krbjack | Kerberos AP-REQ hijacking tool | Security Testing library

by almandin Python Version: 1.2.0 License: Non-SPDX

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

kandi X-RAY | krbjack Summary

krbjack is a Python library typically used in Testing, Security Testing applications. krbjack has no bugs, it has no vulnerabilities and it has low support. However krbjack build file is not available and it has a Non-SPDX License. You can install using 'pip install krbjack' or download it from GitHub, PyPI.

This tool can be used to abuse the dangerous ZONE_UPDATE_UNSECURE flag on DNS main domain zone in an Active Directory. This flag when set allows anyone unauthenticated to update, add and remove DNS records anonymously. It is quite common to see it during engagements as it is required to get some DHCP servers working with non-windows based systems, to get them update their own records. Even though this flag is extremely dangerous, I've never seen any tool to ease its exploitation. What I wanted to build is a mean to perform Man-in-the-Middle based on this dangerous flag, grab credentials and use them directly to own systems or the entire active directory services (though multiple tools can be used together to perform ntlm relay for example). The benefit from using this technique of man in the middle is that it goes through routers, as the "official" DNS records are poisonned. If proper routing is set (and if no firewall rule prevents it), someone on another broadcast domain can be targeted (unlike ARP poisoning which only works on you broadcast domain). Moreover I made the choice to perform fully functionnal AP_REQ hijacking to allow compromission of systems using kerberos instead of NetNTLM.

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Support

krbjack has a low active ecosystem.

It has 1 star(s) with 1 fork(s). There are 1 watchers for this library.

There were 1 major release(s) in the last 6 months.

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

It has a neutral sentiment in the developer community.

The latest version of krbjack is 1.2.0

Quality

krbjack has no bugs reported.

Security

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

License

krbjack has a Non-SPDX License.

Non-SPDX licenses can be open source with a non SPDX compliant license, or non open source licenses, and you need to review them closely before use.

Reuse

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

Deployable package is available in PyPI.

krbjack has no build file. You will be need to create the build yourself to build the component from source.

Installation instructions, examples and code snippets are available.

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krbjack Key Features

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krbjack Examples and Code Snippets

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Community Discussions

Trending Discussions on Security Testing

DAST security scaning of a IoT Nodemcu esp8266 LUA script www HTML server connected to camera and A/C relay

QUESTION

DAST security scaning of a IoT Nodemcu esp8266 LUA script www HTML server connected to camera and A/C relay

Asked 2021-Apr-08 at 01:04

I have not, but shall DAST* security test, out of curiosity, an IoT device; Nodemcu esp8266 www server I built. It's showing a HTML page (on a mobile phone for example) that allows to control and interact with a camera module and a A/C relay. With it I can for example show images captured in the camera I even think it has some image recognition built in, and I can switch on and off a relay for electrical current to a light bulb (110/220v A/C power)

Before I start pentest I though I better start thinking of what types of exploits one would be able to find and detect? Which sinister exploits I will be able to find, or rather ought be able to find given a proper pentest exercise? (And if I do not find exploits, my approach to the pentest of the Iot might be wrong)

I ponder it might be a totally pointless exercise since the esp8266 www server (or rather its LUA programming libraries) might not have any security built into it, so basically it is "open doors" and everything with it is unsafe ?

The test report might just conclude what I can foresee be that the the "user input needs to be sanitized"?

Anyone have any idea what such pentest of a generic IoT device generally reports? Maybe it is possible to crash or reset the IoT device? Buffer overruns, XXS, call own code ?

I might use ZAP or Burpsuite or similar DAST security test tool.

I could of course SAST test it instead, or too, but I think it will be hard to find a static code analyzer for the NodeMCU libraries and NUA scripting language easily ? I found some references here though: https://ieeexplore.ieee.org/abstract/document/8227299 but it seems to be a long read.

So if someone just have a short answer what to expect in a DAST scan/pentest , it would be much appreciated.

Stay safe and secure out there ! Zombieboy

...

ANSWER

Answered 2021-Apr-08 at 01:04

I do my vulnerability scanning with OpenVAS (I assume this is what you mean by pentesting?). I am not aware of any IOT focused Tools.

If your server is running on esp8266, i would imagine that there is no much room for authentication and encryption of http traffic, but correct me if i am wrong).

Vulnerability Scan results might show things like unencrypted http traffic, credentials transmitted in cleartext (if you have any credentials fields in the pages served by the web server) etc. Depending on if there is encryption, you might also see weak encryption findings.

You might get some false positives on your lua webserver reacting like other known webservers when exploits are applied. I have seen this kind of false positive specially on DoS vulnerabilities when a vulnerability scan is testing a vulnerability and the server becomes unresponsive. Depending on how invasive your vulnerability scanner is, you might get a lot of false positives for DoS on such a constrained platform.

Source https://stackoverflow.com/questions/66995125

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

Vulnerabilities

No vulnerabilities reported

Install krbjack

You do need to install the tool with root rights as it will need to be runnable by root to listen to privileged ports. Alternatively you can have fun with virtual envs. Alternatively you can download this repo and use poetry to install it.

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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