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ubuntucveUbuntu.comUB:CVE-2021-32642
HistoryMay 28, 2021 - 12:00 a.m.

CVE-2021-32642

2021-05-2800:00:00
ubuntu.com
ubuntu.com
11
radsecproxy
radius
proxy
vulnerability
configuration injection
scripts
input validation
information disclosure
denial of service
redirection
dns records
peer discovery
non-authenticated server
network access
example scripts
update
dyndisc
master branch
1.9 release
installation package
dyndisc scripts
unix

CVSS2

7.5

Attack Vector

NETWORK

Attack Complexity

LOW

Authentication

NONE

Confidentiality Impact

PARTIAL

Integrity Impact

PARTIAL

Availability Impact

PARTIAL

AV:N/AC:L/Au:N/C:P/I:P/A:P

CVSS3

9.4

Attack Vector

NETWORK

Attack Complexity

LOW

Privileges Required

NONE

User Interaction

NONE

Scope

UNCHANGED

Confidentiality Impact

LOW

Integrity Impact

HIGH

Availability Impact

HIGH

CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:H/A:H

EPSS

0.004

Percentile

72.9%

radsecproxy is a generic RADIUS proxy that supports both UDP and TLS
(RadSec) RADIUS transports. Missing input validation in radsecproxy’s
naptr-eduroam.sh and radsec-dynsrv.sh scripts can lead to configuration
injection via crafted radsec peer discovery DNS records. Users are subject
to Information disclosure, Denial of Service, Redirection of Radius
connection to a non-authenticated server leading to non-authenticated
network access. Updated example scripts are available in the master branch
and 1.9 release. Note that the scripts are not part of the installation
package and are not updated automatically. If you are using the examples,
you have to update them manually. The dyndisc scripts work independently of
the radsecproxy code. The updated scripts can be used with any version of
radsecproxy.

CVSS2

7.5

Attack Vector

NETWORK

Attack Complexity

LOW

Authentication

NONE

Confidentiality Impact

PARTIAL

Integrity Impact

PARTIAL

Availability Impact

PARTIAL

AV:N/AC:L/Au:N/C:P/I:P/A:P

CVSS3

9.4

Attack Vector

NETWORK

Attack Complexity

LOW

Privileges Required

NONE

User Interaction

NONE

Scope

UNCHANGED

Confidentiality Impact

LOW

Integrity Impact

HIGH

Availability Impact

HIGH

CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:H/A:H

EPSS

0.004

Percentile

72.9%