Crafty Syntax Live Help multiple scripts cross-site scripting

cslh-multiple-xss (40636) The risk level is classified as MediumMedium Risk

Description:

Crafty Syntax Live Help (CSLH) is vulnerable to cross-site scripting, caused by improper validation of user-supplied input by the lostsheep.php, livehelp.php, user_questions.php, and leavemessage.php scripts. A remote attacker could exploit this vulnerability using a specially-crafted URL to execute script in a victim's Web browser within the security context of the hosting Web site, once the URL is clicked. An attacker could use this vulnerability to steal the victim's cookie-based authentication credentials.

*CVSS:

Base Score: 4.3
  Access Vector: Network
  Access Complexity: Medium
  Authentication: None
  Confidentiality Impact: None
  Integrity Impact: Partial
  Availability Impact: None
 
Temporal Score: 3.7
  Exploitability: High
  Remediation Level: Official-Fix
  Report Confidence: Confirmed

Consequences:

Gain Access

Remedy:

Upgrade to the latest version of Crafty Syntax Live Help (2.14.6 or later), available from the Crafty Syntax Live Help Web site. See References.

References:

  • BugTraq Mailing List, Mon Feb 18 2008 - 06:48:57 CST: Crafty Syntax Xss Vulnerability.
  • Crafty Syntax Live Help Web site: Crafty Syntax Live Help an Open Source Live Support.
  • SourceForge.net: Files: Crafty Syntax Live Help (CSLH) - File Release Notes and Changelog - Release Name: Version 2.14.6.
  • BID-27859: Crafty Syntax Live Help 'lostsheep.php' Cross-Site Scripting Vulnerability
  • BID-28071: Crafty Syntax Live Help Multiple Cross-Site Scripting Vulnerabilities
  • CVE-2008-0848: Cross-site scripting (XSS) vulnerability in lostsheep.php in Crafty Syntax Live Help (CSLH) before 2.14.16, allows remote attackers to inject arbitrary web script or HTML via unspecified vectors. NOTE: the versions claimed by the original researcher are probably incorrect.
  • CVE-2008-1183: Multiple cross-site scripting (XSS) vulnerabilities in Crafty Syntax Live Help (CSLH) before 2.14.6 allow remote attackers to inject arbitrary web script or HTML via unspecified parameters to (1) livehelp.php, (2) user_questions.php, and (3) leavemessage.php. NOTE: the lostsheep.php vector is covered by CVE-2008-0848.
  • OSVDB ID: 42191: Crafty Syntax Live Help (CSLH) lostsheep.php XSS
  • OSVDB ID: 42473: Crafty Syntax Live Help (CSLH) livehelp.php XSS
  • OSVDB ID: 42474: Crafty Syntax Live Help (CSLH) user_questions.php XSS
  • OSVDB ID: 42475: Crafty Syntax Live Help (CSLH) leavemessage.php XSS
  • SA29201: Crafty Syntax Live Help Cross-Site Scripting Vulnerabilities

Platforms Affected:

  • Crafty Syntax Live Help (CSLH) Crafty Syntax Live Help (CSLH) 2.14.3
  • Crafty Syntax Live Help (CSLH) Crafty Syntax Live Help (CSLH) 2.14.4
  • Crafty Syntax Live Help (CSLH) Crafty Syntax Live Help (CSLH) 2.14.5

Reported:

Feb 18, 2008

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