Pi3Web ISAPI denial of service
| pi3web-isapi-dos (46600) |  Medium Risk |
Description:
Pi3Web HTTP Server is vulnerable to a denial of service, caused by the improper handling of HTTP requests for files in the ISAPI directory. If Pi3Web is installed as a Desktop application, a remote attacker could send multiple HTTP requests for specific files to cause the server to hang, resulting in a denial of service.
*CVSS:
| Base Score: | 4.3 |
| Access Vector: | Network |
| Access Complexity: | Medium |
| Authentication: | None |
| Confidentiality Impact: | None |
| Integrity Impact: | None |
| Availability Impact: | Partial |
| Temporal Score: | 3.2 |
| Exploitability: | Unproven |
| Remediation Level: | Official-Fix |
| Report Confidence: | Confirmed |
Consequences:
Denial of Service
Remedy:
Upgrade to the latest version of Pi3Web (2.0.3 PL2 or later), available from SourceForge.net: Files. See References.
References:
- Pi3Web Web site: Pi3Web.
- SourceForge.net: Files: Pi3Web.
- BID-32287: pi3Web ISAPI Directory Remote Denial Of Service Vulnerability
- CVE-2008-6938: Pi3Web 2.0.3 before PL2, when installed on Windows as a desktop application and without using the Pi3Web/Conf/Intenet.pi3, allows remote attackers to cause a denial of service (crash or hang) and obtain the full pathname of the server via a request to a file in the ISAPI directory that is not an executable DLL, which triggers the crash when the DLL load fails, as demonstrated using Isapi\users.txt.
- SA32696: Pi3Web ISAPI Requests Handling Denial of Service Vulnerability
Platforms Affected:
- Holger Zimmermann and John Roy Pi3Web 1.0.1
- Holger Zimmermann and John Roy Pi3Web 2.0
- Holger Zimmermann and John Roy Pi3Web 2.0.1
- Holger Zimmermann and John Roy Pi3web 2.0.2 Beta 1
- Holger Zimmermann and John Roy pi3Web 2.0.3 PL1
Reported:
Nov 13, 2008
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* According to the Forum of Incident Response and Security Teams (FIRST), the Common Vulnerability Scoring System (CVSS) is an "industry open standard designed to convey vulnerability severity and help to determine urgency and priority of response." IBM PROVIDES THE CVSS SCORES "AS IS" WITHOUT WARRANTY OF ANY KIND, INCLUDING THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE. CUSTOMERS ARE RESPONSIBLE FOR ASSESSING THE IMPACT OF ANY ACTUAL OR POTENTIAL SECURITY VULNERABILITY.
The information within this database may change without notice. Use of this information constitutes acceptance for use in an AS IS condition. There are NO warranties, implied or otherwise, with regard to this information or its use. Any use of this information is at the user's risk. In no event shall IBM be held liable for any damages whatsoever arising out of or in connection with the use or spread of this information.