CVE-2018-0420 Cisco Wireless LAN Controller Software Directory Traversal Vulnerability
An authenticated attacker can exploit improper input sanitization to view sensitive system files on Cisco Wireless LAN Controllers.
- 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-2018-0420?
CVE-2018-0420 is a medium-severity path traversal vulnerability in Cisco Wireless Lan Controller Software, published on 17 Oct 2018. Any signed-in user can exploit it over the network, with no action from the victim.
Official description
A vulnerability in the web-based interface of Cisco Wireless LAN Controller Software could allow an authenticated, remote attacker to view sensitive information. The issue is due to improper sanitization of user-supplied input in HTTP request parameters that describe filenames and pathnames. An attacker could exploit this vulnerability by using directory traversal techniques to submit a path to a desired file location. A successful exploit could allow the attacker to view system files on the targeted device, which may contain sensitive information.
Weakness: CWE-22
Which versions are affected by CVE-2018-0420?
It affects 1 product.
Products include Cisco Wireless Lan Controller Software.
How do I fix CVE-2018-0420?
No fix has been published for CVE-2018-0420 yet. Limit exposure of the affected software until one is available.
Upgrade, and resolve every user-supplied path against an allowed base folder before opening it. More about Path traversal.
Is CVE-2018-0420 being exploited?
There is no known exploitation of CVE-2018-0420 in the wild and no public exploit code.
Other vulnerabilities in Cisco Wireless Lan Controller Software
Sources
Also known as GHSA-5wmr-q26h-9p6x.