CVE-2019-1826

Current Description

A vulnerability in the quality of service (QoS) feature of Cisco Aironet Series Access Points (APs) could allow an authenticated, adjacent attacker to cause a denial of service (DoS) condition on an affected device. The vulnerability is due to improper input validation on QoS fields within Wi-Fi frames by the affected device. An attacker could exploit this vulnerability by sending malformed Wi-Fi frames to an affected device. A successful exploit could allow the attacker to cause the affected device to crash, resulting in a DoS condition.

Basic Data

PublishedApril 18, 2019
Last ModifiedOctober 09, 2019
Assignercve@mitre.org
Data TypeCVE
Data FormatMITRE
Data Version4.0
Problem TypeCWE-20
CVE Data Version4.0

Base Metric V2

CVSS 2 - Version2.0
CVSS 2 - Vector StringAV:A/AC:L/Au:S/C:N/I:N/A:C
CVSS 2 - Access VectorADJACENT_NETWORK
CVSS 2 - Access ComplexityLOW
CVSS 2 - AuthenticationSINGLE
CVSS 2 - Confidentiality ImpactNONE
CVSS 2 - Availability ImpactCOMPLETE
CVSS 2 - Base Score5.5
SeverityMEDIUM
Exploitability Score5.1
Impact Score6.9
Obtain All Privilegefalse
Obtain User Privilegefalse
Obtain Other Privilegefalse

Base Metric V3

CVSS 3 - Version3.0
CVSS 3 - Vector StringCVSS:3.0/AV:A/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H
CVSS 3 - Attack VectorADJACENT_NETWORK
CVSS 3 - Attack ComplexityLOW
CVSS 3 - Privileges RequiredLOW
CVSS 3 - User InteractionNONE
CVSS 3 - ScopeUNCHANGED
CVSS 3 - Confidentiality ImpactNONE
CVSS 3 - Integrity ImpactNONE
CVSS 3 - Availability ImpactHIGH
CVSS 3 - Base Score5.7
CVSS 3 - Base SeverityMEDIUM
Exploitability Score2.1
Base SeverityMEDIUM

Configurations

  • AND
    • OR - Configuration 1
      Cpe VersionPartVendorProductVersionUpdateEditionLanguageSW EditionTarget SWTarget HWOtherVersion Start IncludingVersion End IncludingVersion Start ExcludingVersion End Excluding
      2.3OSCiscoAironet Access Point Firmware-*******
    • OR Running on/with:
      Cpe VersionPartVendorProductVersionUpdateEditionLanguageSW EditionTarget SWTarget HWOtherVersion Start IncludingVersion End IncludingVersion Start ExcludingVersion End Excluding
      2.3HardwareCiscoAironet 1562d-*******
      2.3HardwareCiscoAironet 1562e-*******
      2.3HardwareCiscoAironet 1562i-*******
      2.3HardwareCiscoAironet 2800e-*******
      2.3HardwareCiscoAironet 2800i-*******
      2.3HardwareCiscoAironet 3800e-*******
      2.3HardwareCiscoAironet 3800i-*******
      2.3HardwareCiscoAironet 3800p-*******
      2.3HardwareCiscoAironet 4800-*******
  • AND
    • OR - Configuration 2
      Cpe VersionPartVendorProductVersionUpdateEditionLanguageSW EditionTarget SWTarget HWOtherVersion Start IncludingVersion End IncludingVersion Start ExcludingVersion End Excluding
      2.3OSCiscoAironet Access Point Firmware8.5(131.3)*******
    • OR Running on/with:
      Cpe VersionPartVendorProductVersionUpdateEditionLanguageSW EditionTarget SWTarget HWOtherVersion Start IncludingVersion End IncludingVersion Start ExcludingVersion End Excluding
      2.3HardwareCiscoAironet 1850e-*******
      2.3HardwareCiscoAironet 1850i-*******

Vulnerable Software List

VendorProductVersions
Cisco Aironet Access Point Firmware -, 8.5(131.3)

References

NameSourceURLTags
107988http://www.securityfocus.com/bid/107988BIDThird Party Advisory VDB Entry
20190417 Cisco Aironet Series Access Points Quality of Service Denial of Service Vulnerabilityhttps://tools.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-20190417-aap-dosCISCOVendor Advisory