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CVE-2023-20109 — Cisco IOS and IOS XE Group Encrypted Transport VPN Out-of-Bounds Write Vulnerability

provenance: imported · CVE: CVE-2023-20109

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