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Black Hat Ethical Hacking
Critical Cisco SD-WAN, HyperFlex Bugs Threaten Corporate Networks

https://www.blackhatethicalhacking.com/wp-content/uploads/2017/11/black-hat-locks-and-electronics.jpg Critical Cisco SD-WAN, HyperFlex Bugs Threaten Corporate NetworksPost Views: 57
Reading Time: 1 Minute
Cisco has addressed two critical security vulnerabilities in the SD-WAN vManage Software, one of which could allow an unauthenticated attacker to carry out remote code execution (RCE) on corporate networks or steal information.
The networking giant has rolled out patches for remote code-execution and command-injection security holes that could give attackers keys to the kingdom.
The networking giant also disclosed a denial-of-service issue in vManage; and locally exploitable bugs that would allow an authenticated attacker to escalate privileges or gain unauthorized access to applications.

Separately, Cisco patched two vulnerabilities in the Cisco HyperFlex HX platform, one of them rated critical. Critical vManage Security BugsvManage is a centralized network management system that provides a GUI interface to easily monitor, configure and maintain all devices and links in the overlay SD-WAN. According to Cisco’s Wednesday advisory, there are five security holes in the software, the first four only exploitable if the platform is running in cluster mode:

* CVE-2021-1468: Critical Unauthorized Message-Processing Vulnerability (RCE)
* CVE-2021-1505: Critical Privilege-Escalation Vulnerability
* CVE-2021-1508: High-Severity Unauthorized-Access Vulnerability
* CVE-2021-1506: High-Severity Unauthorized Services-Access Vulnerability
* CVE-2021-1275: High-Severity Denial-of-Service Vulnerability
See Also: Hundreds of Millions of Dell Users at Risk from Kernel-Privilege Bugs
The issue tracked as CVE-2021-1468 is the most severe of the five, carrying a CVSS vulnerability-severity score of 9.8 out of 10. It exists in messaging service used by vManage, and is due to improper authentication checks on user-supplied input to an application messaging service, according to Cisco.

Unauthenticated, remote adversaries could mount a cyberattack by submitting crafted input to the service. That would allow them to call privileged actions within the affected system, including creating new administrative level user accounts, the advisory said.

Meanwhile, the local privilege-escalation (LPE) bug tracked as CVE-2021-1505 has a CVSS score of 9.1. It exists in the web-based management interface of vManage and would allow an authenticated, remote attacker to bypass authorization checking to gain elevated privileges within the system.

Similarly, CVE-2021-1508, which has a CVSS score of 8.1, is an LPE bug that can also be found in the web-based management interface. It would also allow an authenticated, remote attacker to bypass authorization checking in order to gain access to forbidden applications, make application modifications and also gain elevated privileges.

Both local bugs exist “because the affected software does not perform authorization checks on certain operations,” according to Cisco.

A third locally exploitable bug, CVE-2021-1506, carries a CVSS score of 7.2. It allows an authenticated, remote attacker to gain unauthorized access to services within an affected system, because the system doesn’t perform authorization checks on service access.

And in all three local cases, an attacker could trigger exploits by sending crafted requests to the affected system.
See Also: Offensive Security Tool: SSHPry2.0
And finally, the CVE-2021-1275 DoS flaw (CVSS score 7.5) exists in a vManage API. Attackers can send a large amount of API requests to a target system to tie [...]

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Black Hat Ethical Hacking Critical Cisco SD-WAN, HyperFlex Bugs Threaten Corporate Networks https://www.blackhatethicalhacking.com/wp-content/uploads/2017/11/black-hat-locks-and-electronics.jpg Critical Cisco SD-WAN, HyperFlex Bugs Threaten Corporate NetworksPost…
it up and prevent it from functioning properly.

“The vulnerability is due to insufficient handling of API requests to the affected system,” according to Cisco. Cisco HyperFlex HX Command-Injection BugsThe HyperFlex HX software is used to manage hybrid IT environments by converging the oversight of the various applications that enterprises house within data centers – across both traditional and cloud-native/containerized applications.

Cisco said Wednesday that multiple vulnerabilities in the platform’s web-based management interface could allow an unauthenticated, remote attacker to perform command-injection attacks against an affected device.

Cisco has patched two security bugs in HyperFlex HX in total:

* CVE-2021-1497: Critical Installer Virtual Machine Command-Injection Vulnerability
* CVE-2021-1498: High-Severity Data Platform Command-Injection Vulnerability

The first is a critical flaw with a 9.8 CVSS rating,

“This vulnerability is due to insufficient validation of user-supplied input,” according to Cisco. “A successful exploit could allow the attacker to execute arbitrary commands on an affected device as the root user.” See Also: Hacking Stories: Xbox UndergroundThe second bug rates 7.2 on the CVSS scale, and is due to insufficient validation of user-supplied input, according to Cisco, which added, “A successful exploit could allow the attacker to execute arbitrary commands on an affected device as the tomcat8 user.”

Both flaws can be exploited by sending a crafted request to the web-based management interface.

