Computer Associates iTechnology iGateway Service Content-Length Buffer
Overflow Vulnerability

iDefense Security Advisory 01.23.06
http://www.idefense.com/intelligence/vulnerabilities/display.php?id=376
January 23, 2006

I. BACKGROUND

iTechnology is an integration technology which provides standard web
service interfaces to third-party products, exposing normalized
security event data and information in XML format.

II. DESCRIPTION

Remote exploitation of an input validation error in Computer Associates,
Inc.'s iTechnology allows remote attackers to execute arbitrary code.

The vulnerability specifically exists in the iGateway service that
listens on port 5250 for standard HTTP or SSL traffic. The iGateway
service fails to properly handle negative HTTP Content-Length values.
iGateway parses the negative content-length value from an HTTP request
and uses the value directly in a malloc() heap allocation call. By
supplying negative values, the heap allocation call will return a very
small buffer. Subsequent to the malloc() call, a memcpy of the supplied
URI into the allocated buffer can overflow into the heap. A remote
attacker can send a request with a very large URI and a negative
content-length to corrupt the heap and potentially execute arbitrary
code.

III. ANALYSIS

Successful exploitation of this vulnerability allows remote attackers to
execute arbitrary code with SYSTEM level permissions. The iTechnology
package is distributed with various Computer Associates eTrust brand
software. Any attacker who can reach port 5250 on an affected host can
attempt to exploit this vulnerability.

IV. DETECTION

iDefense has confirmed the existence of this vulnerability in Computer
Associates iTechnology iGateway 4.0. It is suspected all versions of the
iGateway package prior to and including 4.0.050615 are vulnerable.

It should be noted that iGateway is not a product, however it is a
component included with the following Computer Associates products:
  
  Advantage Data Transformer (ADT) R2.2
  Harvest Change Manager R7.1
  BrightStor Products:
  BrightStor ARCserve Backup r11.5
  BrightStor ARCserve Backup r11.1
  BrightStor ARCserve Backup for Windows r11
  BrightStor Enterprise Backup 10.5
  BrightStor ARCserve Backup v9.01
  BrightStor ARCserve Backup Laptop & Desktop r11.1
  BrightStor ARCserve Backup Laptop & Desktop r11
  BrightStor Process Automation Manager r11.1
  BrightStor SAN Manager r11.1
  BrightStor SAN Manager r11.5
  BrightStor Storage Resource Manager r11.5
  BrightStor Storage Resource Manager r11.1
  BrightStor Storage Resource Manager 6.4
  BrightStor Storage Resource Manager 6.3
  BrightStor Portal 11.1
  eTrust Audit 1.5 SP2 (iRecorders and ARIES)
  eTrust Audit 1.5 SP3 (iRecorders and ARIES)
  eTrust Audit 8.0 (iRecorders and ARIES)
  eTrust Admin 8.1
  eTrust Identity Minder 8.0
  eTrust Secure Content Manager (SCM) R8
  eTrust Integrated Threat Management (ITM) R8
  eTrust Directory R8.1 (Web Components Only)
  Unicenter CA Web Services Distributed Management R11
  Unicenter AutoSys JM R11
  Unicenter Management for WebLogic / Management for WebSphere R11
  Unicenter Service Delivery R11
  Unicenter Service Level Management (USLM) R11
  Unicenter Application Performance Monitor R11
  Unicenter Service Desk R11
  Unicenter Service Desk Knowledge Tools R11
  Unicenter Service Fulfillment 2.2
  Unicenter Service Fulfillment R11
  Unicenter Asset Portfolio Management R11
  Unicenter Service Matrix Analysis R11
  Unicenter Service Catalog/Fulfillment/Accounting R11
  Unicetner MQ Management R11
  Unicenter Application Server Managmenr R11
  Unicenter Web Server Management R11
  Unicenter Exchange Management R11

Affected platforms:
  AIX, HP-UX, Linux Intel, Solaris, and Windows

V. WORKAROUND

iDefense is unaware of any effective workarounds at this time.

VI. VENDOR RESPONSE

The vendor has released the following advisory to address this
vulnerability:

  http://www3.ca.com/securityadvisor/vulninfo/vuln.aspx?id=33778

Vendor patches are available for download at:

  ftp://ftp.ca.com/pub/iTech/downloads

VII. CVE INFORMATION

The Common Vulnerabilities and Exposures (CVE) project has assigned the
name CVE-2005-3653 to this issue. This is a candidate for inclusion in
the CVE list (http://cve.mitre.org), which standardizes names for
security problems.

VIII. DISCLOSURE TIMELINE

11/15/2005  Initial vendor notification
11/15/2005  Initial vendor response
01/23/2006  Coordinated public disclosure

IX. CREDIT

iDefense credits Erika Mendoza with the discovery of this vulnerability.

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X. LEGAL NOTICES

Copyright (c) 2006 iDefense, Inc.

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Disclaimer: The information in the advisory is believed to be accurate
at the time of publishing based on currently available information. Use
of the information constitutes acceptance for use in an AS IS condition.
There are no warranties with regard to this information. Neither the
author nor the publisher accepts any liability for any direct, indirect,
or consequential loss or damage arising from use of, or reliance on,
this information.