CVE-2020-3220
Description
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.
Risk Information
Base Score
6.8
MODERATE
Vector
CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:C/C:N/I:N/A:H
EPSS Score
Exploitation Probability
0.419
Associated Vulnerability
| Vulnerability | OS Platform |
|---|---|
| Cisco IOS XE Software IPsec VPN Denial of Service Vulnerability For Cisco IOS XE Software | NCM |
| Insufficient Verification of Data Authenticity Vulnerability (CVE-2020-3220) | NCM |
Patch Details
Click to see the patches provided by ManageEngine for this CVE
| Patch ID | Patch Description |
|---|---|
| PATCH-1706107 | Security Update for Cisco IOS XE Software 5.2(1)SV5(1.3a) |
References
https://nvd.nist.gov/vuln/detail/CVE-2023-1234
https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2023-1234