CVE-2020-3220
published 2020-06-03CVE-2020-3220: A vulnerability in the hardware crypto driver of Cisco IOS XE Software for Cisco 4300 Series Integrated Services Routers and Cisco Catalyst 9800-L Wireless…
PriorityP434medium6.8CVSS 3.1
AVNACHPRNUINSCCNINAH
EPSS
0.53%
41.6th percentile
A vulnerability in the hardware crypto driver of Cisco IOS XE Software for Cisco 4300 Series Integrated Services Routers and Cisco Catalyst 9800-L Wireless Controllers could allow an unauthenticated, remote attacker to disconnect legitimate IPsec VPN sessions to an affected device. The vulnerability is due to insufficient verification of authenticity of received Encapsulating Security Payload (ESP) packets. An attacker could exploit this vulnerability by tampering with ESP cleartext values as a man-in-the-middle.
Affected
70 ranges· showing 25
| Vendor | Product | Version range | Fixed in |
|---|---|---|---|
| cisco | cisco_ios_xe_software_16.4.1 | — | — |
| cisco | ios_xe | — | — |
| cisco | ios_xe | — | — |
| cisco | ios_xe | — | — |
| cisco | ios_xe | — | — |
| cisco | ios_xe | — | — |
| cisco | ios_xe | — | — |
| cisco | ios_xe | — | — |
| cisco | ios_xe | — | — |
| cisco | ios_xe | — | — |
| cisco | ios_xe | — | — |
| cisco | ios_xe | — | — |
| cisco | ios_xe | — | — |
| cisco | ios_xe | — | — |
| cisco | ios_xe | — | — |
| cisco | ios_xe | — | — |
| cisco | ios_xe | — | — |
| cisco | ios_xe | — | — |
| cisco | ios_xe | — | — |
| cisco | ios_xe | — | — |
| cisco | ios_xe | — | — |
| cisco | ios_xe | — | — |
| cisco | ios_xe | — | — |
| cisco | ios_xe | — | — |
| cisco | ios_xe | — | — |
CVSS provenance
nvdv3.16.8MEDIUMCVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:C/C:N/I:N/A:H
nvdv3.06.8MEDIUMCVSS:3.0/AV:N/AC:H/PR:N/UI:N/S:C/C:N/I:N/A:H
nvdv2.07.1HIGHAV:N/AC:M/Au:N/C:N/I:N/A:C
vendor_cisco6.8MEDIUM
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GHSA
GHSA-rgv9-38w5-x798: A vulnerability in the hardware crypto driver of Cisco IOS XE Software for Cisco 4300 Series Integrated Services Routers and Cisco Catalyst 9800-L Wir
ghsa_unreviewed·2022-05-24
CVE-2020-3220 [HIGH] CWE-345 GHSA-rgv9-38w5-x798: A vulnerability in the hardware crypto driver of Cisco IOS XE Software for Cisco 4300 Series Integrated Services Routers and Cisco Catalyst 9800-L Wir
A vulnerability in the hardware crypto driver of Cisco IOS XE Software for Cisco 4300 Series Integrated Services Routers and Cisco Catalyst 9800-L Wireless Controllers could allow an unauthenticated, remote attacker to disconnect legitimate IPsec VPN sessions to an affected device. The vulnerability is due to insufficient verification of authenticity of received Encapsulating Security Payload (ESP) packets. An attacker could exploit this vulnerability by tampering with ESP cleartext values as a man-in-the-middle.
Cisco
Cisco IOS XE Software IPsec VPN Denial of Service Vulnerability
vendor_cisco·2020-06-03·CVSS 6.8
CVE-2020-3220 [MEDIUM] CWE-345 Cisco IOS XE Software IPsec VPN Denial of Service Vulnerability
Cisco IOS XE Software IPsec VPN Denial of Service Vulnerability
A vulnerability in the hardware crypto driver of Cisco IOS XE Software for Cisco 4300 Series Integrated Services Routers and Cisco Catalyst 9800-L Wireless Controllers could allow an unauthenticated, remote attacker to disconnect legitimate IPsec VPN sessions to an affected device.
The vulnerability is due to insufficient verification of authenticity of received Encapsulating Security Payload (ESP) packets. An attacker could exploit this vulnerability by tampering with ESP cleartext values as a man-in-the-middle.
Cisco has released software updates that address this vulnerability. There are no workarounds that address this vulnerability.
This advisory is available at the following link:https://sec.cloudapps.cisco.com/securit
Cisco
Cisco IOS XE Software IPsec VPN Denial of Service Vulnerability
vendor_cisco·CVSS 3.0
CVE-2020-3220 Cisco IOS XE Software IPsec VPN Denial of Service Vulnerability
CVE-2020-3220: Cisco IOS XE Software IPsec VPN Denial of Service Vulnerability
A vulnerability in the hardware crypto driver of Cisco IOS XE Software for Cisco 4300 Series Integrated Services Routers and Cisco Catalyst 9800-L Wireless Controllers could allow an unauthenticated, remote attacker to disconnect legitimate IPsec VPN sessions to an affected device. The vulnerability is due to insufficient verification of authenticity of received Encapsulating Security Payload (ESP) packets. An attacker could exploit this vulnerability by tampering with ESP cleartext values as a man-in-the-middle. Cisco has released software updates that address this vulnerability. There are no
CVSS: 3.0
CWE: CWE-345, CWE-345
Bug IDs: CSCvq67658
No detection rules found.
No public exploits indexed.
No writeups or analysis indexed.
2020-06-03
Published