Zeroboard "check_user_id.php" script cross-site scripting

zeroboard-checkuserid-xss (18680) The risk level is classified as MediumMedium Risk

Description:

Zeroboard is vulnerable to cross-site scripting, caused by improper validation of user-supplied input in the 'check_user_id.php' script. A remote attacker could embed malicious script in the 'user_id' parameter in a URL request to the 'check_user_id.php' script, which would be executed in the victim's Web browser within the security context of the hosting site with user privileges, once the link is clicked. An attacker could use this vulnerability to obtain a user's cookie-based authentication credentials.

*CVSS:

Base Score: 2.8
  Access Vector: Remote
  Access Complexity: High
  Authentication: Not Required
  Confidentiality Impact: None
  Integrity Impact: Partial
  Availability Impact: None
 
Temporal Score: 2.4
  Exploitability: High
  Remediation Level: Official-Fix
  Report Confidence: Confirmed

Consequences:

Gain Access

Remedy:

Upgrade to the latest version of Zeroboard (4.1pl5 or later), available from the Zeroboard Web site. See References.

References:

  • Full-Disclosure Mailing List, Thu Dec 23 2004 - 18:38:51 CST: STG Security Advisory: [SSA-20041220-16] PHP source injection and cross-site scripting vulnerabilities in ZeroBoard.
  • Zeroboard Web site: Zeroboard.
  • BID-12103: ZeroBoard Multiple Remote Script Injection And Cross-Site Scripting Vulnerabilities
  • CVE-2004-2738: Cross-site scripting (XSS) vulnerability in check_user_id.php in ZeroBoard 4.1pl4 and earlier allows remote attackers to inject arbitrary web script or HTML via the user_id parameter.
  • OSVDB ID: 12582: ZeroBoard check_user_id.php user_id Variable XSS
  • SA13649: Zeroboard Two Vulnerabilities
  • SECTRACK ID: 1012677: Zeroboard Input Validation Holes in out_login.php and write.php Let Remote Users Execute Arbitrary Commands

Platforms Affected:

  • Zeroboard Zeroboard 4.1pl4

Reported:

Dec 24, 2004

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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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