ASSP get?file URL unauthorized file access

assp-getfile-url-file-access (28392) The risk level is classified as MediumMedium Risk

Description:

ASSP (Anti-Spam SMTP Proxy Server) could allow an authenticated remote attacker to gain unauthorized access to known files, caused by improper validation of the get?file parameter in a URL request. An attacker could send a specially-crafted URL request using the get?file parameter to access any known file on the server or a mapped network drive by supplying the direct path to the targeted file.

*CVSS:

Base Score: 2.1
  Access Vector: Remote
  Access Complexity: Low
  Authentication: Required
  Confidentiality Impact: Partial
  Integrity Impact: None
  Availability Impact: None
 
Temporal Score: 1.8
  Exploitability: High
  Remediation Level: Official-Fix
  Report Confidence: Confirmed

Consequences:

Obtain Information

Remedy:

Upgrade to the latest version of ASSP (1.2.4. or later), available from the ASSP Web site. See References.

References:

  • ASSP Web site: Stopping spam with the Anti-Spam-SMTP-Proxy (ASSP).
  • Full-Disclosure Mailing List, Tue Aug 15 2006 - 18:57:14 CDT: ASSP żget?fileż Traversal Vulnerability.
  • BID-19545: Anti-Spam SMTP Proxy Server Unauthorized File Access Vulnerability
  • CVE-2006-4258: Absolute path traversal vulnerability in the get functionality in Anti-Spam SMTP Proxy (ASSP) allows remote authenticated users to read arbitrary files via (1) C:\ (Windows drive letter), (2) UNC, and possibly other types of paths in the file parameter.
  • SA21523: ASSP "file" Parameter Disclosure of Sensitive Information
  • VUPEN/ADV-2006-3289: ASSP file Parameter Handling Remote Directory Traversal and File Disclosure Vulnerability

Platforms Affected:

  • aMSN aMSN

Reported:

Aug 16, 2006

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 the author/distributor (IBM Internet Security Systems X-Force) be held liable for any damages whatsoever arising out of or in connection with the use or spread of this information.

For corrections or additions please email xforce@iss.net

Return to the main page

* 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.

About IBM Internet Security Systems

IBM Internet Security Systems is a trusted security advisor to thousands of the world's leading businesses and governments, helping to provide pre-emptive protection for networks, desktops and servers. The IBM Proventia? integrated security platform is designed to automatically protect against both known and unknown threats, helping to keep networks up and running and shield customers from online attacks before they impact business assets. IBM Internet Security Systems products and services are based on the proactive security intelligence of its X-Force? research and development team ? an unequivocal world authority in vulnerability and threat research. The IBM Internet Security Systems product line is also complemented by comprehensive Managed Security Services and Professional Security Services. For more information, visit the IBM Internet Security Systems Web site at www.iss.net or call 800-776-2362.