Description Preview
The CSecurityTLS::processMsg function in common/rfb/CSecurityTLS.cxx in the vncviewer component in TigerVNC 1.1beta1 does not properly verify the server's X.509 certificate, which allows attackers to perform man-in-the-middle attacks by spoofing a TLS VNC server using a crafted certificate.
Overview
This vulnerability in TigerVNC 1.1beta1 allows malicious actors to intercept and manipulate communications between a VNC client and server by presenting a fake TLS certificate, potentially leading to unauthorized access to sensitive information or control over the VNC session.
Remediation
To remediate this vulnerability, users of TigerVNC 1.1beta1 should update to a patched version that includes proper validation of the server's X.509 certificate. It is recommended to upgrade to a newer version of TigerVNC that addresses this issue to prevent man-in-the-middle attacks.
References
- [oss-security] 20110506 CVE request: tigervnc - http://openwall.com/lists/oss-security/2011/05/06/2
- [oss-security] 20110509 Re: CVE request: tigervnc - http://openwall.com/lists/oss-security/2011/05/09/7
- [tigervnc-devel] 20110504 potential vulnerability in TLS secType? - http://www.mail-archive.com/tigervnc-devel%40lists.sourceforge.net/msg01342.html
- [tigervnc-devel] 20110504 Re: potential vulnerability in TLS secType? - http://www.mail-archive.com/tigervnc-devel%40lists.sourceforge.net/msg01345.html
- https://bugzilla.redhat.com/show_bug.cgi?id=702672
- FEDORA-2011-6838 - http://lists.fedoraproject.org/pipermail/package-announce/2011-May/060567.html
- RHSA-2011:0871 - http://www.redhat.com/support/errata/RHSA-2011-0871.html
- 44939 - http://secunia.com/advisories/44939
- 47738 - http://www.securityfocus.com/bid/47738
- [tigervnc-devel] 20110505 Re: potential vulnerability in TLS secType? - http://www.mail-archive.com/tigervnc-devel%40lists.sourceforge.net/msg01347.html
Industry ExposureMost to leastThis 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.
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.
- Accommodation & Food ServicesAccommodation & Food Services
- Administrative, Support, Waste Management & Remediation ServicesAdministrative, Support, Waste Management & Remediation Services
- Agriculture, Forestry Fishing & HuntingAgriculture, Forestry Fishing & Hunting
- Arts, Entertainment & RecreationArts, Entertainment & Recreation
- ConstructionConstruction
- Educational ServicesEducational Services
- Finance and InsuranceFinance and Insurance
- Health Care & Social AssistanceHealth Care & Social Assistance
- InformationInformation
- Management of Companies & EnterprisesManagement of Companies & Enterprises
- ManufacturingManufacturing
- MiningMining
- Other Services (except Public Administration)Other Services (except Public Administration)
- Professional, Scientific, & Technical ServicesProfessional, Scientific, & Technical Services
- Public AdministrationPublic Administration
- Real Estate Rental & LeasingReal Estate Rental & Leasing
- Retail TradeRetail Trade
- Transportation & WarehousingTransportation & Warehousing
- UtilitiesUtilities
- Wholesale TradeWholesale Trade
