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[email protected]CVE-2023-20178

HistoryJun 28, 2023 - 3:15 p.m.

CVE-2023-20178

2023-06-2815:15:09

CWE-276

[email protected]

web.nvd.nist.gov

2391

vulnerability

cisco

anyconnect

secure mobility client

secure client

windows

privilege escalation

local attacker

system privileges

7.8 High

CVSS3

Attack Vector

LOCAL

Attack Complexity

LOW

Privileges Required

LOW

User Interaction

NONE

Scope

UNCHANGED

Confidentiality Impact

HIGH

Integrity Impact

HIGH

Availability Impact

HIGH

CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H

7.6 High

AI Score

Confidence

High

0.001 Low

EPSS

Percentile

25.6%

JSON

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.

Affected configurations

NVD

Node

ciscoanyconnect_secure_mobility_clientRange<4.10.07061windows

ciscosecure_clientRange<5.0.02075windows

CPENameOperatorVersion
cisco:anyconnect_secure_mobility_clientcisco anyconnect secure mobility clientlt4.10.07061
cisco:secure_clientcisco secure clientlt5.0.02075

CPE	Name	Operator	Version
cisco:anyconnect_secure_mobility_client	cisco anyconnect secure mobility client	lt	4.10.07061
cisco:secure_client	cisco secure client	lt	5.0.02075

CNA Affected

[
  {
    "vendor": "Cisco",
    "product": "Cisco Secure Client",
    "versions": [
      {
        "version": "4.9.00086",
        "status": "affected"
      },
      {
        "version": "4.9.01095",
        "status": "affected"
      },
      {
        "version": "4.9.02028",
        "status": "affected"
      },
      {
        "version": "4.9.03047",
        "status": "affected"
      },
      {
        "version": "4.9.03049",
        "status": "affected"
      },
      {
        "version": "4.9.04043",
        "status": "affected"
      },
      {
        "version": "4.9.04053",
        "status": "affected"
      },
      {
        "version": "4.9.05042",
        "status": "affected"
      },
      {
        "version": "4.9.06037",
        "status": "affected"
      },
      {
        "version": "4.10.00093",
        "status": "affected"
      },
      {
        "version": "4.10.01075",
        "status": "affected"
      },
      {
        "version": "4.10.02086",
        "status": "affected"
      },
      {
        "version": "4.10.03104",
        "status": "affected"
      },
      {
        "version": "4.10.04065",
        "status": "affected"
      },
      {
        "version": "4.10.04071",
        "status": "affected"
      },
      {
        "version": "4.10.05085",
        "status": "affected"
      },
      {
        "version": "4.10.05095",
        "status": "affected"
      },
      {
        "version": "4.10.05111",
        "status": "affected"
      },
      {
        "version": "4.10.06079",
        "status": "affected"
      },
      {
        "version": "4.10.06090",
        "status": "affected"
      },
      {
        "version": "5.0.00238",
        "status": "affected"
      },
      {
        "version": "5.0.00529",
        "status": "affected"
      },
      {
        "version": "5.0.00556",
        "status": "affected"
      },
      {
        "version": "5.0.01242",
        "status": "affected"
      }
    ]
  }
]