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 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.
Published: 2021-04-29
Score: 5.8 Medium
EPSS: < 1% Very Low
KEV: No
Impact: n/a
Action: n/a
AI Analysis

No analysis available yet.

Remediation

No remediation available yet.

Tracking

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Advisories
Source ID Title
Debian DLA Debian DLA DLA-3317-1 snort security update
Debian DSA Debian DSA DSA-5354-1 snort security update
EUVD EUVD EUVD-2021-6962 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 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.
History

Sat, 09 Nov 2024 00:15:00 +0000

Type Values Removed Values Added
Metrics ssvc

{'options': {'Automatable': 'yes', 'Exploitation': 'none', 'Technical Impact': 'partial'}, 'version': '2.0.3'}


Subscriptions

Cisco 1100-4g\/6g Integrated Services Router 1101 Integrated Services Router 1109 Integrated Services Router 1111x Integrated Services Router 111x Integrated Services Router 1120 Integrated Services Router 1160 Integrated Services Router 3000 Integrated Services Router 4221 Integrated Services Router 4331 Integrated Services Router 4431 Integrated Services Router 4461 Integrated Services Router C8200-1n-4t C8200l-1n-4t Catalyst 8300-1n1s-4t2x Catalyst 8300-1n1s-6t Catalyst 8300-2n2s-4t2x Catalyst 8300-2n2s-6t Catalyst 8500l Firepower Threat Defense Ios Xe
Snort Snort
cve-icon MITRE

Status: PUBLISHED

Assigner: cisco

Published:

Updated: 2024-11-08T23:22:35.276Z

Reserved: 2020-11-13T00:00:00.000Z

Link: CVE-2021-1495

cve-icon Vulnrichment

Updated: 2024-08-03T16:11:17.563Z

cve-icon NVD

Status : Modified

Published: 2021-04-29T18:15:09.430

Modified: 2024-11-21T05:44:28.830

Link: CVE-2021-1495

cve-icon Redhat

No data.

cve-icon OpenCVE Enrichment

No data.

Weaknesses