high
8.4
CWE
1188 255
Advisory Published
Updated

CVE-2019-1950: Cisco IOS XE SD-WAN Software Default Credentials Vulnerability

First published: Wed Jan 22 2020(Updated: )

A vulnerability in Cisco IOS XE SD-WAN Software could allow an unauthenticated, local attacker to gain unauthorized access to an affected device. The vulnerability is due to the existence of default credentials within the default configuration of an affected device. An attacker who has access to an affected device could log in with elevated privileges. A successful exploit could allow the attacker to take complete control of the device. This vulnerability affects Cisco devices that are running Cisco IOS XE SD-WAN Software releases 16.11 and earlier.

Credit: ykramarz@cisco.com

Affected SoftwareAffected VersionHow to fix
Cisco IOS XE<=16.11
Cisco 1100-4p Integrated Services Router
Cisco 1100-8p Integrated Services Router
Cisco 1101-4p Integrated Services Router
Cisco 1109-2p Integrated Services Router
Cisco 1109-4p Integrated Services Router
Cisco 1111x-8p Integrated Services Router
Cisco 4221 Integrated Services Router
Cisco 4331 Integrated Services Router
Cisco 4431 Integrated Services Router
Cisco 4461 Integrated Services Router
Cisco Asr 1000-x
Cisco Asr 1001-hx
Cisco Asr 1002-hx
Cisco Asr 1002-x
Cisco Asr 1004
Cisco Asr 1006
Cisco Asr 1006-x
Cisco Asr 1009-x
Cisco Asr 1013
Cisco Csr1000v
Cisco Ir1101
Cisco Nexus 56128p
Cisco Nexus 5624q
Cisco Nexus 5648q
Cisco Nexus 5672up
Cisco Nexus 5672up-16g
Cisco Nexus 5696q
Cisco Ucs-e1120d-m3
Cisco Ucs-e140s-m2
Cisco Ucs-e160d-m2
Cisco Ucs-e160s-m3
Cisco Ucs-e180d-m2
Cisco Ucs-e180d-m3

Remedy

Cisco fixed this vulnerability in Cisco IOS XE SD-WAN Software Release 16.12.1.

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Reference Links

Frequently Asked Questions

  • What is CVE-2019-1950?

    CVE-2019-1950 is a vulnerability in Cisco IOS XE SD-WAN Software that allows an unauthenticated, local attacker to gain unauthorized access to an affected device.

  • What is the severity of CVE-2019-1950?

    The severity of CVE-2019-1950 is high with a CVSS score of 8.4.

  • How can an attacker exploit CVE-2019-1950?

    An attacker can exploit CVE-2019-1950 by using default credentials within the default configuration of the affected device.

  • Which devices are affected by CVE-2019-1950?

    Cisco IOS XE SD-WAN Software versions up to and including 16.11 are affected by CVE-2019-1950.

  • How can I fix CVE-2019-1950?

    To fix CVE-2019-1950, upgrade to a fixed software release based on the Cisco IOS XE Software release that you have installed.

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