Link following in Cisco IOS XE - CVE-2020-3223
Published: June 4, 2020
Vulnerability identifier: #VU28563
CSH Severity: Low
CVSS v4.0: CVSS:4.0/AV:N/AC:L/AT:N/PR:H/UI:A/VC:H/VI:N/VA:N/SC:N/SI:N/SA:N/E:U/U:Clear
CVE-ID: CVE-2020-3223
CWE-ID: CWE-59
Exploitation vector: Remote access
Exploit availability:
No public exploit available
Vendor: Cisco Systems, Inc
Affected software:
Cisco IOS XE
Cisco IOS XE
Detailed vulnerability description
The vulnerability allows a remote user to gain access to potentially sensitive information.
The vulnerability existd due to insufficient file scope limiting in the web-based user interface (web UI). A remote administrator can create a specific file reference on the filesystem, then access it through the web UI and read arbitrary files from the underlying operating system's filesystem.
How to mitigate CVE-2020-3223
Install updates from vendor's website.