high
8.1
CWE
611
Advisory Published
Updated

CVE-2020-26064: XEE

First published: Fri Aug 04 2023(Updated: )

A vulnerability in the web UI of Cisco SD-WAN vManage Software could allow an authenticated, remote attacker to gain read and write access to information that is stored on an affected system. The vulnerability is due to improper handling of XML External Entity (XXE) entries when parsing certain XML files. An attacker could exploit this vulnerability by persuading a user to import a crafted XML file with malicious entries. A successful exploit could allow the attacker to read and write files within the affected application.

Credit: ykramarz@cisco.com ykramarz@cisco.com

Affected SoftwareAffected VersionHow to fix
Cisco Catalyst SD-WAN Manager=17.2.4
Cisco Catalyst SD-WAN Manager=17.2.5
Cisco Catalyst SD-WAN Manager=17.2.6
Cisco Catalyst SD-WAN Manager=17.2.7
Cisco Catalyst SD-WAN Manager=17.2.8
Cisco Catalyst SD-WAN Manager=17.2.9
Cisco Catalyst SD-WAN Manager=17.2.10
Cisco Catalyst SD-WAN Manager=18.2.0
Cisco Catalyst SD-WAN Manager=18.3.0
Cisco Catalyst SD-WAN Manager=18.3.1
Cisco Catalyst SD-WAN Manager=18.3.1.1
Cisco Catalyst SD-WAN Manager=18.3.3
Cisco Catalyst SD-WAN Manager=18.3.3.1
Cisco Catalyst SD-WAN Manager=18.3.4
Cisco Catalyst SD-WAN Manager=18.3.5
Cisco Catalyst SD-WAN Manager=18.3.6.1
Cisco Catalyst SD-WAN Manager=18.3.7
Cisco Catalyst SD-WAN Manager=18.3.8
Cisco Catalyst SD-WAN Manager=18.4.0
Cisco Catalyst SD-WAN Manager=18.4.0.1
Cisco Catalyst SD-WAN Manager=18.4.1
Cisco Catalyst SD-WAN Manager=18.4.3
Cisco Catalyst SD-WAN Manager=18.4.4
Cisco Catalyst SD-WAN Manager=18.4.5
Cisco Catalyst SD-WAN Manager=18.4.302
Cisco Catalyst SD-WAN Manager=18.4.303
Cisco Catalyst SD-WAN Manager=19.1.0
Cisco Catalyst SD-WAN Manager=19.2.0
Cisco Catalyst SD-WAN Manager=19.2.1
Cisco Catalyst SD-WAN Manager=19.2.2
Cisco Catalyst SD-WAN Manager=19.2.3
Cisco Catalyst SD-WAN Manager=19.2.31
Cisco Catalyst SD-WAN Manager=19.2.097
Cisco Catalyst SD-WAN Manager=19.2.099
Cisco Catalyst SD-WAN Manager=19.2.929
Cisco Catalyst SD-WAN Manager=19.3.0
Cisco Catalyst SD-WAN Manager=20.1.1
Cisco Catalyst SD-WAN Manager=20.1.1.1
Cisco Catalyst SD-WAN Manager=20.1.12
Cisco Catalyst SD-WAN Manager=20.3.1

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Reference Links

Frequently Asked Questions

  • What is CVE-2020-26064?

    CVE-2020-26064 is a vulnerability in the web UI of Cisco SD-WAN vManage Software that allows an authenticated remote attacker to gain read and write access to information stored on the affected system.

  • What is the severity of CVE-2020-26064?

    The severity of CVE-2020-26064 is high, with a CVSS score of 8.1.

  • Which versions of Cisco SD-WAN vManage Software are affected by CVE-2020-26064?

    Versions 17.2.4 to 20.3.1 of Cisco SD-WAN vManage Software are affected by CVE-2020-26064.

  • How does CVE-2020-26064 work?

    CVE-2020-26064 exploits improper handling of XML External Entity (XXE) entries in the parsing of certain XML files, allowing an attacker to gain unauthorized access.

  • Is there a fix for CVE-2020-26064?

    Yes, Cisco has released software updates to address the vulnerability. It is recommended to update to the latest version of Cisco SD-WAN vManage Software.

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