hostapd before 2.10 and wpa_supplicant before 2.10 allow an incorrect indication of disconnection in certain situations because source address validation is mishandled. This is a denial of service that should have been prevented by PMF (aka management frame protection). The attacker must send a crafted 802.11 frame from a location that is within the 802.11 communications range.
Weakness
The product does not properly verify that the source of data or communication is valid.
Affected Software
| Name | Vendor | Start Version | End Version |
|---|---|---|---|
| Hostapd | W1.fi | * | 2.9 (including) |
| Wpa_supplicant | W1.fi | * | 2.9 (including) |
| Wpa | Ubuntu | bionic | * |
| Wpa | Ubuntu | devel | * |
| Wpa | Ubuntu | disco | * |
| Wpa | Ubuntu | esm-infra-legacy/trusty | * |
| Wpa | Ubuntu | esm-infra/bionic | * |
| Wpa | Ubuntu | esm-infra/xenial | * |
| Wpa | Ubuntu | trusty | * |
| Wpa | Ubuntu | trusty/esm | * |
| Wpa | Ubuntu | xenial | * |
| Wpasupplicant | Ubuntu | trusty | * |
Related Attack Patterns
- https://cwe.mitre.org/data/definitions/111.html
- https://cwe.mitre.org/data/definitions/141.html
- https://cwe.mitre.org/data/definitions/142.html
- https://cwe.mitre.org/data/definitions/160.html
- https://cwe.mitre.org/data/definitions/21.html
- https://cwe.mitre.org/data/definitions/384.html
- https://cwe.mitre.org/data/definitions/385.html
- https://cwe.mitre.org/data/definitions/386.html
- https://cwe.mitre.org/data/definitions/387.html
- https://cwe.mitre.org/data/definitions/388.html
- https://cwe.mitre.org/data/definitions/510.html
- https://cwe.mitre.org/data/definitions/59.html
- https://cwe.mitre.org/data/definitions/60.html
- https://cwe.mitre.org/data/definitions/75.html
- https://cwe.mitre.org/data/definitions/76.html
- https://cwe.mitre.org/data/definitions/89.html
References
- http://www.openwall.com/lists/oss-security/2019/09/12/6
- https://lists.debian.org/debian-lts-announce/2019/09/msg00017.html
- https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/36G4XAZ644DMHBLKOL4FDSPZVIGNQY6U/
- https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/B7NCLOPTZNRRNYODH22BFIDH6YIQWLJD/
- https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/FEGITWRTIWABW54ANEPCEF4ARZLXGSK5/
- https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/HY6STGJIIROVNIU6VMB2WTN2Q5M65WF4/
- https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/PBJXUKV6XMSELWNXPS37CSUIH5EUHFXQ/
- https://seclists.org/bugtraq/2019/Sep/56
- https://usn.ubuntu.com/4136-1/
- https://usn.ubuntu.com/4136-2/
- https://w1.fi/security/2019-7/
- https://w1.fi/security/2019-7/ap-mode-pmf-disconnection-protection-bypass.txt
- https://www.debian.org/security/2019/dsa-4538
- https://www.openwall.com/lists/oss-security/2019/09/11/7
- http://www.openwall.com/lists/oss-security/2019/09/12/6
- https://lists.debian.org/debian-lts-announce/2019/09/msg00017.html
- https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/36G4XAZ644DMHBLKOL4FDSPZVIGNQY6U/
- https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/B7NCLOPTZNRRNYODH22BFIDH6YIQWLJD/
- https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/FEGITWRTIWABW54ANEPCEF4ARZLXGSK5/
- https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/HY6STGJIIROVNIU6VMB2WTN2Q5M65WF4/
- https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/PBJXUKV6XMSELWNXPS37CSUIH5EUHFXQ/
- https://seclists.org/bugtraq/2019/Sep/56
- https://usn.ubuntu.com/4136-1/
- https://usn.ubuntu.com/4136-2/
- https://w1.fi/security/2019-7/
- https://w1.fi/security/2019-7/ap-mode-pmf-disconnection-protection-bypass.txt
- https://www.debian.org/security/2019/dsa-4538
- https://www.openwall.com/lists/oss-security/2019/09/11/7