Cisco Catalyst SD-WAN Manager up to 20.3.1 Web UI xml external entity reference

Summaryinfo

A vulnerability labeled as problematic has been found in Cisco Catalyst SD-WAN Manager. Affected by this issue is some unknown functionality of the component Web UI. Executing a manipulation can lead to xml external entity reference. This vulnerability is tracked as CVE-2020-26066. The attack can be launched remotely. No exploit exists. The affected component should be upgraded.

Detailsinfo

A vulnerability classified as critical was found in Cisco Catalyst SD-WAN Manager. This vulnerability affects an unknown part of the component Web UI. The manipulation with an unknown input leads to a xml external entity reference vulnerability. The CWE definition for the vulnerability is CWE-611. The product processes an XML document that can contain XML entities with URIs that resolve to documents outside of the intended sphere of control, causing the product to embed incorrect documents into its output. As an impact it is known to affect confidentiality, integrity, and availability. CVE summarizes:

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.Cisco has released software updates that address this vulnerability. There are no workarounds that address this vulnerability.

The advisory is available at sec.cloudapps.cisco.com. This vulnerability was named CVE-2020-26066 since 09/24/2020. The exploitation appears to be easy. The attack can be initiated remotely. The technical details are unknown and an exploit is not available.

Upgrading eliminates this vulnerability.

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Productinfo

Type

• Network Management Software

Vendor

• Cisco

Name

• Catalyst SD-WAN Manager

Version

• 17.2.4
• 17.2.5
• 17.2.6
• 17.2.7
• 17.2.8
• 17.2.9
• 17.2.10
• 18.2.0
• 18.3.0
• 18.3.1
• 18.3.1.1
• 18.3.3
• 18.3.3.1
• 18.3.4
• 18.3.5
• 18.3.6
• 18.3.6.1
• 18.3.7
• 18.3.8
• 18.4.0
• 18.4.0.1
• 18.4.1
• 18.4.3
• 18.4.4
• 18.4.5
• 18.4.302
• 18.4.303
• 18.4.501_ES
• 19.0.0
• 19.0.1a
• 19.1.0
• 19.2.0
• 19.2.097
• 19.2.098
• 19.2.099
• 19.2.1
• 19.2.2
• 19.2.3
• 19.2.31
• 19.2.929
• 19.3.0
• 20.1.1
• 20.1.1.1
• 20.1.12
• 20.3.1

License

• commercial

Website

• Vendor: https://www.cisco.com/

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