#VU47235 Resource exhaustion in Cisco ASR 1000 Series Aggregation Services Routers and Cisco IOS XE - CVE-2020-3508

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Main Vulnerability Database Vulnerabilities #VU47235

#VU47235 Resource exhaustion in Cisco ASR 1000 Series Aggregation Services Routers and Cisco IOS XE - CVE-2020-3508

Published: September 24, 2020 / Updated: October 1, 2020


Vulnerability identifier: #VU47235
Vulnerability risk: Low
CVSSv4.0: CVSS:4.0/AV:A/AC:L/AT:N/PR:N/UI:N/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N/E:U/U:Clear
CVE-ID: CVE-2020-3508
CWE-ID: CWE-400
Exploitation vector: Adjecent network
Exploit availability: No public exploit available
Vulnerable software:
Cisco ASR 1000 Series Aggregation Services Routers
Cisco IOS XE
Software vendor:
Cisco Systems, Inc

Description

The vulnerability allows a remote attacker to perform a denial of service (DoS) attack.

The vulnerability exists due to application does not properly control consumption of internal resources in the IP Address Resolution Protocol (ARP) feature. A remote attacker on the local network can send a malicious series of IP ARP messages, trigger resource exhaustion and perform a denial of service (DoS) attack.


Remediation

Install updates from vendor's website.

External links