sslhook | Win32 DLL | SSH Utils library

by strobejb C++ Version: Current License: MIT

X-Ray Key Features Code Snippets Community Discussions(1)Vulnerabilities Install Support

kandi X-RAY | sslhook Summary

sslhook is a C++ library typically used in Utilities, SSH Utils applications. sslhook has no bugs, it has no vulnerabilities, it has a Permissive License and it has low support. You can download it from GitHub.

SSLHOOK is a Win32 DLL that allows hooking of the OpenSSL functions SSL_read and SSL_write. Version 1 is designed to work against statically-compiled versions of OpenSSL (rather than the DLL version). As such sslhook requires some preconfiguration, which requires knowledge of the relative addresses of the SSL_read and SSL_write functions in the target binary.

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sslhook has a low active ecosystem.

It has 38 star(s) with 16 fork(s). There are 3 watchers for this library.

It had no major release in the last 6 months.

sslhook has no issues reported. There are no pull requests.

It has a neutral sentiment in the developer community.

The latest version of sslhook is current.

Quality

sslhook has 0 bugs and 0 code smells.

Security

sslhook has no vulnerabilities reported, and its dependent libraries have no vulnerabilities reported.

sslhook code analysis shows 0 unresolved vulnerabilities.

There are 0 security hotspots that need review.

License

sslhook is licensed under the MIT License. This license is Permissive.

Permissive licenses have the least restrictions, and you can use them in most projects.

Reuse

sslhook releases are not available. You will need to build from source code and install.

Installation instructions are available. Examples and code snippets are not available.

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sslhook Key Features

No Key Features are available at this moment for sslhook.

sslhook Examples and Code Snippets

No Code Snippets are available at this moment for sslhook.

Community Discussions

Trending Discussions on sslhook

Access Violation when using struct

QUESTION

Access Violation when using struct

Asked 2020-Dec-01 at 14:29

I'm trying to hook OpenSSL's int SSL_connect(SSL *s) method. OpenSSL 1.0.2l version.

Here's the source code:

SSL_connect

SSL structure

SSL_SESSION structure

GOAL:

Printing out any SSL_SESSION member (like ssl_version or master_key)

THE PROBLEM:

I get Access Violation Exception when trying to access the SSL *s parameter inside my hook method. Is there anything wrong with my structure? I don't think I must map all of the members of SSL and SSL_SESSION, because I found that SSLHook library doesn't do this - link

I'm able to inject the dll successfully, it does work when I'm not trying to access the parameter.

THE CODE:

...

ANSWER

Answered 2020-Dec-01 at 14:29

I don't think I must map all of the members of SSL and SSL_SESSION, because I found that SSLHook library doesn't do this

If you take a closer look you see, that they do not map everything but they keep the member order and they duplicate all members up to the "point" in the struct that is relevant for them. Ignoring the original padding in struct injections is almost always very critical and in general undefined behavior I guess, so you can be lucky to obtain a quite deterministic crash here :) So you can either provide the full struct or at least a reduced struct with the according final padding "before" your session member pointer.

Source https://stackoverflow.com/questions/65092131

Community Discussions, Code Snippets contain sources that include Stack Exchange Network

Vulnerabilities

No vulnerabilities reported

Install sslhook

Running SSLHOOK on Win32 requires the following registry settings:. HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\Windows NT\CurrentVersion\Windows AppInit_DLLs: <full-path-to-sslhook.dll> LoadAppInit_DLLs: 0x1. HKEY_LOCAL_MACHINE\SOFTWARE\Wow6432Node\Microsoft\Windows NT\CurrentVersion\Windows AppInit_DLLs: <full-path-to-sslhook.dll> LoadAppInit_DLLs: 0x1.

Support

For any new features, suggestions and bugs create an issue on GitHub. If you have any questions check and ask questions on community page Stack Overflow .

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