IBM Lotus Symphony and Expeditor Client rcplauncher.exe code execution

expeditor-rcplauncher-code-execution (41990) The risk level is classified as HighHigh Risk

Description:

IBM Lotus Symphony and Lotus Expeditor Client for Desktop could allow a remote attacker to execute arbitrary code on the system, caused by insecure use of the cai: URI handler (rcplauncher.exe). By persuading a victim to click on a cai: URI that passes a specially-crafted request to the -launcher option, a remote attacker could execute arbitrary code on the system.

*CVSS:

Base Score: 9.3
  Access Vector: Network
  Access Complexity: Medium
  Authentication: None
  Confidentiality Impact: Complete
  Integrity Impact: Complete
  Availability Impact: Complete
 
Temporal Score: 7.3
  Exploitability: Proof-of-Concept
  Remediation Level: Official-Fix
  Report Confidence: Confirmed

Consequences:

Gain Access

Remedy:

Refer to IBM Technote (FAQ) 1303813 for patch, upgrade or suggested workaround information. See References.

References:

  • Full-Disclosure Mailing List, Thu Apr 24 2008 - 08:43:57 CDT: Lotus expeditor rcplauncher uri handler vulnerability.
  • IBM Lotus Symphony Web site: IBM Lotus Symphony.
  • IBM Technote (FAQ) 1303813: URL handler vulnerability affects Lotus Symphony and Lotus Expeditor.
  • BID-28926: IBM Lotus Expeditor URI Handler Command Execution Vulnerability
  • CVE-2008-1965: Argument injection vulnerability in the cai: URI handler in rcplauncher in IBM Lotus Expeditor Client for Desktop 6.1.1 and 6.1.2, as used by Lotus Symphony and possibly other products, allows remote attackers to execute arbitrary code by injecting a -launcher option via a cai: URI, as demonstrated by a reference to a UNC share pathname.
  • SA29958: IBM Lotus Expeditor Client for Desktop "cai" URI Handler Code Execution
  • SECTRACK ID: 1019951: IBM Lotus Symphony URI Handler Bug Lets Remote Users Execute Arbitrary Code
  • SECTRACK ID: 1019952: IBM Lotus Expeditor URI Handler Bug Lets Remote Users Execute Arbitrary Code
  • VUPEN/ADV-2008-1394: IBM Lotus Expeditor cai: URI Handler Command Injection Vulnerability

Platforms Affected:

  • IBM Lotus Expeditor Client for Desktop 6.1.0
  • IBM Lotus Expeditor Client for Desktop 6.1.1
  • IBM Lotus Expeditor Client for Desktop 6.1.2
  • IBM Lotus Symphony beta4

Reported:

Apr 24, 2008

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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.

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