FogBugz login page cross-site scripting

fogbugz-login-xss (24103)

Medium Risk

Description:

FogBugz is vulnerable to cross-site scripting, caused by improper validation of user-supplied input passed to the login page. A remote attacker could exploit this vulnerability using the "dest" parameter to execute script in a victim¿s Web browser within the security context of the hosting Web site, allowing the attacker to steal the victim¿s cookie-based authentication credentials.

*CVSS:

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

Consequences:

Gain Access

Remedy:

Contact Fog Creek Software for information on obtaining a patch for this vulnerability. See References.

References:

• BugTraq Mailing List, Thu Jan 12 2006 - 05:15:03 CST : FogBugz Cross Site Scripting Vulnerability.
• Fog Creek Software Web site: FogBugz - Project management for smart people.
• BID-16216: Fog Creek Software FogBugz Default.ASP Cross-Site Scripting Vulnerability
• CVE-2006-0194: Cross-site scripting (XSS) vulnerability in default.asp in FogBugz 4.029, and other versions before 4.0.33, allows remote attackers to inject arbitrary web script or HTML via the dest parameter in the pgLogon page.
• OSVDB ID: 22370: FogBugz pgLogon.php dest Variable XSS
• SA18443: FogBugz "dest" Cross-Site Scripting Vulnerability
• VUPEN/ADV-2006-0174: FogBugz dest Parameter Handling Cross Site Scripting Vulnerability

Platforms Affected:

• Fog Creek FogBugz 4.029 and prior

Reported:

Jan 12, 2006

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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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