-lts-announce/2023/02/msg00011.html
lists.debian.org
https://www.debian.org/security/2023/dsa-5354
debian.org
and 1 more references View all →

Timeline

Published
Jan 13, 2021
Last Updated
Nov 26, 2024

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