CVE-2021-1495

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Summary

CVECVE-2021-1495
StatePUBLIC
Assigner[email protected]
Source PriorityCVE Program / NVD first with legacy fallback
Published2021-04-29 18:15:00 UTC
Updated2023-11-07 03:28:00 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 handling of specific HTTP header parameters. 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: CWE-755

NVD Known Affected Configurations (CPE 2.3)

TypeVendorProductVersionUpdateEditionLanguage
Hardware Cisco 1100-4g/6g Integrated Services Router - All All All
Hardware Cisco 1101 Integrated Services Router - All All All
Hardware Cisco 1109 Integrated Services Router - All All All
Hardware Cisco 1111x Integrated Services Router - All All All
Hardware Cisco 111x Integrated Services Router - All All All
Hardware Cisco 1120 Integrated Services Router - All All All
Hardware Cisco 1160 Integrated Services Router - All All All
Hardware Cisco 3000 Integrated Services Router - 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
Hardware Cisco C8200-1n-4t - All All All
Hardware Cisco C8200l-1n-4t - All All All
Hardware Cisco Catalyst 8300-1n1s-4t2x - All All All
Hardware Cisco Catalyst 8300-1n1s-6t - All All All
Hardware Cisco Catalyst 8300-2n2s-4t2x - All All All
Hardware Cisco Catalyst 8300-2n2s-6t - All All All
Hardware Cisco Catalyst 8500l - All All All
Application Cisco Firepower Threat Defense All All All All
Application Cisco Ios Xe All All All All
Operating System Cisco Ios Xe All All All All
Hardware Cisco Isr 1100-4g/6g - All All All
Hardware Cisco Isr 1101 - All All All
Hardware Cisco Isr 1109 - All All All
Hardware Cisco Isr 1111x - All All All
Hardware Cisco Isr 111x - All All All
Hardware Cisco Isr 1120 - All All All
Hardware Cisco Isr 1160 - All All All
Hardware Cisco Isr 3000 - All All All
Hardware Cisco Isr 4221 - All All All
Hardware Cisco Isr 4331 - All All All
Hardware Cisco Isr 4431 - All All All
Hardware Cisco Isr 4461 - 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
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)
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