CVE-2021-1571 Cisco Small Business 220 Series Smart Switches Vulnerabilities

High 7.2 Published Updated

Attackers can hijack sessions, execute root commands, or perform XSS attacks on Cisco Small Business 220 Series Smart Switches via the web interface.

Exploited in the wild
Not known
Login needed
An administrator
Attackable
Over the internet
Victim action needed
Not needed
Fix
None listed

What is CVE-2021-1571?

CVE-2021-1571 is a high-severity cross-site scripting vulnerability in Cisco Small Business 220 Series Smart Plus Switches, published on 16 Jun 2021. An attacker needs administrator access to exploit it, with no action from the victim.

Official description

Multiple vulnerabilities in the web-based management interface of Cisco Small Business 220 Series Smart Switches could allow an attacker to do the following: Hijack a user session Execute arbitrary commands as a root user on the underlying operating system Conduct a cross-site scripting (XSS) attack Conduct an HTML injection attack For more information about these vulnerabilities, see the Details section of this advisory.

Weakness: CWE-79, CWE-287

Which versions are affected by CVE-2021-1571?

It affects 9 products.

Products include Cisco Sf220-24 Firmware, Cisco Sf220-24p Firmware, Cisco Sf220-48 Firmware, Cisco Sf220-48p Firmware, Cisco Sg220-26 Firmware, Cisco Sg220-26p Firmware and 3 more.

How do I fix CVE-2021-1571?

No fix has been published for CVE-2021-1571 yet. Limit exposure of the affected software until one is available.

Escape output for the context it lands in and set a strict Content Security Policy. Upgrading the affected component is the real fix. More about Cross-site scripting.

Is CVE-2021-1571 being exploited?

There is no known exploitation of CVE-2021-1571 in the wild and no public exploit code.

Sources

Also known as GHSA-38cc-hm43-pvfh.

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