CVE-2021-34770

EPSS 0.94%
Published 23.09.2021 03:15:20
Last modified 21.11.2024 06:11:09
Source psirt@cisco.com
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A vulnerability in the Control and Provisioning of Wireless Access Points (CAPWAP) protocol processing of Cisco IOS XE Software for Cisco Catalyst 9000 Family Wireless Controllers could allow an unauthenticated, remote attacker to execute arbitrary code with administrative privileges or cause a denial of service (DoS) condition on an affected device. The vulnerability is due to a logic error that occurs during the validation of CAPWAP packets. An attacker could exploit this vulnerability by sending a crafted CAPWAP packet to an affected device. A successful exploit could allow the attacker to execute arbitrary code with administrative privileges or cause the affected device to crash and reload, resulting in a DoS condition.

Affected products Warnungen 0 Metrics 4 CWE 2 References 4

Data is provided by the National Vulnerability Database (NVD)

Cisco ≫ Ios Xe

   Cisco ≫ Catalyst 9800 Version-
   Cisco ≫ Catalyst 9800-40 Version-
   Cisco ≫ Catalyst 9800-40 Wireless Controller Version-
   Cisco ≫ Catalyst 9800-80 Version-
   Cisco ≫ Catalyst 9800-80 Wireless Controller Version-
   Cisco ≫ Catalyst 9800-cl Version-
   Cisco ≫ Catalyst 9800-l Version-
   Cisco ≫ Catalyst 9800-l-c Version-
   Cisco ≫ Catalyst 9800-l-f Version-
   Cisco ≫ Catalyst 9800 Embedded Wireless Controller Version-

Cisco ≫ Ios Xe Version3.15.1xbs

Cisco ≫ Ios Xe Version3.15.2xbs

Cisco ≫ Ios Xe Version16.6.4s

Cisco ≫ Ios Xe Version16.10.1

Cisco ≫ Ios Xe Version16.10.1e

Cisco ≫ Ios Xe Version16.10.1s

Cisco ≫ Ios Xe Version16.11.1

Cisco ≫ Ios Xe Version16.11.1a

Cisco ≫ Ios Xe Version16.11.1b

Cisco ≫ Ios Xe Version16.11.1c

Cisco ≫ Ios Xe Version16.11.2

Cisco ≫ Ios Xe Version16.12.1

Cisco ≫ Ios Xe Version16.12.1s

Cisco ≫ Ios Xe Version16.12.1t

Cisco ≫ Ios Xe Version16.12.2s

Cisco ≫ Ios Xe Version16.12.2t

Cisco ≫ Ios Xe Version16.12.3

Cisco ≫ Ios Xe Version16.12.3s

Cisco ≫ Ios Xe Version16.12.4

Cisco ≫ Ios Xe Version16.12.4a

Cisco ≫ Ios Xe Version17.1.1

Cisco ≫ Ios Xe Version17.1.1s

Cisco ≫ Ios Xe Version17.1.1t

Cisco ≫ Ios Xe Version17.1.2

Cisco ≫ Ios Xe Version17.1.3

Cisco ≫ Ios Xe Version17.2.1

Cisco ≫ Ios Xe Version17.2.1a

Cisco ≫ Ios Xe Version17.3.1

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

EPSS Metriken
Type	Source	Score	Percentile
EPSS	FIRST.org	0.94%	0.756

CVSS Metriken
Source	Base Score	Exploit Score	Impact Score	Vector string
nvd@nist.gov	7.2	1.2	5.9	CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:U/C:H/I:H/A:H
nvd@nist.gov	9	8	10	AV:N/AC:L/Au:S/C:C/I:C/A:C
psirt@cisco.com	10	3.9	6	CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:C/C:H/I:H/A:H

CWE-122 Heap-based Buffer Overflow

A heap overflow condition is a buffer overflow, where the buffer that can be overwritten is allocated in the heap portion of memory, generally meaning that the buffer was allocated using a routine such as malloc().

CWE-787 Out-of-bounds Write

The product writes data past the end, or before the beginning, of the intended buffer.

https://tools.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-ewlc-capwap-rce-LYgj8Kf

Vendor Advisory

https://nvd.nist.gov/vuln/detail/CVE-2021-34770

CVE Source (NVD)

https://cveawg.mitre.org/api/cve/CVE-2021-34770

CVE Source (JSON)

https://euvd.enisa.europa.eu/vulnerability/CVE-2021-34770

EUVD