CherryBomb1991

GypsyRoseLee

Types of hacking?
We can segregate hacking into different categories, based on what being hacked. Here is a set of examples-

1-Website Hacking- Hacking a website means taking unauthorized control over a web server and its associated software such as databases and other interfaces.

2-Network Hacking-Hacking a network means gathering information about a network by using tool like Telnet, Nslookup, Ping, Tracert, Netstat etc with the intent to harm the network system and hamper its operation.

3-Email Hacking-It includes getting unauthorized access on an Email account and using it without taking the permission of the owner.

4-Ethical Hacking-It involves finding weakness in a computer or network system for testing purpose and finally getting them fixed.

5-Password Hacking-This is the process of recovering secret password from data that has been stored in or transmitted by a computer system.

6-Computer Hacking-This is the process of stealing computer ID & Passwords by applying hacking methods and getting unauthorized access to a computer system.

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GypsyRoseLee

An accountant and a security expert walk into a bar… SOC2 is no joke.

Whether you're a publicly held or private company, you are probably considering going through a Service Organization Controls (SOC) audit. For publicly held companies, these reports are required by the Securities and Exchange Commission (SEC) and executed by a Certified Public Accountant (CPA). However, customers often ask for SOC2 reports as part of their vendor due diligence process.

Out of the three types of SOC reports, SOC2 is the standard to successfully pass regulatory requirements and signals high security and resilience within the organization — and is based on the American Institute of Certified Public Accountants (AICPA) attestation requirements. The purpose of this report is to evaluate an organization's information systems relevant to security, availability, processing integrity, confidentiality, and privacy — over a period of time (roughly six to twelve months).

As part of a SOC2 audit, it is necessary to conduct security checks across the company's SaaS stack that will look for misconfigured settings such as detection and monitoring to ensure continued effectiveness of information security controls and prevent unauthorized/ inappropriate access to physical and digital assets and locations.

If you're beginning or on a SOC2 audit journey, then an SSPM (SaaS Security Posture Management) solution can streamline the process and shorten the time it takes to pass a SOC2 audit successfully, fully covering your SaaS Security posture.

Learn how to streamline your organization's SOC2 compliance

What are the AICPA Trust Services Criteria (TSC)?

When external auditors engage in a SOC 2 audit, they need to compare what you're doing to a long list of established requirements from AICPA TSC. The "Common Controls" fall into five groups:

Security - Includes sub controls of the Logical and Physical Access (CC6)
Availability - Includes sub controls of the System Operations (CC7)

Processing integrity: Includes sub controls of the System Operations (CC7)
Confidentiality: Includes sub controls of the Logical and Physical Access (CC6)
Privacy - Includes sub controls of the Monitoring Activities (CC4)

Within each common control are a set of sub controls that turn the overarching standard into actionable tasks.

Passing a SOC 2 audit takes a lot of time, effort, and documentation. During a SOC2 audit, you not only need to show that your controls work during the audit period, but you also need to show that you have the ability to continuously monitor your security.

Going through the entire TSC framework is too long for a blog post. However, a quick look into a couple of controls of Logical and Physical Access (CC6) and System Operations (CC7) gives you an idea of what some of the controls look like and how you can utilize an SSPM to ease the SOC2 audit.

Get a 15-minute demo of how an SSPM can help your SOC 2 TSC audit

Logical and Physical Access Controls

This section sets out the types of controls needed to prevent unauthorized or inappropriate access to physical and digital assets and locations. Managing user access permissions, authentication, and authorization across the SaaS estate poses many challenges. In fact, as you look to secure your cloud apps, the distributed nature of users and managing the different access policies becomes increasingly challenging.

Under CC6.1 control, entities need to:

Identify, classify, and manage information assets
Restrict & manage user access
Consider network segmentation
Register, authorize, and document new infrastructure
Supplement security by encrypting data-at-rest
Protect encryption keys

Example

The department that utilizes a SaaS app is often the one that purchases and implements it. Marketing might implement a SaaS solution for monitoring leads while sales implements the CRM. Meanwhile, each application has its own set of access capabilities and configurations. However, these SaaS owners may not be trained in security or able to continuously monitor the app's security settings so the security team loses visibility. At the same time, the security team may not know the inner workings of the SaaS like the owner so they may not understand more complex cases which could lead to a security breach.

An SSPM solution, maps out all the user permissions, encryption, certificates and all security configurations available for each SaaS app. In addition to the visibility, the SSPM solution helps correct any misconfiguration in these areas, taking into consideration each SaaS app's unique features and usability.

In CC.6.2 control, entities need to:

Create asset access credentiations based on authorization from the system's asset owner or authorized custodian
Establish processes for removing credential access when the user no longer requires access
Periodically review access for unnecessary and inappropriate individuals with credentials

Example

Permission drifts occur when a user has certain permissions as part of a group membership, but then gets assigned a specific permission that is more privileged than what the group has. Over time many users get extra permissions. This undermines the idea of provisioning using groups.

Classic deprovisioning issues, an SSPM solution can spot inactive users and help organizations to quickly remediate, or at the very least, alert the security team to the issue.

