CVE-2021-1582 Cisco Application Policy Infrastructure Controller Stored Cross-Site Scripting Vulnerability

Medium 5.4 Published Updated

An authenticated attacker can inject malicious scripts into the Cisco APIC web UI, allowing arbitrary code execution or data theft in the victim's browser.

Exploited in the wild
Not known
Login needed
Any signed-in user
Attackable
Over the internet
Victim action needed
A user has to click or open something
Fix
None listed

What is CVE-2021-1582?

CVE-2021-1582 is a medium-severity cross-site scripting vulnerability in Cisco Application Policy Infrastructure Controller (APIC), published on 25 Aug 2021. Any signed-in user can exploit it over the network, and only if a user opens a file or follows a link.

Official description

A vulnerability in the web UI of Cisco Application Policy Infrastructure Controller (APIC) or Cisco Cloud APIC could allow an authenticated, remote attacker to perform a stored cross-site scripting attack on an affected system. This vulnerability is due to improper input validation in the web UI. An authenticated attacker could exploit this vulnerability by sending malicious input to the web UI. A successful exploit could allow the attacker to execute arbitrary script code in the context of the web-based interface or access sensitive, browser-based information.

Weakness: CWE-79

Which versions are affected by CVE-2021-1582?

It affects 2 products.

Products include Cisco Application Policy Infrastructure Controller, Cisco Cloud Application Policy Infrastructure Controller.

How do I fix CVE-2021-1582?

No fix has been published for CVE-2021-1582 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-2021-1582 being exploited?

There is no known exploitation of CVE-2021-1582 in the wild and no public exploit code.

Sources

Also known as GHSA-h49f-v2qm-5q9g.

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