CVE-2019-13456
Publication date 3 December 2019
Last updated 24 July 2024
Ubuntu priority
In FreeRADIUS 3.0 through 3.0.19, on average 1 in every 2048 EAP-pwd handshakes fails because the password element cannot be found within 10 iterations of the hunting and pecking loop. This leaks information that an attacker can use to recover the password of any user. This information leakage is similar to the "Dragonblood" attack and CVE-2019-9494.
Status
| Package | Ubuntu Release | Status |
|---|---|---|
| freeradius | ||
| 18.04 LTS bionic |
Not affected
|
|
| 16.04 LTS xenial |
Not affected
|
|
| 14.04 LTS trusty | Not in release |
Severity score breakdown
| Parameter | Value |
|---|---|
| Base score |
6.5 · Medium
|
| Attack vector | Adjacent |
| Attack complexity | Low |
| Privileges required | None |
| User interaction | None |
| Scope | Unchanged |
| Confidentiality | High |
| Integrity impact | None |
| Availability impact | None |
| Vector | CVSS:3.1/AV:A/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N |
References
Other references
- https://bugzilla.redhat.com/show_bug.cgi?id=1737663
- https://wpa3.mathyvanhoef.com/#new
- https://github.com/FreeRADIUS/freeradius-server/commit/a99746c93b8b3ae3be367af0e46f0d6a9626f566 (master)
- https://github.com/FreeRADIUS/freeradius-server/commit/85497b5ff37ccb656895b826b88585898c209586 (3.0.x)
- https://www.cve.org/CVERecord?id=CVE-2019-13456