CVE-2022-20678

EPSS 0.29%
Published 15.04.2022 15:15:12
Last modified 21.11.2024 06:43:18
Source psirt@cisco.com
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A vulnerability in the AppNav-XE feature of Cisco IOS XE Software could allow an unauthenticated, remote attacker to cause an affected device to reload, resulting in a denial of service (DoS) condition. This vulnerability is due to the incorrect handling of certain TCP segments. An attacker could exploit this vulnerability by sending a stream of crafted TCP traffic at a high rate through an interface of an affected device. That interface would need to have AppNav interception enabled. A successful exploit could allow the attacker to cause the device to reload.

Affected products Warnungen 0 Metrics 4 CWE 2 References 4

Data is provided by the National Vulnerability Database (NVD)

Cisco ≫ Ios Xe Version16.9.6

Cisco ≫ Ios Xe Version16.12.4

Cisco ≫ Ios Xe Version16.12.5

Cisco ≫ Ios Xe Version17.3.3

Zu dieser CVE wurde keine CISA KEV oder CERT.AT-Warnung gefunden.

EPSS Metriken
Type	Source	Score	Percentile
EPSS	FIRST.org	0.29%	0.522

CVSS Metriken
Source	Base Score	Exploit Score	Impact Score	Vector string
nvd@nist.gov	7.5	3.9	3.6	CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
nvd@nist.gov	7.8	10	6.9	AV:N/AC:L/Au:N/C:N/I:N/A:C
psirt@cisco.com	8.6	3.9	4	CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:C/C:N/I:N/A:H

CWE-413 Improper Resource Locking

The product does not lock or does not correctly lock a resource when the product must have exclusive access to the resource.

CWE-755 Improper Handling of Exceptional Conditions

The product does not handle or incorrectly handles an exceptional condition.

https://tools.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-appnav-xe-dos-j5MXTR4

Vendor Advisory

https://nvd.nist.gov/vuln/detail/CVE-2022-20678

CVE Source (NVD)

https://cveawg.mitre.org/api/cve/CVE-2022-20678

CVE Source (JSON)

https://euvd.enisa.europa.eu/vulnerability/CVE-2022-20678

EUVD