CVE-2019-1834

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Summary

CVECVE-2019-1834
StatePUBLIC
Assigner[email protected]
Source PriorityCVE Program / NVD first with legacy fallback
Published2019-04-18 02:29:00 UTC
Updated2019-10-09 23:48:00 UTC
DescriptionA 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.

Risk And Classification

Problem Types: CWE-20

NVD Known Affected Configurations (CPE 2.3)

TypeVendorProductVersionUpdateEditionLanguage
Hardware Cisco Aironet 1542d - All All All
Hardware Cisco Aironet 1542d - All All All
Hardware Cisco Aironet 1542i - All All All
Hardware Cisco Aironet 1542i - All All All
Hardware Cisco Aironet 1562d - All All All
Hardware Cisco Aironet 1562d - All All All
Hardware Cisco Aironet 1562e - All All All
Hardware Cisco Aironet 1562e - All All All
Hardware Cisco Aironet 1562i - All All All
Hardware Cisco Aironet 1562i - All All All
Hardware Cisco Aironet 1800i - All All All
Hardware Cisco Aironet 1800i - All All All
Hardware Cisco Aironet 1850e - All All All
Hardware Cisco Aironet 1850e - All All All
Hardware Cisco Aironet 1850i - All All All
Hardware Cisco Aironet 1850i - All All All
Hardware Cisco Aironet 2800e - All All All
Hardware Cisco Aironet 2800e - All All All
Hardware Cisco Aironet 2800i - All All All
Hardware Cisco Aironet 2800i - All All All
Hardware Cisco Aironet 3800e - All All All
Hardware Cisco Aironet 3800e - All All All
Hardware Cisco Aironet 3800i - All All All
Hardware Cisco Aironet 3800i - All All All
Hardware Cisco Aironet 3800p - All All All
Hardware Cisco Aironet 3800p - All All All
Operating System Cisco Aironet Access Point Firmware All All All All
Operating System Cisco Aironet Access Point Firmware 8.5(131.0) All All All
Operating System Cisco Aironet Access Point Firmware 8.5\(131.0\) All All All
Operating System Cisco Aironet Access Point Firmware All All All All
Operating System Cisco Aironet Access Point Firmware 8.5\(131.0\) All All All

References

ReferenceSourceLinkTags
Malformed Request BID www.securityfocus.com Third Party Advisory, VDB Entry
Cisco Aironet Series Access Points Denial of Service Vulnerability CISCO tools.cisco.com Vendor Advisory
CVE Program record CVE.ORG www.cve.org canonical
NVD vulnerability detail NVD nvd.nist.gov canonical, analysis
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