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CVE Record

CVE-2018-0234: A vulnerability in the implementation of Point-to-Point Tunneling Protocol (PPTP) functionality in Cisco Ai...

A vulnerability in the implementation of Point-to-Point Tunneling Protocol (PPTP) functionality in Cisco Aironet 1810, 1830, and 1850 Series Access Points 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 access point. An attacker could exploit this vulnerability by initiating a PPTP connection to an affected access point from a device that is registered to the same wireless network as the access point and sending a malicious GRE frame through the data plane of the access point. A successful exploit could allow the attacker to cause the NSS core process on the affected access point to crash, which would cause the access point to reload and result in a DoS condition. This vulnerability affects Cisco Aironet 1810, 1830, and 1850 Series Access Points that are running Cisco Mobility Express Software Release 8.4.100.0, 8.5.103.0, or 8.5.105.0 and are configured as a master, subordinate, or standalone access point. Cisco Bug IDs: CSCvf73890.

UnknownCVSS not scoredNot KEV-listedUpdated
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Glexia's TakeAutomated analysis

Security readout for executives and security teams

This flaw can let someone already on the same wireless network crash certain Cisco Aironet access points, causing a reload and temporary wireless outage. It is a denial-of-service issue, not a disclosed data theft or remote takeover issue in the provided sources. Exposure is limited to Cisco Aironet 1810, 1830, and 1850 Series Access Points running Mobility Express 8.4.100.0, 8.5.103.0, or 8.5.105.0 as master, subordinate, or standalone devices. Treat this as a service-availability risk for locations dependent on affected wireless access points. Prioritize remediation where wireless uptime affects operations, customer connectivity, safety workflows, or incident response. Mitigation focus: Inventory Cisco Aironet 1810, 1830, and 1850 access points and Mobility Express versions.; Check Cisco’s advisory for fixed software or vendor-approved workarounds.; Prioritize upgrade planning for affected APs in business-critical wireless areas..

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CVE-2018-0234 mapping review

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Vulnerability profileCVE Program record
Severity
Unknown
CVSS
Not scored
Known Exploited
No
Published
Official CVE source material

CNA and ADP enrichment extracted from CVE v5

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0CVSS vectors
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0ADP providers
3Source links

CVSS and timeline data

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Source materials

Affected products

Products and packages named in the record

VendorProductVersion / packageStatus
n/aCisco Aironet 1810, 1830, and 1850 Series Access PointsCisco Aironet 1810, 1830, and 1850 Series Access PointsListed
Weakness

CWE details

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Improper Input Validation

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