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CVE-2011-1775

Quick assessment

Affected
n/a n/a
Exploitation
No confirmed in-the-wild exploitation; assess based on exposure
Recommended action
Check the vendor advisory and references for a fixed version. If immediate upgrade is impossible, restrict exposure and increase monitoring.

TigerVNC 1.1beta1版本的vncviewer组件中存在安全绕过漏洞，由于common/rfb/CSecurityTLS.cxx中的CSecurityTLS::processMsg函数不能正确验证服务器X.509证书。中间人攻击者可以借助任意证书欺骗TLS VNC服务器。

AI Predicted 5.9 Difficulty: Moderate EPSS 1.29% · P69

Possible ATT&CK Techniques 1 AI

T1557 · Adversary-in-the-Middle
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I. Basic Information for CVE-2011-1775

Vulnerability Information
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Vulnerability Title
N/A
Source: CVE Program / CVE List V5
Vulnerability Description
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 man-in-the-middle attackers to spoof a TLS VNC server via an arbitrary certificate.
Source: CVE Program / CVE List V5
CVSS Information
N/A
Source: CVE Program / CVE List V5
Vulnerability Type
N/A
Source: CVE Program / CVE List V5
Vulnerability Title
TigerVNC证书验证安全绕过漏洞
Source: CNNVD (China National Vulnerability Database)
Vulnerability Description
TigerVNC 1.1beta1版本的vncviewer组件中存在安全绕过漏洞，由于common/rfb/CSecurityTLS.cxx中的CSecurityTLS::processMsg函数不能正确验证服务器X.509证书。中间人攻击者可以借助任意证书欺骗TLS VNC服务器。
Source: CNNVD (China National Vulnerability Database)
CVSS Information
N/A
Source: CNNVD (China National Vulnerability Database)
Vulnerability Type
N/A
Source: CNNVD (China National Vulnerability Database)

Affected Products

Vendor Product Affected Versions CPE Subscribe
- n/a n/a -

II. Public POCs for CVE-2011-1775

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III. Intelligence Information for CVE-2011-1775

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Vendor Advisories for CVE-2011-1775 (4)

Mailing List Discussions for CVE-2011-1775 (6)

Same Patch Batch · n/a · 2011-05-26 · 14 CVEs total

CVE-2010-2246 Daniel Friesel feh '--wget-timestamp'远程代码执行漏洞
CVE-2011-1758 Fedoraproject System Security Services Daemon Automatic Ticket Renewal Credentials Cache文件
CVE-2010-4251 Linux kernel net/core/sock.c套接字实现拒绝服务漏洞
CVE-2010-4805 Linux kernel net/core/sock.c套接字实现拒绝服务漏洞
CVE-2010-4806 IBM Web Content Manager程序编写工具权限许可和访问控制漏洞
CVE-2010-4807 IBM Web Content Manager无限递归查询漏洞
CVE-2011-1581 Linux kernel drivers/net/bonding/bond_main.c bond_select_queue函数输入验证错误漏洞
CVE-2011-1801 Google Chrome Popup Blocker安全绕过漏洞
CVE-2011-1804 WebKit 输入验证错误漏洞
CVE-2011-1806 Google Chrome GPU命令缓冲区内存破坏漏洞
CVE-2011-1807 Google Chrome Blob处理越界远程代码执行漏洞
CVE-2011-2172 IBM WebSphere Portal Search Center跨站脚本攻击漏洞
CVE-2011-2173 IBM WebSphere Portal OutputMediator对象实现拒绝服务漏洞

IV. Related Vulnerabilities

Same product: n/a
Same vendor: n/a

V. Comments for CVE-2011-1775

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