Vulnerability Name:

CVE-1999-0945 (CCN-1223)

Assigned:1998-07-24
Published:1998-07-24
Updated:2020-04-02
Summary:Buffer overflow in Internet Mail Service (IMS) for Microsoft Exchange 5.5 and 5.0 allows remote attackers to conduct a denial of service via AUTH or AUTHINFO commands.
CVSS v3 Severity:5.3 Medium (CCN CVSS v3.1 Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:L)
Exploitability Metrics:Attack Vector (AV): Network
Attack Complexity (AC): Low
Privileges Required (PR): None
User Interaction (UI): None
Scope:Scope (S): Unchanged
Impact Metrics:Confidentiality (C): None
Integrity (I): None
Availibility (A): Low
CVSS v2 Severity:5.0 Medium (CVSS v2 Vector: AV:N/AC:L/Au:N/C:N/I:N/A:P)
Exploitability Metrics:Access Vector (AV): Network
Access Complexity (AC): Low
Authentication (Au): None
Impact Metrics:Confidentiality (C): None
Integrity (I): None
Availibility (A): Partial
5.0 Medium (CCN CVSS v2 Vector: AV:N/AC:L/Au:N/C:N/I:N/A:P)
Exploitability Metrics:Access Vector (AV): Network
Access Complexity (AC): Low
Athentication (Au): None
Impact Metrics:Confidentiality (C): None
Integrity (I): None
Availibility (A): Partial
Vulnerability Type:CWE-120
Vulnerability Consequences:Denial of Service
References:Source: CCN
Type: CIAC Information Bulletin I-080
Microsoft Exchange Denial of Service Attacks

Source: MITRE
Type: CNA
CVE-1999-0945

Source: MITRE
Type: CNA
CVE-1999-1043

Source: MSKB
Type: Patch, Vendor Advisory
Q169174

Source: CIAC
Type: Patch, Vendor Advisory
I-080

Source: CCN
Type: Internet Security Systems Security Alert #04
Denial of Service attacks against Microsoft Exchange 5.0 to 5.5

Source: CCN
Type: Microsoft Corporation Web site
Microsoft Servers - Exchange Server Home

Source: CCN
Type: Microsoft Security Bulletin MS98-007
Potential SMTP and NNTP Denial-of-Service Vulnerabilities in Microsoft Exchange Server

Source: CCN
Type: OSVDB ID: 10246
Microsoft Exchange Server Malformed NNTP AUTHINFO DoS

Source: CCN
Type: OSVDB ID: 11268
Microsoft Exchange Internet Mail Service AUTH/AUTHINFO Command DoS

Source: CCN
Type: OSVDB ID: 8211
Microsoft Exchange Server Malformed SMTP Command DoS

Source: CCN
Type: BID-924
Microsoft Exchange Server AUTH / XAUTH / AUTHINFO DoS Vulnerabilities

Source: ISS
Type: Patch, Vendor Advisory
19980724 Denial of Service attacks against Microsoft Exchange 5.0 to 5.5

Source: XF
Type: UNKNOWN
exchange-dos(1223)

Source: XF
Type: VDB Entry
exchange-dos(1223)

Source: CCN
Type: Microsoft Knowledge Base Article 169174
XFOR: IMS Halts if RFC821 Address Over 1k in Size is Received

Source: CCN
Type: Microsoft Knowledge Base Article 188341
XFOR: AUTH and EHLO Commands Cause Internet Mail Service to Stop

Source: CCN
Type: Microsoft Knowledge Base Article 188369
XADM: AUTHINFO Command Causes Information Store Problems

Vulnerable Configuration:Configuration 1:
  • cpe:/a:microsoft:exchange_server:5.0:-:*:*:*:*:*:*
  • OR cpe:/a:microsoft:exchange_server:5.5:-:*:*:*:*:*:*

  • Configuration CCN 1:
  • cpe:/a:microsoft:exchange_server:5.0:*:*:*:*:*:*:*
  • OR cpe:/a:microsoft:exchange_server:5.5:*:*:*:*:*:*:*
  • AND
  • cpe:/o:microsoft:windows_nt:4.0:*:*:*:*:*:*:*

  • * Denotes that component is vulnerable
    BACK
    microsoft exchange server 5.0 -
    microsoft exchange server 5.5 -
    microsoft exchange server 5.0
    microsoft exchange server 5.5
    microsoft windows nt 4.0