CVE-2021-32642 Missing input validation in dynamic discovery example scripts.

2021-05-2816:40:10

CWE-20

GitHub_M

www.cve.org

input validation

dynamic discovery

radsecproxy

configuration injection

information disclosure

denial of service

redirection

dns records

updates available.

CVSS3

Attack Vector

NETWORK

Attack Complexity

HIGH

Privileges Required

NONE

User Interaction

NONE

Scope

UNCHANGED

Confidentiality Impact

LOW

Integrity Impact

LOW

Availability Impact

HIGH

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

AI Score

9.6

Confidence

High

EPSS

0.004

Percentile

72.9%

JSON

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.

CNA Affected

[
  {
    "product": "radsecproxy",
    "vendor": "radsecproxy",
    "versions": [
      {
        "status": "affected",
        "version": "< 1.9.0"
      }
    ]
  }
]