Detections
Analytics

MS02-070: Flaw in SMB Signing Could Enable Group Policy to be Modified (329170)

medium Nessus Plugin ID 11215

Synopsis

It is possible to send unsigned SMB packets.

Description

The remote version of Windows contains a flaw in the SMB signing implementation. SMB signing is used to sign each packets sent between a client and a server to protect them against man-in-the-middle attacks.

If the Domain policy is configured to force usage of SMB signing, it is possible for an attacker to downgrade the communication to disable SMB signing and try to launch man-in-the-middle attacks.

Solution

Microsoft has released a set of patches for Windows XP and 2000.

See Also

https://docs.microsoft.com/en-us/security-updates/SecurityBulletins/2002/ms02-070

Plugin Details

Severity: Medium

ID: 11215

File Name: smb_nt_ms02-070.nasl

Version: 1.39

Type: local

Agent: windows

Published: 1/25/2003

Updated: 11/15/2018

Supported Sensors: Nessus

Risk Information

VPR

Risk Factor: Low

Score: 3.4

CVSS v2

Risk Factor: Medium

Base Score: 5.4

Temporal Score: 4

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

CVSS v3

Risk Factor: Medium

Base Score: 6.3

Temporal Score: 5.5

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

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

Vulnerability Information

CPE: cpe:/o:microsoft:windows

Required KB Items: SMB/MS_Bulletin_Checks/Possible

Exploit Ease: No known exploits are available

Patch Publication Date: 12/11/2002

Vulnerability Publication Date: 12/11/2002

Reference Information

CVE: CVE-2002-1256

BID: 6367

MSFT: MS02-070

MSKB: 329170