Link following in Cisco AnyConnect Secure Mobility Client - CVE-2020-3432
Published: July 2, 2020
Vulnerability identifier: #VU29467
CSH Severity: Low
CVSS v4: 5.2 [CVSS:4.0/AV:L/AC:L/AT:N/PR:L/UI:A/VC:N/VI:L/VA:H/SC:N/SI:N/SA:N]
CVE-ID: CVE-2020-3432
CWE-ID: CWE-59
Exploitation vector: Local access
Exploit availability:
No public exploit available
Vulnerability details
The vulnerability allows a local user to corrupt the content of any file in the filesystem.
The vulnerability exists due to the incorrect handling of directory paths in the uninstaller component. A local user can create a symbolic link (symlink) to a target file on a specific path and corrupt the contents of the file, leading to denial of service (DoS) condition.
Affected software
Cisco AnyConnect Secure Mobility Client
How to mitigate CVE-2020-3432
Install updates from vendor's website.
Cisco AnyConnect Secure Mobility Client - update to 4.9.00086