Description (CNA)
DHCP can add routes to a client’s routing table via the classless static route option (121). VPN-based security solutions that rely on routes to redirect traffic can be forced to leak traffic over the physical interface. An attacker on the same local network can read, disrupt, or possibly modify network traffic that was expected to be protected by the VPN.
Affected (CNA)
| Vendor / product | Versions |
|---|---|
| IETF / DHCP | affected 0 |
CWE
CWE-306, CWE-501
References
- https://datatracker.ietf.org/doc/html/rfc2131#section-7
- https://datatracker.ietf.org/doc/html/rfc3442#section-7
- https://tunnelvisionbug.com/
- https://www.leviathansecurity.com/research/tunnelvision
- https://news.ycombinator.com/item?id=40279632
- https://arstechnica.com/security/2024/05/novel-attack-against-virtually-all-vpn-apps-neuters-their-entire-purpose/
- https://krebsonsecurity.com/2024/05/why-your-vpn-may-not-be-as-secure-as-it-claims/
- https://issuetracker.google.com/issues/263721377
- https://mullvad.net/en/blog/evaluating-the-impact-of-tunnelvision
- https://www.zscaler.com/blogs/security-research/cve-2024-3661-k-tunnelvision-exposes-vpn-bypass-vulnerability
- https://lowendtalk.com/discussion/188857/a-rogue-dhcp-server-within-your-network-can-and-will-hijack-your-vpn-traffic
- https://news.ycombinator.com/item?id=40284111
- https://www.agwa.name/blog/post/hardening_openvpn_for_def_con
- https://www.theregister.com/2024/05/07/vpn_tunnelvision_dhcp/
- https://support.citrix.com/article/CTX677069/cloud-software-group-security-advisory-for-cve20243661
- https://www.watchguard.com/wgrd-psirt/advisory/wgsa-2024-00009
- https://bst.cisco.com/quickview/bug/CSCwk05814
- https://security.paloaltonetworks.com/CVE-2024-3661
- https://fortiguard.fortinet.com/psirt/FG-IR-24-170
- https://my.f5.com/manage/s/article/K000139553
ADP enrichment
No English description supplied.
- https://datatracker.ietf.org/doc/html/rfc2131#section-7
- https://datatracker.ietf.org/doc/html/rfc3442#section-7
- https://tunnelvisionbug.com/
- https://www.leviathansecurity.com/research/tunnelvision
- https://news.ycombinator.com/item?id=40279632
- https://arstechnica.com/security/2024/05/novel-attack-against-virtually-all-vpn-apps-neuters-their-entire-purpose/
- https://krebsonsecurity.com/2024/05/why-your-vpn-may-not-be-as-secure-as-it-claims/
- https://issuetracker.google.com/issues/263721377
- https://mullvad.net/en/blog/evaluating-the-impact-of-tunnelvision
- https://www.zscaler.com/blogs/security-research/cve-2024-3661-k-tunnelvision-exposes-vpn-bypass-vulnerability
- https://lowendtalk.com/discussion/188857/a-rogue-dhcp-server-within-your-network-can-and-will-hijack-your-vpn-traffic
- https://news.ycombinator.com/item?id=40284111
- https://www.agwa.name/blog/post/hardening_openvpn_for_def_con
- https://www.theregister.com/2024/05/07/vpn_tunnelvision_dhcp/
- https://support.citrix.com/article/CTX677069/cloud-software-group-security-advisory-for-cve20243661
- https://www.watchguard.com/wgrd-psirt/advisory/wgsa-2024-00009
- https://bst.cisco.com/quickview/bug/CSCwk05814
- https://security.paloaltonetworks.com/CVE-2024-3661
- https://fortiguard.fortinet.com/psirt/FG-IR-24-170
- https://my.f5.com/manage/s/article/K000139553
No English description supplied.
No references supplied.