Vulnerability Monitor

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CVE-2019-1834

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.

Published

2019-04-18T02:29:05.843

Last Modified

2024-11-21T04:37:29.763

Status

Modified

Source

[email protected]

Severity

CVSSv3.0: 7.4 (HIGH)

CVSSv2 Vector

AV:A/AC:L/Au:N/C:N/I:N/A:P

  • Access Vector: ADJACENT_NETWORK
  • Access Complexity: LOW
  • Authentication: NONE
  • Confidentiality Impact: NONE
  • Integrity Impact: NONE
  • Availability Impact: PARTIAL
Exploitability Score

6.5

Impact Score

2.9

Weaknesses
  • Type: Secondary
    CWE-20
  • Type: Primary
    CWE-20
Affected Vendors & Products
Type Vendor Product Version/Range Vulnerable?
Operating System cisco aironet_access_point_firmware < 8.5.140.0 Yes
Operating System cisco aironet_access_point_firmware < 8.8.111.0 Yes
Operating System cisco aironet_access_point_firmware < 8.9.100.0 Yes
Hardware cisco aironet_1542d - No
Hardware cisco aironet_1542i - No
Hardware cisco aironet_1562d - No
Hardware cisco aironet_1562e - No
Hardware cisco aironet_1562i - No
Hardware cisco aironet_1800i - No
Hardware cisco aironet_2800e - No
Hardware cisco aironet_2800i - No
Hardware cisco aironet_3800e - No
Hardware cisco aironet_3800i - No
Hardware cisco aironet_3800p - No
Operating System cisco aironet_access_point_firmware 8.5\(131.0\) Yes
Hardware cisco aironet_1850e - No
Hardware cisco aironet_1850i - No
References