Microsoft ISA Server Web Proxy Malformed SSL Packet Remote Denial of Service Vulnerability

BID:10477

Info

Microsoft ISA Server Web Proxy Malformed SSL Packet Remote Denial of Service Vulnerability

Bugtraq ID: 10477
Class: Failure to Handle Exceptional Conditions
CVE:
Remote: Yes
Local: No
Published: Apr 21 2003 12:00AM
Updated: Apr 21 2003 12:00AM
Credit: This issue was disclosed in a Microsoft Knowledge Base Article.
Vulnerable: Microsoft ISA Server 2000 SP1
+ Microsoft Small Business Server 2000 0
+ Microsoft Small Business Server 2003 Premium Edition
- Microsoft Windows 2000 Advanced Server SP2
- Microsoft Windows 2000 Advanced Server SP1
- Microsoft Windows 2000 Datacenter Server SP2
- Microsoft Windows 2000 Datacenter Server SP1
- Microsoft Windows 2000 Server SP2
- Microsoft Windows 2000 Server SP1
Microsoft ISA Server 2000 FP1
Microsoft ISA Server 2000
+ Microsoft Small Business Server 2000 0
+ Microsoft Small Business Server 2003 Premium Edition
- Microsoft Windows 2000 Advanced Server
- Microsoft Windows 2000 Server
Not Vulnerable: Microsoft ISA Server 2000 SP2
+ Microsoft Small Business Server 2000 0
+ Microsoft Small Business Server 2003 Premium Edition

Discussion

Microsoft ISA Server Web Proxy Malformed SSL Packet Remote Denial of Service Vulnerability

Microsoft ISA Server Web Proxy is prone to a remote denial of service vulnerability. The issue presents itself when the proxy service receives a malformed SSL packet. An exceptional condition occurs in the server leading to a crash.

Microsoft ISA Server 2000 and 2000 SP1 are affected by this vulnerability.

Exploit / POC

Microsoft ISA Server Web Proxy Malformed SSL Packet Remote Denial of Service Vulnerability

Currently we are not aware of any exploits for this issue. If you feel we are in error or are aware of more recent information, please mail us at: [email protected] <mailto:[email protected]>.

Solution / Fix

Microsoft ISA Server Web Proxy Malformed SSL Packet Remote Denial of Service Vulnerability

Solution:
Microsoft has released ISA Server Service Pack 2 to address this issue:


Microsoft ISA Server 2000 SP1

References

Microsoft ISA Server Web Proxy Malformed SSL Packet Remote Denial of Service Vulnerability

References:

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