CVE-2024-3661 (GCVE-0-2024-3661)
Vulnerability from cvelistv5
Published
2024-05-06 18:31
Modified
2024-08-28 19:09
Severity ?
7.6 (High) - CVSS:3.1/AV:A/AC:L/PR:N/UI:N/S:U/C:H/I:L/A:L
CWE
  • CWE-306 - Missing Authentication for Critical Function
  • CWE-501 - Trust Boundary Violation
Summary
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.
References
9119a7d8-5eab-497f-8521-727c672e3725 https://arstechnica.com/security/2024/05/novel-attack-against-virtually-all-vpn-apps-neuters-their-entire-purpose/ Press/Media Coverage
9119a7d8-5eab-497f-8521-727c672e3725 https://bst.cisco.com/quickview/bug/CSCwk05814 Vendor Advisory
9119a7d8-5eab-497f-8521-727c672e3725 https://datatracker.ietf.org/doc/html/rfc2131#section-7 Related
9119a7d8-5eab-497f-8521-727c672e3725 https://datatracker.ietf.org/doc/html/rfc3442#section-7 Related
9119a7d8-5eab-497f-8521-727c672e3725 https://fortiguard.fortinet.com/psirt/FG-IR-24-170 Vendor Advisory
9119a7d8-5eab-497f-8521-727c672e3725 https://issuetracker.google.com/issues/263721377 Issue Tracking
9119a7d8-5eab-497f-8521-727c672e3725 https://krebsonsecurity.com/2024/05/why-your-vpn-may-not-be-as-secure-as-it-claims/ Press/Media Coverage
9119a7d8-5eab-497f-8521-727c672e3725 https://lowendtalk.com/discussion/188857/a-rogue-dhcp-server-within-your-network-can-and-will-hijack-your-vpn-traffic Issue Tracking
9119a7d8-5eab-497f-8521-727c672e3725 https://mullvad.net/en/blog/evaluating-the-impact-of-tunnelvision Third Party Advisory
9119a7d8-5eab-497f-8521-727c672e3725 https://my.f5.com/manage/s/article/K000139553 Vendor Advisory
9119a7d8-5eab-497f-8521-727c672e3725 https://news.ycombinator.com/item?id=40279632 Issue Tracking
9119a7d8-5eab-497f-8521-727c672e3725 https://news.ycombinator.com/item?id=40284111 Issue Tracking
9119a7d8-5eab-497f-8521-727c672e3725 https://security.paloaltonetworks.com/CVE-2024-3661 Vendor Advisory
9119a7d8-5eab-497f-8521-727c672e3725 https://support.citrix.com/article/CTX677069/cloud-software-group-security-advisory-for-cve20243661 Vendor Advisory
9119a7d8-5eab-497f-8521-727c672e3725 https://tunnelvisionbug.com/ Exploit, Third Party Advisory
9119a7d8-5eab-497f-8521-727c672e3725 https://www.agwa.name/blog/post/hardening_openvpn_for_def_con Related
9119a7d8-5eab-497f-8521-727c672e3725 https://www.leviathansecurity.com/research/tunnelvision Third Party Advisory
9119a7d8-5eab-497f-8521-727c672e3725 https://www.theregister.com/2024/05/07/vpn_tunnelvision_dhcp/ Press/Media Coverage
9119a7d8-5eab-497f-8521-727c672e3725 https://www.watchguard.com/wgrd-psirt/advisory/wgsa-2024-00009 Mitigation, Third Party Advisory
9119a7d8-5eab-497f-8521-727c672e3725 https://www.zscaler.com/blogs/security-research/cve-2024-3661-k-tunnelvision-exposes-vpn-bypass-vulnerability Exploit, Third Party Advisory
af854a3a-2127-422b-91ae-364da2661108 https://arstechnica.com/security/2024/05/novel-attack-against-virtually-all-vpn-apps-neuters-their-entire-purpose/ Exploit, Press/Media Coverage
af854a3a-2127-422b-91ae-364da2661108 https://bst.cisco.com/quickview/bug/CSCwk05814 Third Party Advisory
af854a3a-2127-422b-91ae-364da2661108 https://datatracker.ietf.org/doc/html/rfc2131#section-7 Related
af854a3a-2127-422b-91ae-364da2661108 https://datatracker.ietf.org/doc/html/rfc3442#section-7 Related
af854a3a-2127-422b-91ae-364da2661108 https://fortiguard.fortinet.com/psirt/FG-IR-24-170 Vendor Advisory
