Instituto Nacional de ciberseguridad. Sección Incibe
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CVE-2018-0412

Severity CVSS v4.0:
Pending analysis
Type:
Unavailable / Other
Publication date:
15/08/2018
Last modified:
09/10/2019

Description

A vulnerability in the implementation of Extensible Authentication Protocol over LAN (EAPOL) functionality in Cisco Small Business 100 Series Wireless Access Points and Cisco Small Business 300 Series Wireless Access Points could allow an unauthenticated, adjacent attacker to force the downgrade of the encryption algorithm that is used between an authenticator (access point) and a supplicant (Wi-Fi client). The vulnerability is due to the improper processing of certain EAPOL messages that are received during the Wi-Fi handshake process. An attacker could exploit this vulnerability by establishing a man-in-the-middle position between a supplicant and an authenticator and manipulating an EAPOL message exchange to force usage of a WPA-TKIP cipher instead of the more secure AES-CCMP cipher. A successful exploit could allow the attacker to conduct subsequent cryptographic attacks, which could lead to the disclosure of confidential information. Cisco Bug IDs: CSCvj29229.

Impact

Vector 3.x
CVSS:3.0/AV:A/AC:H/PR:N/UI:N/S:U/C:N/I:H/A:N CVSS v3.1 Severity and Metrics:

Base Score: 5.30 MEDIUM
Vector: CVSS:3.0/AV:A/AC:H/PR:N/UI:N/S:U/C:N/I:H/A:N

Attack Vector (AV): Adjacent
Attack Complexity (AC): High
Privileges Required (PR): None
User Interaction (UI): None
Scope (S): Unchanged
Confidentiality (C): None
Integrity (I): High
Availability (A): None

Base Score 3.x
5.30
Severity 3.x
MEDIUM
Vector 2.0
AV:A/AC:M/Au:N/C:N/I:P/A:N CVSS v2.0 Severity and Metrics:

Base Score: 2.90 LOW
Vector: AV:A/AC:M/Au:N/C:N/I:P/A:N

Attack Vector (AV): Adjacent
Attack Complexity (AC): Medium
Authentication (Au): None
Confidentiality (C): None
Integrity (I): Physical
Availability (A): None

Base Score 2.0
2.90
Severity 2.0
LOW

Vulnerable products and versions

CPE From Up to
cpe:2.3:o:cisco:wap121_firmware:*:*:*:*:*:*:*:* 1.0.6.6 (including)
cpe:2.3:h:cisco:wap121:-:*:*:*:*:*:*:*
cpe:2.3:o:cisco:wap125_firmware:*:*:*:*:*:*:*:* 1.0.6.6 (including)
cpe:2.3:h:cisco:wap125:-:*:*:*:*:*:*:*
cpe:2.3:o:cisco:wap131_firmware:*:*:*:*:*:*:*:* 1.0.6.6 (including)
cpe:2.3:h:cisco:wap131:-:*:*:*:*:*:*:*
cpe:2.3:o:cisco:wap150_firmware:*:*:*:*:*:*:*:* 1.0.6.6 (including)
cpe:2.3:h:cisco:wap150:-:*:*:*:*:*:*:*
cpe:2.3:o:cisco:wap321_firmware:*:*:*:*:*:*:*:* 1.0.6.6 (including)
cpe:2.3:h:cisco:wap321:-:*:*:*:*:*:*:*
cpe:2.3:o:cisco:wap351_firmware:*:*:*:*:*:*:*:* 1.0.6.6 (including)
cpe:2.3:h:cisco:wap351:-:*:*:*:*:*:*:*
cpe:2.3:o:cisco:wap361_firmware:*:*:*:*:*:*:*:* 1.0.6.6 (including)
cpe:2.3:h:cisco:wap361:-:*:*:*:*:*:*:*
cpe:2.3:o:cisco:wap371_firmware:*:*:*:*:*:*:*:* 1.0.6.6 (including)

To consult the complete list of CPE names with products and versions, see this page


References to Advisories, Solutions, and Tools