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Debian DLA-977-1 : freeradius security update
critical Nessus Plugin ID 100623
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Synopsis
The remote Debian host is missing a security update.Description
Several issues were discovered in FreeRADIUS, a high-performance and highly configurable RADIUS server.CVE-2014-2015
A stack-based buffer overflow was found in the normify function in the rlm_pap module, which can be attacked by existing users to cause denial of service or other issues.
CVE-2015-4680
It was discovered that freeradius failed to check revocation of intermediate CA certificates, thus accepting client certificates issued by revoked certificates from intermediate CAs.
Note that to enable checking of intermediate CA certificates, it is necessary to enable the check_all_crl option of the EAP TLS section in eap.conf. This is only necessary for servers using certificates signed by intermediate CAs. Servers that use self-signed CAs are unaffected.
CVE-2017-9148
The TLS session cache 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.
For Debian 7 'Wheezy', these problems have been fixed in version 2.1.12+dfsg-1.2+deb7u1.
We recommend that you upgrade your freeradius packages.
NOTE: Tenable Network Security has extracted the preceding description block directly from the DLA security advisory. Tenable has attempted to automatically clean and format it as much as possible without introducing additional issues.
Solution
Upgrade the affected packages.See Also
https://lists.debian.org/debian-lts-announce/2017/06/msg00005.html
Plugin Details
Severity: Critical
ID: 100623
File Name: debian_DLA-977.nasl
Version: 3.6
Type: local
Agent: unix
Family: Debian Local Security Checks
Published: 6/6/2017
Updated: 1/11/2021
Supported Sensors: Agentless Assessment, Continuous Assessment, Frictionless Assessment Agent, Nessus Agent, Nessus
Risk Information
VPR
Risk Factor: Medium
Score: 6.7
CVSS v2
Risk Factor: High
Base Score: 7.5
Temporal Score: 5.5
Vector: CVSS2#AV:N/AC:L/Au:N/C:P/I:P/A:P
CVSS v3
Risk Factor: Critical
Base Score: 9.8
Temporal Score: 8.5
Vector: CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
Temporal Vector: CVSS:3.0/E:U/RL:O/RC:C
Vulnerability Information
CPE: p-cpe:/a:debian:debian_linux:freeradius-dbg, p-cpe:/a:debian:debian_linux:freeradius-krb5, p-cpe:/a:debian:debian_linux:libfreeradius2, cpe:/o:debian:debian_linux:7.0, p-cpe:/a:debian:debian_linux:freeradius-dialupadmin, p-cpe:/a:debian:debian_linux:freeradius-iodbc, p-cpe:/a:debian:debian_linux:freeradius-common, p-cpe:/a:debian:debian_linux:libfreeradius-dev, p-cpe:/a:debian:debian_linux:freeradius, p-cpe:/a:debian:debian_linux:freeradius-mysql, p-cpe:/a:debian:debian_linux:freeradius-ldap, p-cpe:/a:debian:debian_linux:freeradius-postgresql, p-cpe:/a:debian:debian_linux:freeradius-utils
Required KB Items: Host/local_checks_enabled, Host/Debian/release, Host/Debian/dpkg-l
Exploit Ease: No known exploits are available
Patch Publication Date: 6/5/2017