af854a3a-2127-422b-91ae-364da2661108 https://issuetracker.google.com/issues/263721377 Issue Tracking
af854a3a-2127-422b-91ae-364da2661108 https://krebsonsecurity.com/2024/05/why-your-vpn-may-not-be-as-secure-as-it-claims/ Exploit, Press/Media Coverage
af854a3a-2127-422b-91ae-364da2661108 https://lowendtalk.com/discussion/188857/a-rogue-dhcp-server-within-your-network-can-and-will-hijack-your-vpn-traffic Issue Tracking
af854a3a-2127-422b-91ae-364da2661108 https://mullvad.net/en/blog/evaluating-the-impact-of-tunnelvision Third Party Advisory
af854a3a-2127-422b-91ae-364da2661108 https://my.f5.com/manage/s/article/K000139553 Vendor Advisory
af854a3a-2127-422b-91ae-364da2661108 https://news.ycombinator.com/item?id=40279632 Issue Tracking
af854a3a-2127-422b-91ae-364da2661108 https://news.ycombinator.com/item?id=40284111 Issue Tracking
af854a3a-2127-422b-91ae-364da2661108 https://security.paloaltonetworks.com/CVE-2024-3661 Vendor Advisory
af854a3a-2127-422b-91ae-364da2661108 https://support.citrix.com/article/CTX677069/cloud-software-group-security-advisory-for-cve20243661 Vendor Advisory
af854a3a-2127-422b-91ae-364da2661108 https://tunnelvisionbug.com/ Exploit, Third Party Advisory
af854a3a-2127-422b-91ae-364da2661108 https://www.agwa.name/blog/post/hardening_openvpn_for_def_con Related
af854a3a-2127-422b-91ae-364da2661108 https://www.leviathansecurity.com/research/tunnelvision Third Party Advisory
af854a3a-2127-422b-91ae-364da2661108 https://www.theregister.com/2024/05/07/vpn_tunnelvision_dhcp/ Exploit, Press/Media Coverage
af854a3a-2127-422b-91ae-364da2661108 https://www.watchguard.com/wgrd-psirt/advisory/wgsa-2024-00009 Mitigation, Vendor Advisory
af854a3a-2127-422b-91ae-364da2661108 https://www.zscaler.com/blogs/security-research/cve-2024-3661-k-tunnelvision-exposes-vpn-bypass-vulnerability Exploit, Vendor Advisory
Impacted products
Vendor Product Version
IETF DHCP Version: 0
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\"https://www.agwa.name/blog/post/hardening_openvpn_for_def_con\"}, {\"url\": \"https://www.theregister.com/2024/05/07/vpn_tunnelvision_dhcp/\"}, {\"url\": \"https://support.citrix.com/article/CTX677069/cloud-software-group-security-advisory-for-cve20243661\"}, {\"url\": \"https://www.watchguard.com/wgrd-psirt/advisory/wgsa-2024-00009\"}, {\"url\": \"https://bst.cisco.com/quickview/bug/CSCwk05814\"}, {\"url\": \"https://security.paloaltonetworks.com/CVE-2024-3661\"}, {\"url\": \"https://fortiguard.fortinet.com/psirt/FG-IR-24-170\"}, {\"url\": \"https://my.f5.com/manage/s/article/K000139553\"}], \"x_generator\": {\"engine\": \"Vulnogram 0.1.0-dev\"}, \"descriptions\": [{\"lang\": \"en\", \"value\": \"DHCP can add routes to a client\\u2019s routing table via the classless static route option (121). 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      "cveMetadata": "{\"cveId\": \"CVE-2024-3661\", \"state\": \"PUBLISHED\", \"dateUpdated\": \"2024-08-28T19:09:06.995Z\", \"dateReserved\": \"2024-04-11T17:24:22.637Z\", \"assignerOrgId\": \"9119a7d8-5eab-497f-8521-727c672e3725\", \"datePublished\": \"2024-05-06T18:31:21.217Z\", \"assignerShortName\": \"cisa-cg\"}",
      "dataType": "CVE_RECORD",
      "dataVersion": "5.1"
    }
  }
}


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