CVE-2021-40116
published 2021-10-27CVE-2021-40116: Multiple Cisco products are affected by a vulnerability in Snort rules that could allow an unauthenticated, remote attacker to cause a denial of service (DoS)…
PriorityP342high7.5CVSS 3.1
AVNACLPRNUINSUCNINAH
EPSS
1.35%
68.3th percentile
Multiple Cisco products are affected by a vulnerability in Snort rules that could allow an unauthenticated, remote attacker to cause a denial of service (DoS) condition on an affected device.The vulnerability is due to improper handling of the Block with Reset or Interactive Block with Reset actions if a rule is configured without proper constraints. An attacker could exploit this vulnerability by sending a crafted IP packet to the affected device. A successful exploit could allow the attacker to cause through traffic to be dropped. Note: Only products with Snort3 configured and either a rule with Block with Reset or Interactive Block with Reset actions configured are vulnerable. Products configured with Snort2 are not vulnerable.
Affected
8 ranges
| Vendor | Product | Version range | Fixed in |
|---|---|---|---|
| cisco | cisco_firepower_threat_defense_software | — | — |
| cisco | firepower_threat_defense | >= 6.4.0 < 6.4.0.13 | 6.4.0.13 |
| cisco | firepower_threat_defense | >= 6.6.0 < 6.6.5.1 | 6.6.5.1 |
| cisco | firepower_threat_defense | >= 6.7.0 < 6.7.0.3 | 6.7.0.3 |
| cisco | firepower_threat_defense | >= 7.0.0 < 7.0.1 | 7.0.1 |
| cisco | products_snort_rule | — | — |
| cisco | secure_firewall_management_center | — | — |
| cisco | snort | >= 3.0.0.0 < 3.1.0.100 | 3.1.0.100 |
CVSS provenance
nvdv3.17.5HIGHCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
nvdv2.07.1HIGHAV:N/AC:M/Au:N/C:N/I:N/A:C
vendor_cisco8.6HIGH
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Cisco
Multiple Cisco Products Snort Rule Denial of Service Vulnerability
vendor_cisco·2021-10-27·CVSS 8.6
CVE-2021-40116 [HIGH] CWE-241 Multiple Cisco Products Snort Rule Denial of Service Vulnerability
Multiple Cisco Products Snort Rule Denial of Service Vulnerability
Multiple Cisco products are affected by a vulnerability in Snort rules that could allow an unauthenticated, remote attacker to cause a denial of service (DoS) condition on an affected device.The vulnerability is due to improper handling of the Block with Reset or Interactive Block with Reset actions if a rule is configured without proper constraints. An attacker could exploit this vulnerability by sending a crafted IP packet to the affected device. A successful exploit could allow the attacker to cause through traffic to be dropped.
Note: Only products with Snort3 configured and either a rule with Block with Reset or Interactive Block with Reset actions configured are vulnerable. Products configured with Snort2 are not vu
Cisco
Multiple Cisco Products Snort Rule Denial of Service Vulnerability
vendor_cisco·CVSS 3.1
CVE-2021-40116 Multiple Cisco Products Snort Rule Denial of Service Vulnerability
CVE-2021-40116: Multiple Cisco Products Snort Rule Denial of Service Vulnerability
Multiple Cisco products are affected by a vulnerability in Snort rules that could allow an unauthenticated, remote attacker to cause a denial of service (DoS) condition on an affected device. The vulnerability is due to improper handling of the Block with Reset or Interactive Block with Reset actions if a rule is configured without proper constraints. An attacker could exploit this vulnerability by sending a crafted IP packet to the affected device. A successful exploit could allow the attacker to cause through traffic to be dropped. Note: Only products with Snort3 configured and either a rule with Block with Reset or Interactive Block with Reset actions configured are vulnerable. Products configured with Sn
GHSA
GHSA-w5gp-j3p5-92ch: Multiple Cisco products are affected by a vulnerability in Snort rules that could allow an unauthenticated, remote attacker to cause a denial of servi
ghsa_unreviewed·2022-05-24
CVE-2021-40116 [HIGH] CWE-241 GHSA-w5gp-j3p5-92ch: Multiple Cisco products are affected by a vulnerability in Snort rules that could allow an unauthenticated, remote attacker to cause a denial of servi
Multiple Cisco products are affected by a vulnerability in Snort rules that could allow an unauthenticated, remote attacker to cause a denial of service (DoS) condition on an affected device.The vulnerability is due to improper handling of the Block with Reset or Interactive Block with Reset actions if a rule is configured without proper constraints. An attacker could exploit this vulnerability by sending a crafted IP packet to the affected device. A successful exploit could allow the attacker to cause through traffic to be dropped. Note: Only products with Snort3 configured and either a rule with Block with Reset or Interactive Block with Reset actions configured are vulnerable. Products configured with Snort2 are not vulnerable.
No detection rules found.
No public exploits indexed.
No writeups or analysis indexed.
2021-10-27
Published