Vulnerability Description
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.
CVSS Score
MEDIUM
Affected Products
| Vendor | Product | Versions |
|---|---|---|
| Freeradius | Freeradius | >= 3.0.0, <= 3.0.19 |
| Linux | Linux Kernel | - |
| Redhat | Enterprise Linux | 7.0 |
| Opensuse | Leap | 15.1 |
Related Weaknesses (CWE)
References
- http://lists.opensuse.org/opensuse-security-announce/2020-04/msg00039.htmlMailing ListThird Party Advisory
- https://bugzilla.redhat.com/show_bug.cgi?id=1737663ExploitIssue TrackingPatch
- https://freeradius.org/security/Vendor Advisory
- https://github.com/FreeRADIUS/freeradius-server/commit/3ea2a5a026e73d81cd9a3e9bbPatchThird Party Advisory
- https://wpa3.mathyvanhoef.comExploitThird Party Advisory
- http://lists.opensuse.org/opensuse-security-announce/2020-04/msg00039.htmlMailing ListThird Party Advisory
- https://bugzilla.redhat.com/show_bug.cgi?id=1737663ExploitIssue TrackingPatch
- https://freeradius.org/security/Vendor Advisory
- https://github.com/FreeRADIUS/freeradius-server/commit/3ea2a5a026e73d81cd9a3e9bbPatchThird Party Advisory
- https://wpa3.mathyvanhoef.comExploitThird Party Advisory
FAQ
What is CVE-2019-13456?
CVE-2019-13456 is a vulnerability with a CVSS score of 6.5 (MEDIUM). 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 info...
How severe is CVE-2019-13456?
CVE-2019-13456 has been rated MEDIUM with a CVSS base score of 6.5/10. Review the CVSS metrics above for detailed severity breakdown.
Is there a patch for CVE-2019-13456?
Check the references section above for vendor advisories and patch information. Affected products include: Freeradius Freeradius, Linux Linux Kernel, Redhat Enterprise Linux, Opensuse Leap.