CVE-2019-15261

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Summary

CVECVE-2019-15261
StatePUBLIC
Assigner[email protected]
Source PriorityCVE Program / NVD first with legacy fallback
Published2019-10-16 19:15:00 UTC
Updated2019-10-22 19:51:00 UTC
DescriptionA vulnerability in the Point-to-Point Tunneling Protocol (PPTP) VPN packet processing functionality in Cisco Aironet Access Points (APs) could allow an unauthenticated, remote attacker to cause an affected device to reload, resulting in a denial of service (DoS) condition. The vulnerability is due to insufficient validation of Generic Routing Encapsulation (GRE) frames that pass through the data plane of an affected AP. An attacker could exploit this vulnerability by associating to a vulnerable AP, initiating a PPTP VPN connection to an arbitrary PPTP VPN server, and sending a malicious GRE frame through the data plane of the AP. A successful exploit could allow the attacker to cause an internal process of the targeted AP to crash, which in turn would cause the AP to reload. The AP reload would cause a DoS condition for clients that are associated with the AP.

Risk And Classification

Problem Types: CWE-20

NVD Known Affected Configurations (CPE 2.3)

TypeVendorProductVersionUpdateEditionLanguage
Hardware Cisco Aironet 1810 - All All All
Hardware Cisco Aironet 1810 - All All All
Operating System Cisco Aironet 1810 Firmware All All All All
Operating System Cisco Aironet 1810 Firmware All All All All
Hardware Cisco Aironet 1830 - All All All
Hardware Cisco Aironet 1830 - All All All
Operating System Cisco Aironet 1830 Firmware All All All All
Operating System Cisco Aironet 1830 Firmware All All All All
Hardware Cisco Aironet 1850 - All All All
Hardware Cisco Aironet 1850 - All All All
Operating System Cisco Aironet 1850 Firmware All All All All
Operating System Cisco Aironet 1850 Firmware All All All All

References

ReferenceSourceLinkTags
Cisco Aironet Access Points Point-to-Point Tunneling Protocol 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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