NVD - CVE-2015-8023

CVE-2015-8023 Detail

Modified

This vulnerability has been modified since it was last analyzed by the NVD. It is awaiting reanalysis which may result in further changes to the information provided.

Description

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.

Source: MITRE
Description Last Modified: 11/18/2015

Impact

CVSS v2.0 Severity and Metrics:

Base Score: 5.0 MEDIUM
Vector: (AV:N/AC:L/Au:N/C:N/I:P/A:N) (V2 legend)
Impact Subscore: 2.9
Exploitability Subscore: 10.0

Access Vector (AV): Network
Access Complexity (AC): Low
Authentication (AU): None
Confidentiality (C): None
Integrity (I): Partial
Availability (A): None
Additional Information:
Allows unauthorized modification

References to Advisories, Solutions, and Tools

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Hyperlink	Resource
http://lists.opensuse.org/opensuse-security-announce/2015-12/msg00025.html
http://lists.opensuse.org/opensuse-updates/2015-11/msg00139.html
http://www.debian.org/security/2015/dsa-3398
http://www.securityfocus.com/bid/84947
http://www.ubuntu.com/usn/USN-2811-1
https://www.strongswan.org/blog/2015/11/16/strongswan-vulnerability-(cve-2015-8023).html

Technical Details

Vulnerability Type (View All)

Input Validation (CWE-20)
Permissions, Privileges, and Access Control (CWE-264)

Vulnerable software and versions Switch to CPE 2.2

Denotes Vulnerable Software
Are we missing a CPE here? Please let us know.

Change History

7 change records found - show changes

Modified Analysis - 11/24/2015 12:02:52 PM

Action

Type

Old Value

New Value

Changed

CPE Configuration

Record truncated, showing 500 of 2611 characters. View Entire Change Record

Configuration 1
     OR
          *cpe:2.3:a:strongswan:strongswan:4.2.12:*:*:*:*:*:*:*
          *cpe:2.3:a:strongswan:strongswan:4.2.13:*:*:*:*:*:*:*
          *cpe:2.3:a:strongswan:strongswan:4.2.14:*:*:*:*:*:*:*
          *cpe:2.3:a:strongswan:strongswan:4.2.15:*:*:*:*:*:*:*
          *cpe:2.3:a:strongswan:strongswan:4.2.16:*:*:*:*:*:*:*
          *cpe:2.3:a:strongswan:strongswan:4.3.0:*:*:*:*:*:*:*
          *cpe:2.3:a:strongswan:strongswan:4.3.1:*:*:*:*:*:*:*
          *cpe:2.3:a:strongswa

Record truncated, showing 500 of 2829 characters. View Entire Change Record

Configuration 1
     OR
          *cpe:2.3:o:canonical:ubuntu_linux:15.04:*:*:*:*:*:*:*
          *cpe:2.3:o:canonical:ubuntu_linux:15.10:*:*:*:*:*:*:*
          *cpe:2.3:o:canonical:ubuntu_linux:14.04:*:*:*:lts:*:*:*
Configuration 2
     OR
          *cpe:2.3:a:strongswan:strongswan:4.2.12:*:*:*:*:*:*:*
          *cpe:2.3:a:strongswan:strongswan:4.2.13:*:*:*:*:*:*:*
          *cpe:2.3:a:strongswan:strongswan:4.2.14:*:*:*:*:*:*:*
          *cpe:2.3:a:strongswan:strongswan:4.2.15:*:*:*:*:*:*:*

Changed

Reference Type

https://www.strongswan.org/blog/2015/11/16/strongswan-vulnerability-%28cve-2015-8023%29.html No Types Assigned

https://www.strongswan.org/blog/2015/11/16/strongswan-vulnerability-%28cve-2015-8023%29.html Advisory

Modified Analysis - 11/19/2015 12:24:47 PM

Action	Type	New Value
Added	CPE Configuration	Record truncated, showing 500 of 2611 characters. View Entire Change Record Configuration 1 OR cpe:2.3:a:strongswan:strongswan:4.2.12::::::: cpe:2.3:a:strongswan:strongswan:4.2.13::::::: cpe:2.3:a:strongswan:strongswan:4.2.14::::::: cpe:2.3:a:strongswan:strongswan:4.2.15::::::: cpe:2.3:a:strongswan:strongswan:4.2.16::::::: cpe:2.3:a:strongswan:strongswan:4.3.0::::::: cpe:2.3:a:strongswan:strongswan:4.3.1::::::: *cpe:2.3:a:strongswa
Added	CVSS V2	(AV:N/AC:L/Au:N/C:N/I:P/A:N)
Added	CWE	CWE-20
Added	CWE	CWE-264

Quick Info

CVE Dictionary Entry:
CVE-2015-8023
NVD Published Date:
11/18/2015
NVD Last Modified:
08/13/2018

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Information Technology Laboratory

National Vulnerability Database

National Vulnerability Database

National Vulnerability
Database

CVE-2015-8023 Detail

Description

Impact

References to Advisories, Solutions, and Tools

Technical Details

Vulnerable software and versions Switch to CPE 2.2

Change History

CVE Modified by MITRE - 8/13/2018 5:47:53 PM

CVE Modified by MITRE - 12/7/2016 1:25:57 PM

CVE Modified by MITRE - 11/28/2016 2:45:23 PM

Modified Analysis - 11/24/2015 12:02:52 PM

CVE Modified by Source - 11/19/2015 9:59:03 PM

Modified Analysis - 11/19/2015 12:24:47 PM

Initial CVE Analysis - 11/19/2015 11:17:24 AM

Quick Info