CVE-2023-20109 — Cisco IOS and IOS XE Group Encrypted Transport VPN Out-of-Bounds Write Vulnerability
CVE-2023-20109: Cisco IOS and IOS XE Group Encrypted Transport VPN Out-of-Bounds Write Vulnerability
CISA Known Exploited Vulnerability (KEV)
| Vendor / project | Cisco |
| Product | IOS and IOS XE |
| Date added | 2023-10-10 |
| Due date | 2023-10-31 |
| Ransomware campaign use | Unknown |
Description
Cisco IOS and IOS XE contain an out-of-bounds write vulnerability in the Group Encrypted Transport VPN (GET VPN) feature that could allow an authenticated, remote attacker who has administrative control of either a group member or a key server to execute malicious code or cause a device to crash.
Required action (CISA)
Apply mitigations per vendor instructions or discontinue use of the product if mitigations are unavailable.
Notes
https://sec.cloudapps.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-getvpn-rce-g8qR68sx; https://nvd.nist.gov/vuln/detail/CVE-2023-20109
References
- NVD: https://nvd.nist.gov/vuln/detail/CVE-2023-20109
- KEV catalog: https://www.cisa.gov/known-exploited-vulnerabilities-catalog