Vulnerability Name:

CCN-188241

Published:2020-09-14
Updated:2020-09-14
Summary:Microsoft Windows could allow a local authenticated attacker to bypass security restrictions, caused by a flaw in the Finger command tool. By sending a specially-crafted request, an attacker could exploit this vulnerability to bypass Defender security restrictions to download tools, send commands and exile data.
CVSS v3 Severity:7.3 High (CCN CVSS v3.1 Vector: CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:L)
6.6 Medium (CCN Temporal CVSS v3.1 Vector: CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:L/E:P/RL:U/RC:R)
Exploitability Metrics:Attack Vector (AV): Local
Attack Complexity (AC): Low
Privileges Required (PR): Low
User Interaction (UI): None
Scope:Scope (S): Unchanged
Impact Metrics:Confidentiality (C): High
Integrity (I): High
Availibility (A): Low
CVSS v2 Severity:6.4 Medium (CCN CVSS v2 Vector: AV:L/AC:L/Au:S/C:C/I:C/A:P)
Exploitability Metrics:Access Vector (AV): Local
Access Complexity (AC): Low
Athentication (Au): Single_Instance
Impact Metrics:Confidentiality (C): Complete
Integrity (I): Complete
Availibility (A): Partial
Vulnerability Consequences:Bypass Security
References:Source: XF
Type: UNKNOWN
ms-windows-fingercmd-sec-bypass(188241)

Source: CCN
Type: Packet Storm Security [09-14-2020]
Microsoft Windows Finger Security Bypass / C2 Channel

Source: EXPLOIT-DB
Type: EXPLOIT
Offensive Security Exploit Database [09-16-2020]

Source: CCN
Type: Microsoft Web site
Microsoft Windows 10

Vulnerable Configuration:Configuration CCN 1:
  • cpe:/o:microsoft:windows_10:-:*:*:*:*:*:x32:*
  • OR cpe:/o:microsoft:windows_10:*:*:*:*:*:*:x64:*

    • * Denotes that component is vulnerable
    BACK
    microsoft windows 10 -
    microsoft windows 10 *