A vulnerability in the client update process of Cisco AnyConnect Secure Mobility Client Software for Windows and Cisco Secure Client Software for Windows could allow a low-privileged, authenticated, local attacker to elevate privileges to those of SYSTEM. The client update process is executed after a successful VPN connection is established. This vulnerability exists because improper permissions are assigned to a temporary directory that is created during the update process. An attacker could exploit this vulnerability by abusing a specific function of the Windows installer process. A successful exploit could allow the attacker to execute code with SYSTEM privileges.
Published 2023-06-28 15:15:10
Updated 2024-01-25 17:15:33
View at NVD,   CVE.org
Vulnerability category: Execute code

Products affected by CVE-2023-20178

Exploit prediction scoring system (EPSS) score for CVE-2023-20178

0.06%
Probability of exploitation activity in the next 30 days EPSS Score History
~ 24 %
Percentile, the proportion of vulnerabilities that are scored at or less

CVSS scores for CVE-2023-20178

Base Score Base Severity CVSS Vector Exploitability Score Impact Score Score Source First Seen
7.8
HIGH CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
1.8
5.9
NIST
7.8
HIGH CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
1.8
5.9
Cisco Systems, Inc.

CWE ids for CVE-2023-20178

  • During installation, installed file permissions are set to allow anyone to modify those files.
    Assigned by:
    • nvd@nist.gov (Primary)
    • ykramarz@cisco.com (Secondary)

References for CVE-2023-20178

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