Auth bypass in Freeradius
CVE-2017-9148
The TLS session cache in FreeRADIUS 2.1.1 through 2.1.7, 3.0.x before 3.0.14, 3.1.x before 2017-02-04, and 4.0.x before 2017-02-04 fails to reliably prevent resumption of an unauthenticated session, which allows remote attackers (such as malicious 802.1X supplicants) to bypass authentication via PEAP or TTLS.
Vulnerability class: Broken Authentication
Published · last modified .
CVSS v3 metric
CVSS v3 base score 9.8 (Critical). Vector: CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H.
EPSS exploit prediction
EPSS: 0.039 (89.9th percentile), scored .
Low probability of exploitation in the next 30 days, but still tracked. 90th percentile — 89.9% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.
EPSS over last 30 days · oldest: 0.039 · newest: 0.039 · change: 0.000
Affected products
- Freeradius — versions 2.1.1, 2.1.2, 2.1.3
Weakness classification (CWE)
Public proof-of-concept exploits
References
- freeradius.org/security.html (Not Applicable)
- seclists.org/oss-sec/2017/q2/422 (Mailing List, VDB Entry)
- access.redhat.com/errata/RHSA-2017:1581 (vendor-advisory)
- www.securitytracker.com/id/1038576 (vdb-entry)
- www.securityfocus.com/bid/98734 (VDB Entry, Third Party Advisory, vdb-entry)
- security.gentoo.org/glsa/201706-27 (vendor-advisory)
Frequently asked questions
- What is CVE-2017-9148?
- CVE-2017-9148 is a critical-severity vulnerability in Freeradius, classified under Improper Authentication. CVSS score: 9.8/10. Published 2017-05-29.
- How severe is CVE-2017-9148?
- Critical severity. CVSS v3 base score is 9.8 out of 10.
- Is CVE-2017-9148 known to be exploited?
- 1 public proof-of-concept repositories are indexed. Not currently listed in the CISA KEV catalog.