Medium severity · published Dec 3, 2019
CVE-2019-13456
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…
6.5
CVSS
1.8%
EPSS
No
On KEV
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 vector
CVSS:3.1/AV:A/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N
Attack vector
Adjacent
Complexity
Low
Privileges
None
User interaction
None
Confidentiality
High
Integrity
None
Availability
None
Scope
Unchanged
Exploitation
Is it being used?
Exploit prediction (EPSS)1.8% · higher than 78% of CVEs
Exploited in the wildNo evidence yet
CISA KEVNot listed
Ransomware campaign useNot known
Affected products
Which versions
EL
Enterprise Linux · Redhat
7.0; 8.0 · source: NVD
FR
Freeradius · Freeradius
3.0.0 through 3.0.19 · source: NVD
LE
Leap · Opensuse
15.1 · source: NVD
References
NVD
https://nvd.nist.gov/vuln/detail/CVE-2019-13456
CVE.org
https://www.cve.org/CVERecord?id=CVE-2019-13456
Mailing List
http://lists.opensuse.org/opensuse-security-announce/2020-04/msg00039.html
Exploit
https://bugzilla.redhat.com/show_bug.cgi?id=1737663
Vendor Advisory
https://freeradius.org/security/
Patch
https://github.com/FreeRADIUS/freeradius-server/commit/3ea2a5a026e73d81cd9a3e9bbd4300c433004bfa
Exploit
https://wpa3.mathyvanhoef.com
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