CVE-2011-2883
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.
Citrix Access Gateway是一款通用的SSL VPN设备。 Citrix Access Gateway Enterprise Edition 8.1-67.7之前的8.1版本，9.0-70.5之前的9.0版本，9.1-96.4之前的9.1版本的nsepa.ocx中的NSEPA.NsepaCtrl.1 ActiveX控件通过检查证书的主体尝试验证已签名的DLLs，而不是验证签名。中间人攻击者可借助引用DLL（使用特制证书签名）的HTTP头数据执行任意代码。
Possible ATT&CK Techniques 1 AI
T1190 · Exploit Public-Facing Application
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I. Basic Information for CVE-2011-2883
Vulnerability Information
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Vulnerability Title
N/A
Source: CVE Program / CVE List V5
Vulnerability Description
The NSEPA.NsepaCtrl.1 ActiveX control in nsepa.ocx in Citrix Access Gateway Enterprise Edition 8.1 before 8.1-67.7, 9.0 before 9.0-70.5, and 9.1 before 9.1-96.4 attempts to validate signed DLLs by checking the certificate subject, not the signature, which allows man-in-the-middle attackers to execute arbitrary code via HTTP header data referencing a DLL that was signed with a crafted 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
Citrix Access Gateway nsepa.ocx NSEPA.NsepaCtrl.1 ActiveX控件任意代码执行漏洞
Source: CNNVD (China National Vulnerability Database)
Vulnerability Description
Citrix Access Gateway是一款通用的SSL VPN设备。 Citrix Access Gateway Enterprise Edition 8.1-67.7之前的8.1版本，9.0-70.5之前的9.0版本，9.1-96.4之前的9.1版本的nsepa.ocx中的NSEPA.NsepaCtrl.1 ActiveX控件通过检查证书的主体尝试验证已签名的DLLs，而不是验证签名。中间人攻击者可借助引用DLL（使用特制证书签名）的HTTP头数据执行任意代码。
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-2011-2883
| # | POC Description | Source Link | Shenlong Link |
|---|
AI-Generated POC
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Other References for CVE-2011-2883 (1)
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http://labs.idefense.com/intelligence/vulnerabilities/display.php?id=928 third-party-advisory x_refsource_IDEFENSE
Same Patch Batch · n/a · 2011-07-21 · 65 CVEs total
| CVE-2011-2279 | Oracle PeopleSoft Enterprise HRMS组件远程安全漏洞 | |
| CVE-2011-2296 | Oracle Solaris Kernel/SCTP子组件本地安全漏洞 | |
| CVE-2011-2299 | Oracle SPARC Enterprise M系列XSCF控制程序包未明漏洞 | |
| CVE-2011-2298 | Oracle Solaris KSSL子组件远程安全漏洞 | |
| CVE-2011-2297 | Oracle Solaris Cluster本地安全漏洞 | |
| CVE-2011-2284 | Oracle PeopleSoft Enterprise HRMS组件远程安全漏洞 | |
| CVE-2011-2283 | Oracle PeopleSoft Enterprise FMS组件远程安全漏洞 | |
| CVE-2011-2282 | Oracle PeopleSoft Enterprise PeopleTools组件远程安全漏洞 | |
| CVE-2011-2281 | Oracle PeopleSoft Enterprise HRMS组件远程安全漏洞 | |
| CVE-2011-2280 | Oracle PeopleSoft Enterprise PeopleTools组件远程安全漏洞 | |
| CVE-2011-2285 | Oracle Solaris Installer子组件本地安全漏洞 | |
| CVE-2011-2278 | Oracle PeopleSoft Products 安全漏洞 | |
| CVE-2011-2277 | Oracle PeopleSoft Products 安全漏洞 | |
| CVE-2011-2275 | Oracle PeopleSoft Products 安全漏洞 | |
| CVE-2011-2274 | Oracle PeopleSoft Products 安全漏洞 | |
| CVE-2011-2273 | Oracle Agile Core Technology组件信息泄露漏洞 | |
| CVE-2011-2272 | Oracle PeopleSoft Products 安全漏洞 | |
| CVE-2011-2267 | Oracle Fusion Middleware Outside In Technology组件Outside In Filters栈缓冲区溢出漏洞 | |
| CVE-2011-2264 | Oracle Fusion Middleware 安全漏洞 | |
| CVE-2011-2882 | Citrix Access Gateway nsepa.ocx NSEPA.NsepaCtrl.1 ActiveX控件栈缓冲区溢出漏洞 |
Showing top 20 of 65 CVEs. View all on vendor page → →
IV. Related Vulnerabilities
V. Comments for CVE-2011-2883
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