Detections
Analytics
Microsoft Windows SMTP Service NTLM Null Session Authorization Bypass (uncredentialed check)
medium Nessus Plugin ID 11308
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Synopsis
The remote SMTP server is affected by an authorization bypass vulnerability.Description
It is possible to authenticate to the remote SMTP service by logging in with a NULL session.An attacker may use this flaw to use your SMTP server as a spam relay.
Solution
Microsoft has released patches for Windows NT and 2000 as well as Exchange Server 5.5.See Also
https://docs.microsoft.com/en-us/security-updates/SecurityBulletins/2002/ms02-011
Plugin Details
Severity: Medium
ID: 11308
File Name: mssmtp_null_auth.nasl
Version: 1.29
Type: remote
Family: SMTP problems
Published: 3/2/2003
Updated: 11/15/2018
Supported Sensors: Nessus
Risk Information
VPR
Risk Factor: Medium
Score: 5.3
CVSS v2
Risk Factor: Medium
Base Score: 6.4
Temporal Score: 4.7
Vector: CVSS2#AV:N/AC:L/Au:N/C:N/I:P/A:P
Vulnerability Information
Exploit Ease: No known exploits are available
Vulnerability Publication Date: 4/9/2004
Reference Information
CVE: CVE-2002-0054
BID: 4205