CVE-2023-20109
Key Information
- Vendor
- Cisco
- Status
- IOS
- Cisco IOS XE Software
- Vendor
- CVE Published:
- 27 September 2023
Badges
Summary
A vulnerability in the Cisco Group Encrypted Transport VPN (GET VPN) feature of Cisco IOS Software and Cisco IOS XE Software could allow an authenticated, remote attacker who has administrative control of either a group member or a key server to execute arbitrary code on an affected device or cause the device to crash. This vulnerability is due to insufficient validation of attributes in the Group Domain of Interpretation (GDOI) and G-IKEv2 protocols of the GET VPN feature. An attacker could exploit this vulnerability by either compromising an installed key server or modifying the configuration of a group member to point to a key server that is controlled by the attacker. A successful exploit could allow the attacker to execute arbitrary code and gain full control of the affected system or cause the affected system to reload, resulting in a denial of service (DoS) condition. For more information, see the Details ["#details"] section of this advisory.
CISA Reported
CISA provides regional cyber and physical services to support security and resilience across the United States. CISA monitor the most dangerious vulnerabilities and have identifed CVE-2023-20109 as being exploited but is not known by the CISA to be used in ransomware campaigns. This is subject to change at pace
The CISA's recommendation is: Apply mitigations per vendor instructions or discontinue use of the product if mitigations are unavailable.
Affected Version(s)
IOS = 12.4(24)T
IOS = 12.4(24)T3
IOS = 12.4(22)T1
News Articles
Security Affairs CVSS V3.1
Timeline
- 👾
Exploit exists.
First article discovered by Security Affairs
Vulnerability published.
Vulnerability Reserved.