CVE-2020-3356 Cisco Data Center Network Manager Stored Cross-Site Scripting Vulnerability
Unauthenticated attackers can inject malicious scripts into log files, leading to arbitrary code execution or data theft in the Cisco DCNM web interface.
- Exploited in the wild
- Not known
- Login needed
- Not needed
- Attackable
- Over the internet
- Victim action needed
- A user has to click or open something
- Fix
- None listed
What is CVE-2020-3356?
CVE-2020-3356 is a medium-severity cross-site scripting vulnerability in Cisco Data Center Network Manager, published on 18 Jun 2020. An attacker can exploit it over the internet without logging in, and only if a user opens a file or follows a link.
Official description
A vulnerability in the web-based management interface of Cisco Data Center Network Manager (DCNM) could allow an unauthenticated, remote attacker to conduct a cross-site scripting (XSS) attack against a user of the interface. The vulnerability is due to insufficient input validation by the web-based management interface. An attacker could exploit this vulnerability by interacting with the interface in a way that injects malicious content in a log file. 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.
Weakness: CWE-79
Which versions are affected by CVE-2020-3356?
It affects 1 product.
Products include Cisco Data Center Network Manager.
How do I fix CVE-2020-3356?
No fix has been published for CVE-2020-3356 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-2020-3356 being exploited?
There is no known exploitation of CVE-2020-3356 in the wild and no public exploit code.
Other vulnerabilities in Cisco Data Center Network Manager
- CVE-2020-3382 Cisco Data Center Network Manager Authentication Bypass Vulnerability
- CVE-2019-15975 Cisco Data Center Network Manager Authentication Bypass Vulnerabilities
- CVE-2019-15976 Cisco Data Center Network Manager Authentication Bypass Vulnerabilities
- CVE-2019-15977 Cisco Data Center Network Manager Authentication Bypass Vulnerabilities
- CVE-2019-1619 Cisco Data Center Network Manager Authentication Bypass Vulnerability
Sources
Also known as GHSA-f84r-f3q6-hgmv.