CVE-2021-34731 Cisco Prime Access Registrar Stored Cross-Site Scripting Vulnerability
Authenticated attackers can inject malicious scripts into the web interface, enabling arbitrary code execution or data theft in victim browsers.
- Exploited in the wild
- Not known
- Login needed
- An administrator
- Attackable
- Over the internet
- Victim action needed
- A user has to click or open something
- Fix
- None listed
What is CVE-2021-34731?
CVE-2021-34731 is a medium-severity cross-site scripting vulnerability in Cisco Prime Access Registrar, published on 4 Nov 2021. An attacker needs administrator access to exploit it, and only if a user opens a file or follows a link.
Official description
A vulnerability in the web-based management interface of Cisco Prime Access Registrar could allow an authenticated, remote attacker to perform a stored cross-site scripting attack on an affected system. This vulnerability exists because the web-based management interface does not sufficiently validate user-supplied input. An attacker could exploit this vulnerability by injecting malicious code into specific pages of the interface. A successful exploit could allow the attacker to execute arbitrary script code in the context of the affected interface or access sensitive, browser-based information. To exploit this vulnerability, the attacker would need valid administrative credentials. Cisco expects to release software updates that address this vulnerability.
Weakness: CWE-79
Which versions are affected by CVE-2021-34731?
It affects 1 product.
Products include Cisco Prime Access Registrar.
How do I fix CVE-2021-34731?
No fix has been published for CVE-2021-34731 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-2021-34731 being exploited?
There is no known exploitation of CVE-2021-34731 in the wild and no public exploit code.
Other vulnerabilities in Cisco Prime Access Registrar
Sources
Also known as GHSA-g8rc-p2f3-v3x7.