CVE-2020-26066 Cisco SD-WAN vManage Software XML External Entity Vulnerability

Medium 6.5 Published 18 Nov 2024 Updated 18 Nov 2024

Authenticated attackers can read and write files via XXE in Cisco SD-WAN vManage by tricking users into importing malicious XML files.

Exploited in the wild: Not known
Login needed: Any signed-in user
Attackable: Over the internet
Victim action needed: Not needed
Fix: None listed

What is CVE-2020-26066?

CVE-2020-26066 is a medium-severity vulnerability in Cisco Catalyst Sd-Wan Manager, published on 18 Nov 2024. Any signed-in user can exploit it over the network, with no action from the victim.

Official description

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.

Weakness: CWE-611

Which versions are affected by CVE-2020-26066?

It affects 1 product.

Products include Cisco Catalyst Sd-Wan Manager.

How do I fix CVE-2020-26066?

No fix has been published for CVE-2020-26066 yet. Limit exposure of the affected software until one is available.

Is CVE-2020-26066 being exploited?

There is no known exploitation of CVE-2020-26066 in the wild and no public exploit code.

All Cisco Catalyst Sd-Wan Manager vulnerabilities

Sources

Also known as GHSA-g2vx-f8p2-fq5g.