Improper Input Validation Affecting strongswan package, versions [0,5.3.4)


Severity

Recommended
0.0
medium
0
10

CVSS assessment made by Snyk's Security Team. Learn more

Threat Intelligence

Exploit Maturity
Not Defined
EPSS
0.53% (78th percentile)

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  • Snyk IDSNYK-UNMANAGED-STRONGSWAN-2371969
  • published26 Jan 2022
  • disclosed18 Nov 2015
  • creditUnknown

Introduced: 18 Nov 2015

CVE-2015-8023  (opens in a new tab)
CWE-20  (opens in a new tab)
CWE-264  (opens in a new tab)

How to fix?

Upgrade strongswan to version 5.3.4 or higher.

Overview

Affected versions of this package are vulnerable to Improper Input Validation. The server implementation of the EAP-MSCHAPv2 protocol in the eap-mschapv2 plugin in strongSwan 4.2.12 through 5.x before 5.3.4 does not properly validate local state, which allows remote attackers to bypass authentication via an empty Success message in response to an initial Challenge message.

CVSS Scores

version 3.1