CVE-2020-3299

MITRE NVD CVE.ORG Print: PDF PDF

Summary

CVECVE-2020-3299
StatePUBLIC
Assigner[email protected]
Source PriorityCVE Program / NVD first with legacy fallback
Published2020-10-21 19:15:00 UTC
Updated2023-05-22 18:57:00 UTC
DescriptionMultiple 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.

Risk And Classification

Problem Types: NVD-CWE-Other

NVD Known Affected Configurations (CPE 2.3)

TypeVendorProductVersionUpdateEditionLanguage
Hardware Cisco 1100-4p - All All All
Hardware Cisco 1100-4p - All All All
Hardware Cisco 1100-8p - All All All
Hardware Cisco 1100-8p - All All All
Hardware Cisco 1101-4p - All All All
Hardware Cisco 1101-4p - All All All
Hardware Cisco 1109-2p - All All All
Hardware Cisco 1109-2p - All All All
Hardware Cisco 1109-4p - All All All
Hardware Cisco 1109-4p - All All All
Hardware Cisco 1111x-8p - All All All
Hardware Cisco 1111x-8p - All All All
Hardware Cisco 4221 Integrated Services Router - All All All
Hardware Cisco 4331 Integrated Services Router - All All All
Hardware Cisco 4431 Integrated Services Router - All All All
Hardware Cisco 4461 Integrated Services Router - All All All
Application Cisco Cloud Services Router 1000v - All All All
Application Cisco Cloud Services Router 1000v - All All All
Application Cisco Firepower Threat Defense All All All All
Application Cisco Firepower Threat Defense All All All All
Hardware Cisco Isa 3000 - All All All
Hardware Cisco Isa 3000 - All All All
Application Cisco Isrv - All All All
Application Cisco Isrv - All All All
Hardware Cisco Isr 4221 - All All All
Hardware Cisco Isr 4221 - All All All
Hardware Cisco Isr 4331 - All All All
Hardware Cisco Isr 4331 - All All All
Hardware Cisco Isr 4431 - All All All
Hardware Cisco Isr 4431 - All All All
Hardware Cisco Isr 4461 - All All All
Hardware Cisco Isr 4461 - All All All
Hardware Cisco Meraki Mx - All All All
Hardware Cisco Meraki Mx - All All All
Application Snort Snort All All All All
Application Snort Snort All All All All

References

ReferenceSourceLinkTags
Multiple Cisco Products SNORT HTTP Detection Engine File Policy Bypass Vulnerability CISCO tools.cisco.com Vendor Advisory
Debian -- Security Information -- DSA-5354-1 snort DEBIAN www.debian.org
[SECURITY] [DLA 3317-1] snort security update MLIST lists.debian.org
CVE Program record CVE.ORG www.cve.org canonical
NVD vulnerability detail NVD nvd.nist.gov canonical, analysis

Legacy QID Mappings

  • 181554 Debian Security Update for snort (DLA 3317-1)
  • 181678 Debian Security Update for snort (DSA 5354-1)
© CVE.report 2026 |

Use of this information constitutes acceptance for use in an AS IS condition. There are NO warranties, implied or otherwise, with regard to this information or its use. Any use of this information is at the user's risk. It is the responsibility of user to evaluate the accuracy, completeness or usefulness of any information, opinion, advice or other content. EACH USER WILL BE SOLELY RESPONSIBLE FOR ANY consequences of his or her direct or indirect use of this web site. ALL WARRANTIES OF ANY KIND ARE EXPRESSLY DISCLAIMED. This site will NOT BE LIABLE FOR ANY DIRECT, INDIRECT or any other kind of loss.

CVE, CWE, and OVAL are registred trademarks of The MITRE Corporation and the authoritative source of CVE content is MITRE's CVE web site. This site includes MITRE data granted under the following license.

CVE.report and Source URL Uptime Status status.cve.report