An issue was discovered in Avira Phantom VPN through 2.23.1 for macOS. The VPN client insecurely configures the operating system such that all IP traffic to the VPN server's IP address is sent in plaintext outside the VPN tunnel, even if this traffic is not generated by the VPN client, while simultaneously using plaintext DNS to look up the VPN server's IP address. This allows an adversary to trick the victim into sending traffic to arbitrary IP addresses in plaintext outside the VPN tunnel. NOTE: the tunnelcrack.mathyvanhoef.com website uses this CVE ID to refer more generally to "ServerIP attack, combined with DNS spoofing, that can leak traffic to an arbitrary IP address" rather than to only Avira Phantom VPN.
References
Link | Resource |
---|---|
https://psirt.global.sonicwall.com/vuln-detail/SNWLID-2023-0015 | |
https://tunnelcrack.mathyvanhoef.com/details.html | Exploit Third Party Advisory |
https://www.avira.com/en/free-vpn | Product |
https://psirt.global.sonicwall.com/vuln-detail/SNWLID-2023-0015 | |
https://tunnelcrack.mathyvanhoef.com/details.html | Exploit Third Party Advisory |
https://www.avira.com/en/free-vpn | Product |
Configurations
History
21 Nov 2024, 08:10
Type | Values Removed | Values Added |
---|---|---|
References | () https://psirt.global.sonicwall.com/vuln-detail/SNWLID-2023-0015 - | |
References | () https://tunnelcrack.mathyvanhoef.com/details.html - Exploit, Third Party Advisory | |
References | () https://www.avira.com/en/free-vpn - Product |
31 Oct 2023, 09:15
Type | Values Removed | Values Added |
---|---|---|
References |
|
17 Aug 2023, 16:23
Type | Values Removed | Values Added |
---|---|---|
CVSS |
v2 : v3 : |
v2 : unknown
v3 : 7.3 |
CPE | cpe:2.3:a:avira:phantom_vpn:*:*:*:*:*:macos:*:* | |
CWE | CWE-319 | |
First Time |
Avira
Avira phantom Vpn |
|
References | (MISC) https://tunnelcrack.mathyvanhoef.com/details.html - Exploit, Third Party Advisory | |
References | (MISC) https://www.avira.com/en/free-vpn - Product |
09 Aug 2023, 23:15
Type | Values Removed | Values Added |
---|---|---|
New CVE |
Information
Published : 2023-08-09 23:15
Updated : 2024-11-21 08:10
NVD link : CVE-2023-36673
Mitre link : CVE-2023-36673
CVE.ORG link : CVE-2023-36673
JSON object : View
Products Affected
avira
- phantom_vpn
CWE
CWE-319
Cleartext Transmission of Sensitive Information