SB2020070210 - Link following in Cisco AnyConnect Secure Mobility Client for Mac OS
Published: July 2, 2020
Security Bulletin ID
SB2020070210
CSH Severity
Low
Patch available
YES
Number of vulnerabilities
1
Exploitation vector
Local access
Highest impact
Denial of service
Breakdown by Severity
- Low
- Medium
- High
- Critical
Description
This security bulletin contains information about 1 vulnerability.
1) Link following (CVE-ID: CVE-2020-3432)
CWE-ID: CWE-59 - Improper Link Resolution Before File Access ('Link Following')
CVSSv4: 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/E:U/U:Clear
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.
Remediation
Install update from vendor's website.