Citrix NetScaler Web management interface information disclosure

netscaler-webmanagement-info-disclosure (38646)

Low Risk

Description:

Citrix NetScaler could allow a remote attacker to obtain sensitive information. The Web management interface stores user credentials within a cookie using weak encryption. A remote attacker could exploit this vulnerability using a known-plaintext attack to capture a cookie and obtain cleartext credentials and other sensitive information.

*CVSS:

Base Score:	5
Access Vector:	Network
Access Complexity:	Low
Authentication:	None
Confidentiality Impact:	Partial
Integrity Impact:	None
Availability Impact:	None
Temporal Score:	4
Exploitability:	Unproven
Remediation Level:	Unavailable
Report Confidence:	Uncorroborated

Consequences:

Obtain Information

Remedy:

No remedy available as of May 1, 2013.

References:

• BugTraq Mailing List, Sun Nov 25 2007 - 20:06:03 CST : Citrix NetScaler Web Management Cookie Weakness.
• Citrix Systems Web site: Citrix.
• CVE-2007-6192: The web management interface in Citrix NetScaler 8.0 build 47.8 uses weak encryption (XOR of unpadded data) to store credentials within a cookie, which makes it easier for remote attackers to obtain cleartext credentials when a cookie is captured via a known-plaintext attack.
• OSVDB ID: 44156: Citrix NetScaler Web Management Interface Cookie Credentials Encryption Weakness
• SECTRACK ID: 1018991: Citrix NetScaler Cookie Weakness May Let Users Access Arbitrary Accounts

Platforms Affected:

• Citrix NetScaler 8.0_build_47.8

Reported:

Nov 25, 2007

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 the author/distributor (IBM Internet Security Systems X-Force) be held liable for any damages whatsoever arising out of or in connection with the use or spread of this information.

For corrections or additions please email ignore thisxforceignore this@ignore thisus.ignore thisibm.comignore this

Return to the main page

* According to the Forum of Incident Response and Security Teams (FIRST), the Common Vulnerability Scoring System (CVSS) is an "industry open standard designed to convey vulnerability severity and help to determine urgency and priority of response." IBM PROVIDES THE CVSS SCORES "AS IS" WITHOUT WARRANTY OF ANY KIND, INCLUDING THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE. CUSTOMERS ARE RESPONSIBLE FOR ASSESSING THE IMPACT OF ANY ACTUAL OR POTENTIAL SECURITY VULNERABILITY.
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.

About IBM Internet Security Systems

IBM Internet Security Systems is a trusted security advisor to thousands of the world's leading businesses and governments, helping to provide pre-emptive protection for networks, desktops and servers. The IBM Proventia? integrated security platform is designed to automatically protect against both known and unknown threats, helping to keep networks up and running and shield customers from online attacks before they impact business assets. IBM Internet Security Systems products and services are based on the proactive security intelligence of its X-Force? research and development team ? an unequivocal world authority in vulnerability and threat research. The IBM Internet Security Systems product line is also complemented by comprehensive Managed Security Services and Professional Security Services. For more information, visit the IBM Internet Security Systems Web site at www.iss.net or call 800-776-2362.