CVE-2011-2882:CVE-2011-2882 is a stack-based buffer overflow vulnerability in the NSEPA.NsepaCtrl.1 ActiveX control in Citrix Access Gateway Enterprise Edition versions 8.1, 9.0, and 9.1, allowing remote attackers to execute arbitrary code via crafted HTTP header data.

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The CVE-2011-2882 vulnerability is present in the NSEPA.NsepaCtrl.1 ActiveX control within the nsepa.ocx component of Citrix Access Gateway Enterprise Edition versions 8.1, 9.0, and 9.1. This vulnerability enables remote attackers to trigger a stack-based buffer overflow by sending specially crafted HTTP header data to the affected ActiveX control. Successful exploitation of this vulnerability could allow an attacker to execute arbitrary code on the target system, potentially leading to a complete compromise of the system.

Overview

This vulnerability affects Citrix Access Gateway Enterprise Edition versions 8.1 before 8.1-67.7, 9.0 before 9.0-70.5, and 9.1 before 9.1-96.4. It was publicly disclosed on July 14, 2011, and is identified as CVE-2011-2882. The vulnerability arises from a stack-based buffer overflow in the NSEPA.NsepaCtrl.1 ActiveX control.

Remediation

To mitigate the CVE-2011-2882 vulnerability, users are advised to apply the necessary security patches provided by Citrix for the affected versions of the Access Gateway Enterprise Edition. It is recommended to update to the patched versions 8.1-67.7, 9.0-70.5, and 9.1-96.4 or later to address this vulnerability. Additionally, users should exercise caution when interacting with untrusted sources or websites that may attempt to exploit this vulnerability.

References

  1. CVE-2011-2882 Details: CVE-2011-2882
  2. SecurityReason Advisory: 8358
  3. iDefense Advisory: 20110714 Citrix Access Gateway ActiveX Stack Buffer Overflow Vulnerability

Industry ExposureMost to least
This section illustrates the prevalence of a specific Common Vulnerabilities and Exposures (CVE) across various industries based on customer reports. The ranking displays industries from the most to least affected by this particular vulnerability, offering valuable insight into where this CVE has been most frequently observed. This information can help organizations within these sectors prioritize their security efforts, understand their relative risk exposure compared to their peers, and focus remediation strategies where they are most needed. By understanding the industry-specific impact, organizations can make more informed decisions regarding patching, resource allocation, and overall risk management related to this CVE.

  1. Accommodation & Food Services
    Accommodation & Food Services
  2. Administrative, Support, Waste Management & Remediation Services
    Administrative, Support, Waste Management & Remediation Services
  3. Agriculture, Forestry Fishing & Hunting
    Agriculture, Forestry Fishing & Hunting
  4. Arts, Entertainment & Recreation
    Arts, Entertainment & Recreation
  5. Construction
    Construction
  6. Educational Services
    Educational Services
  7. Finance and Insurance
    Finance and Insurance
  8. Health Care & Social Assistance
    Health Care & Social Assistance
  9. Information
    Information
  10. Management of Companies & Enterprises
    Management of Companies & Enterprises
  11. Manufacturing
    Manufacturing
  12. Mining
    Mining
  13. Other Services (except Public Administration)
    Other Services (except Public Administration)
  14. Professional, Scientific, & Technical Services
    Professional, Scientific, & Technical Services
  15. Public Administration
    Public Administration
  16. Real Estate Rental & Leasing
    Real Estate Rental & Leasing
  17. Retail Trade
    Retail Trade
  18. Transportation & Warehousing
    Transportation & Warehousing
  19. Utilities
    Utilities
  20. Wholesale Trade
    Wholesale Trade

Focus on What Matters

  1. See Everything.
  2. Identify True Risk.
  3. Proactively Mitigate Threats.

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