Vulnerability in Freeradius
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 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.
Published · last modified .
CVSS v3 metric
CVSS v3 base score 6.5 (Medium). Vector: CVSS:3.1/AV:A/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N.
EPSS exploit prediction
EPSS: 0.018 (77.6th percentile), scored .
Low probability of exploitation in the next 30 days, but still tracked. 78th percentile — 77.6% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.
EPSS over last 30 days · oldest: 0.016 · newest: 0.018 · change: +0.002
Affected products
- Freeradius
- Linux Kernel
- openSUSE Leap — versions 15.1
- Red Hat Enterprise Linux — versions 7.0, 8.0
Weakness classification (CWE)
References
- freeradius.org/security/ (Vendor Advisory)
- wpa3.mathyvanhoef.com (Exploit, Third Party Advisory)
- bugzilla.redhat.com/show_bug.cgi (Exploit, Patch, Third Party Advisory, Issue Tracking)
- github.com/FreeRADIUS/freeradius-server/commit/3ea2a5a026e73d81cd9a3e9bbd4300c4… (Patch, Third Party Advisory)
- lists.opensuse.org/opensuse-security-announce/2020-04/msg00039.html (vendor-advisory, Mailing List, Third Party Advisory)
Frequently asked questions
- What is CVE-2019-13456?
- CVE-2019-13456 is a medium-severity vulnerability in Freeradius, classified under Observable Discrepancy. CVSS score: 6.5/10. Published 2019-12-03.
- How severe is CVE-2019-13456?
- Medium severity. CVSS v3 base score is 6.5 out of 10.