Detections
Analytics

CredSSP Remote Code Execution Vulnerability March 2018 Security Update

high Nessus Plugin ID 128764

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Synopsis

The remote Windows host is affected by a remote code execution vulnerability.

Description

The remote Windows host allows fallback to insecure versions of Credential Security Support Provider protocol (CredSSP). It is therefore, affected by a remote code execution vulnerability. An attacker who successfully exploited this vulnerability could relay user credentials and use them to execute code on the target system. CredSSP is an authentication provider which processes authentication requests for other applications; any application which depends on CredSSP for authentication may be vulnerable to this type of attack. As an example of how an attacker would exploit this vulnerability against Remote Desktop Protocol, the attacker would need to run a specially crafted application and perform a man-in-the-middle attack against a Remote Desktop Protocol session. An attacker could then install programs; view, change, or delete data; or create new accounts with full user rights. The security update addresses the vulnerability by correcting how Credential Security Support Provider protocol (CredSSP) validates requests during the authentication process. To be fully protected against this vulnerability users must enable Group Policy settings on their systems and update their Remote Desktop clients.
Affected systems include Windows version 1909 and prior.

Solution

Apply patches and / or mitigations as described by Microsoft.

See Also

http://www.nessus.org/u?f8ad7010

http://www.nessus.org/u?858298d1

Plugin Details

Severity: High

ID: 128764

File Name: smb_nt_ms18_mar_credssp_cve_2018_0886.nasl

Version: 1.3

Type: local

Agent: windows

Family: Windows

Published: 9/13/2019

Updated: 2/28/2024

Supported Sensors: Nessus Agent, Nessus

Risk Information

VPR

Risk Factor: High

Score: 7.4

CVSS v2

Risk Factor: High

Base Score: 7.6

Temporal Score: 6

Vector: CVSS2#AV:N/AC:H/Au:N/C:C/I:C/A:C

CVSS Score Source: CVE-2018-0886

CVSS v3

Risk Factor: High

Base Score: 7

Temporal Score: 6.3

Vector: CVSS:3.0/AV:L/AC:H/PR:N/UI:R/S:U/C:H/I:H/A:H

Temporal Vector: CVSS:3.0/E:P/RL:O/RC:C

Vulnerability Information

CPE: cpe:/o:microsoft:windows

Required KB Items: Host/OS

Exploit Available: true

Exploit Ease: Exploits are available

Patch Publication Date: 3/13/2018

Vulnerability Publication Date: 3/13/2018

Reference Information

CVE: CVE-2018-0886

BID: 103265