These are just the latest bugs addressed by the tech behemoth this year. In February, Cisco addressed a critical vulnerability in its intersite policy manager software for the Nexus 3000 Series switches and Nexus 9000 Series switches that could allow a remote attacker to bypass authentication. And in January, it killed a high-severity flaw in its smart Wi-Fi solution for retailers that could allow a remote attacker to alter the password of any account user on affected systems.
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The post Critical Cisco SD-WAN, HyperFlex Bugs Threaten Corporate Networks first appeared on Black Hat Et[...]

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hacking: security in practice
Are the certs really worth it?

Are the certs like oscp, ceh, csa or other similar really worth the price?
Lets say i get the oscp cert for $999, am i really gonna get paid more if i got the cert?
Is it easier to get a job with cert?

People who have got some security certs, was it worth the price? Have the certs helped you advance in your career?

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Hacking on Medium
VulnNet: Internal TryHackeMe

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Hello Guys. We would be attacking the VulnNet:Internal, Yet another amazing box from TheCyb3rW0lf, This machine test and sharpen’s your…

Continue reading on Medium »
How I found my first valid Bug!

In the name of Allah, i begin.Continue reading on Medium »
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Black Hat Ethical Hacking
Offensive Security Tool: EyeWitness

https://www.blackhatethicalhacking.com/wp-content/uploads/2017/11/black-hat-locks-and-electronics.jpg Offensive Security Tool: EyeWitnessPost Views: 17 https://www.blackhatethicalhacking.com/wp-content/uploads/2020/11/BECOME-A-PATRON-AND-UNLOCK-EXCLUSIVE-VIDEOS-8-1-300x120.png Reading Time: 3 Minutes
Offensive Security Tool: EyeWitness GitHub Link
EyeWitness

EyeWitness by Chris Truncer, is designed to take screenshots of websites provide some server header info, and identify default credentials if known.

EyeWitness is designed to run on Kali Linux. It will auto detect the file you give it with the -f flag as either being a text file with URLs on each new line, nmap xml output, or nessus xml output. The –timeout flag is completely optional, and lets you provide the max time to wait when trying to render and screenshot a web page.

The primary goal of EyeWitness is taking screenshots of websites! When using –web, EyeWitness will call selenium, which uses the actual browser (IceWeasel or Firefox) installed on your system, to take screenshots from the terminal. You won’t see s browser pop-up, but it’s running in the background, and taking screenshots of the URLs that you provided.

A complete usage guide which documents EyeWitness features and its typical use cases is available here – https://www.christophertruncer.com/eyewitness-2-0-release-and-user-guide/
Windows

FortyNorth Security has created a Windows client (thanks to the massive help of Matt Grandy (@Matt_Grandy_) with the stability fixes). All you need to do is build it locally (or check the releases), and then provide a path to a file containing the URLs you want scanned! EyeWitness will generate the report within your “AppData\Roaming” directory. The latest version of the C# EyeWitness supports parsing and taking screenshots of Internet Explorer and Chrome bookmarks without having to supply a list of URLs. This version is also small enough to be delivered through Cobalt Strike’s execute-assembly.
Setup:

1. Navigate into the CS directory
2. Load EyeWitness.sln into Visual Studio
3. Go to Build at the top and then Build Solution if no modifications are wanted
Usage:
EyeWitness.exe --help
EyeWitness.exe --bookmarks
EyeWitness.exe -f C:\Path\to\urls.txt
EyeWitness.exe --file C:\Path\to\urls.txt --delay [timeout in seconds] --compress
Linux
Supported Linux Distros:

* Kali Linux
* Debian 7+ (at least stable, looking into testing) (Thanks to @themightyshiv)

E-Mail: EyeWitness [@] christophertruncer [dot] com
Setup:

1. Navigate into the Python/setup directory
2. Run the setup.sh script
Usage:
./EyeWitness.py -f filename --timeout optionaltimeout Examples:
./EyeWitness -f urls.txt --web

./EyeWitness -x urls.xml --timeout 8

./EyeWitness.py -f urls.txt --web --proxy-ip 127.0.0.1 --proxy-port 8080 --proxy-type socks5 --timeout 120
Proxy Usage

The best guide for proxying EyeWitness through a socks proxy was made by @raikia and is available here – https://github.com/FortyNorthSecurity/EyeWitness/issues/458 Docker

Now you can execute EyeWitness in a docker container and prevent you from install unnecessary dependencies in your host machine.

Note: execute docker run with the folder path in the host which hold your results (/path/to/results)
Note2: in case you want to scan urls from a file, make sure you put it in the volume folder (if you put urls.txt in /path/to/results, then the argument should be -f /tmp/EyeWitness/urls.txt) Usage
docker build --build-arg user=$USER --tag eyewitness --file ./Python/Dockerfile .
docker run \
--rm \
-it \
-v /path/to/results:/tmp/EyeWitness \
eyewitness \
EyeWitness_flags_and_input
Example #1 – headless capturing
docker run \
--rm \
-it \
[...]