5.8med

CVE-2018-0381

Cisco Aironet 1560, 1800, 2800, and 3800 Series Access Points Denial of Service Vulnerability

Published 8 y ago · modified 4 mo ago · JSON

CVSS
5.8
v3.0 · CNA
CISA KEV
No
not known exploited
EPSS
0.5%
percentile 45%
Public exploits
0
none known

Summary

A vulnerability in the Cisco Aironet Series Access Points (APs) software could allow an authenticated, adjacent attacker to cause an affected device to reload unexpectedly, resulting in a denial of service (DoS) condition. The vulnerability is due to a deadlock condition that may occur when an affected AP attempts to dequeue aggregated traffic that is destined to an attacker-controlled wireless client. An attacker who can successfully transition between multiple Service Set Identifiers (SSIDs) hosted on the same AP while replicating the required traffic patterns could trigger the deadlock condition. A watchdog timer that detects the condition will trigger a reload of the device, resulting in a DoS condition while the device restarts.

CISA SSVC assessment

Exploitation
none
Automatable
no
Technical impact
partial
Assessed
23 mo ago

Exploit prediction (EPSS)

0.52% probability of exploitation in the next 30 days, higher than 45% of all scored CVEs.

CVSS scores

Assigned byVersionScoreVector
CNA3.05.8CVSS:3.0/AV:A/AC:H/PR:L/UI:N/S:C/C:N/I:N/A:H
NVD3.16.8CVSS:3.1/AV:A/AC:L/PR:L/UI:N/S:C/C:N/I:N/A:H
CNA3.05.8CVSS:3.0/AV:A/AC:H/PR:L/UI:N/S:C/C:N/I:N/A:H
NVD2.05.5AV:A/AC:L/Au:S/C:N/I:N/A:C

Affected products

  • Cisco Cisco Aironet Access Points

Classification

Weakness

References

  • securitytracker.com /id/1041929 · vdb-entry, x_refsource_SECTRACK, x_transferred
  • securityfocus.com /bid/105685 · vdb-entry, x_refsource_BID, x_transferred
  • tools.cisco.com /security/center/content/CiscoSecurityAdvisory/cisco-sa-20181017-aironet-dos · vendor-advisory, x_refsource_CISCO, x_transferred

Sources

vulnwire keeps one entry per vulnerability: the CVE id wins, then GHSA; records that alias each other are merged. Machine-readable: JSON.