Under CC.6.3 control, entities need to:

Establish processes for creating, modifying or removing access to protected information and assets
Use role-based access controls (RBAC)
Periodically review access roles and access rules

Example

You might be managing 50,000 users across five SaaS applications, meaning the security team needs to manage a total of 250,000 identities. Meanwhile, each SaaS has a different way to define identities, view them, and secure identities. Adding to the risk, SaaS applications don't always integrate with each other which means users can find themselves with different privileges across different systems. This then leads to unnecessary privileges that can create a potential security risk.

An SSPM solution allows visibility into user privileges and sensitive permission across all connected SaaS apps, highlighting the deviation from permission groups and profiles.

System Operations

This section focuses on detection and monitoring to ensure continued effectiveness of information security controls across systems and networks, including SaaS apps. The diversity of SaaS apps and potential for misconfigurations makes meeting these requirements challenging.

In CC7.1 control, entities need to:

Define configuration standards
Monitor infrastructure and software for noncompliance with standards
Establish change-detection mechanisms to aler personnel to unauthorized modification for critical system, configuration, or content files
Establish procedures for detecting the introduction of known or unknown components
Conduct periodic vulnerability scans to detect potential vulnerabilities or misconfigurations

It is unrealistic to expect from the security team to define a "configuration standard" that complies with SOC2 without comparing against a built-in knowledge base of all relevant SaaS misconfigurations and to continuously comply with SOC2 without using an SSPM solution.

Get a 15-minute demo to see how an SSPM solution automates your SaaS security posture for SOC2 and other standards.

There are many goodware and malware developed in pascal, and we will see that the binary generated by the pascal compilers is fascinating, not only because the small and clean generated binaries, or the clarity of the pascal code, but also the good performance. In Linux we have Lazarus which is a good free IDE like Delphi and Kylix the free pascal IDE for windows.

The program:

program strtest;

var
cstr: array[0..10] of char;
s, s2: ShortString;

begin
cstr := 'hello world';
s := cstr;
s2 := 'test';

WriteLn(cstr + ' ' + s + ' ' + s2);
end.

We are going to compile it with freepascal and lazarus, and just the binary size differs a lot:

lazarus 242,176 btytes 845 functions
freepascal 32,256 bytes 233 functions
turbopascal 2,928 bytes 80 functions (wow)

And surprisingly turbopascal binaries are extremely light.
Lets start with lazarus:

Logically it imports from user32.dll some display functions, it also import the kernel32.dll functions and suspiciously the string operations of oleaut32.dll

And our starting point is a function called entry that calls the console initialization and retrieve some console configurations, and then start a labyrinth of function calls.

On functions 10000e8e0 there is the function that calls the main function.

I named execute_param2 because the second param is a function pointer that is gonna be executed without parameters, it sounds like main calling typical strategy.
And here we are, it's clearly the user code pascal main function.

What it seems is that function 100001800 returns an string object, then is called its constructor to initialize the string, then the string is passed to other functions that prints it to the screen.

This function executes the method 0x1c0 of the object until the byte 0x89 is a null byte.
What the hell is doing here?
First of all let's create the function main:

Simply right button create function:

After a bit of work on Ghidra here we have the main:

Note that the struct member so high like 0x1b0 are not created by default, we should import a .h file with an struct or class definition, and locate the constructor just on that position.

The mysterious function was printing byte a byte until null byte, the algorithm the compiler implemented in asm is not as optimized as turbopascal's.

In Windbg we can see the string object in eax after being created but before being initialized:

Just before executing the print function, the RCX parameter is the string object and it still identical:

Let's see the constructor code.
The constructor address can be guessed on static walking the reverse-cross-references to main, but I located it in debugging it in dynamic analysis.

The constructor reads only a pointer stored on the string object on the position 0x98.

And we have that the pointer at 0x98 is compared with the address of the literal, so now we know that this pointer points to the string.
The sentence *string_x98 = literal confirms it, and there is not memory copy, it only points reusing the literal.

Freepascal

The starting labyrinth is bigger than Lazarus so I had to begin the maze from the end, searching the string "hello world" and then finding the string references:

There are two ways to follow the references in Ghidra, one is [ctrl] + [shift] + F but there is other trick which is simply clicking the green references texts on the disassembly.

At the beginning I doubted and put the name possible_main, but it's clearly the pascal user code main function.

The char array initialization Is converted by freepascal compiler to an runtime initialization using mov instructions.

Reducing the coverage on dynamic we arrive to the writeln function:

EAX helds a pointer to a struct, and the member 0x24 performs the printing. In this cases the function can be tracked easily in dynamic executing the sample.

And lands at 0x004059b0 where we see the WriteFile, the stdout descriptor, the text and the size supplied by parameter.

there is an interesting logic of what happens if WriteFile() couldn't write all the bytes, but this is other scope.
Lets see how this functions is called and how text and size are supplied to figure out the string object.

EBX helds the string object and there are two pointers, a pointer to the string on 0x18 and the length in 0x18, lets verify it on windbg.

And here we have the string object, 0x0000001e is the length, and 0x001de8a68 is the pointer.

Thanks @capi_x for the pascal samples.

CherryBomb1991

Saturday, January 20, 2024

TYPES OF HACKING

How SSPM Simplifies Your SOC2 SaaS Security Posture Audit

What are the AICPA Trust Services Criteria (TSC)?

Logical and Physical Access Controls

Example

Example

Example

System Operations

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Reversing Pascal String Object

Freepascal

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