CVE-2021-1377 (GCVE-0-2021-1377)

Vulnerability from cvelistv5 – Published: 2021-03-24 20:10 – Updated: 2024-11-08 23:32
VLAI
Title
Cisco IOS and IOS XE Software ARP Resource Management Exhaustion Denial of Service Vulnerability
Summary
A vulnerability in Address Resolution Protocol (ARP) management of Cisco IOS Software and Cisco IOS XE Software could allow an unauthenticated, remote attacker to prevent an affected device from resolving ARP entries for legitimate hosts on the connected subnets. This vulnerability exists because ARP entries are mismanaged. An attacker could exploit this vulnerability by continuously sending traffic that results in incomplete ARP entries. A successful exploit could allow the attacker to cause ARP requests on the device to be unsuccessful for legitimate hosts, resulting in a denial of service (DoS) condition.
SSVC
Exploitation: none Automatable: yes Technical Impact: partial
CISA Coordinator · CISA-ADP (v2.0.3)
Decision recorded 2024-11-08 20:03 UTC
CWE
Assigner
cisco CNA under the mitre root
CNA scorecard C 66/100 over 432 records in the last 180 days details
References
URL Tags
https://tools.cisco.com/security/center/content/C… vendor-advisoryx_refsource_CISCO
Impacted products
Vendor Product Version CPE status
Cisco Cisco IOS Affected: n/a
guessed Create a notification for this product.
Date Public
2021-03-24 00:00
Show details on NVD website

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        "cveTags": [],
        "descriptions": [
          {
            "lang": "en",
            "value": "A vulnerability in Address Resolution Protocol (ARP) management of Cisco IOS Software and Cisco IOS XE Software could allow an unauthenticated, remote attacker to prevent an affected device from resolving ARP entries for legitimate hosts on the connected subnets. This vulnerability exists because ARP entries are mismanaged. An attacker could exploit this vulnerability by continuously sending traffic that results in incomplete ARP entries. A successful exploit could allow the attacker to cause ARP requests on the device to be unsuccessful for legitimate hosts, resulting in a denial of service (DoS) condition."
          },
          {
            "lang": "es",
            "value": "Una vulnerabilidad en la administraci\u00f3n del Address Resolution Protocol (ARP) del Software Cisco IOS y el Software Cisco IOS XE, podr\u00eda permitir a un atacante remoto no autenticado impedir que un dispositivo afectado resuelva entradas ARP para hosts leg\u00edtimos en las subredes conectadas.\u0026#xa0;Esta vulnerabilidad se presenta porque las entradas ARP son mal administradas.\u0026#xa0;Un atacante podr\u00eda explotar esta vulnerabilidad mediante el env\u00edo de tr\u00e1fico continuamente que da como resultado entradas ARP incompletas.\u0026#xa0;Una explotaci\u00f3n con \u00e9xito podr\u00eda permitir al atacante causar que las peticiones ARP en el dispositivo no sean exitosas para hosts leg\u00edtimos, lo que resultar\u00eda en una condici\u00f3n de denegaci\u00f3n de servicio (DoS)"
          }
        ],
        "id": "CVE-2021-1377",
        "lastModified": "2024-11-21T05:44:12.877",
        "metrics": {
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                "availabilityImpact": "PARTIAL",
                "baseScore": 5.0,
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        "published": "2021-03-24T20:15:13.150",
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}



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