CVE-2019-1834

Published Apr 18, 2019

Last updated 5 years ago

Overview

Description: A vulnerability in the internal packet processing of Cisco Aironet Series Access Points (APs) could allow an unauthenticated, adjacent attacker to cause a denial of service (DoS) condition on an affected AP if the switch interface where the AP is connected has port security configured. The vulnerability exists because the AP forwards some malformed wireless client packets outside of the Control and Provisioning of Wireless Access Points (CAPWAP) tunnel. An attacker could exploit this vulnerability by sending crafted wireless packets to an affected AP. A successful exploit could allow the attacker to trigger a security violation on the adjacent switch port, which could result in a DoS condition. Note: Though the Common Vulnerability Scoring System (CVSS) score corresponds to a High Security Impact Rating (SIR), this vulnerability is considered Medium because a workaround is available and exploitation requires a specific switch configuration. There are workarounds that address this vulnerability.
Source: ykramarz@cisco.com
NVD status: Modified

Hype score: Not currently trending

Risk scores

CVSS 3.0

Type: Primary
Base score: 6.5
Impact score: 3.6
Exploitability score: 2.8
Vector string: CVSS:3.0/AV:A/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
Severity: MEDIUM

CVSS 2.0

Type: Primary
Base score: 3.3
Impact score: 2.9
Exploitability score: 6.5
Vector string: AV:A/AC:L/Au:N/C:N/I:N/A:P

Weaknesses

nvd@nist.gov: CWE-20
ykramarz@cisco.com: CWE-20

Configurations

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Overview

Social media

Risk scores

CVSS 3.0

CVSS 2.0

Weaknesses

Configurations

References