~/Bitcoin-Vulnerabilities$ ./attacksafe vulnerability_to_cross-site_request_forgery_attack_csrf.sage
Cross-site request forgery CSRF vulnerability: btctxstore had a vulnerability that could allow CSRF attacks on applications using the library. The attacker could force the user to perform unwanted actions, such as sending bitcoins or changing account settings. This issue was addressed by adding CSRF protection measures, including the use of tokens and verification of the origin of requests.
Vulnerability SameSite=None:
In 2020, security researcher James Bell discovered a vulnerability related to site cookies that were not configured with the SameSite=None flag. This allowed attackers to perform cross-site request forgery (CSRF) attacks, which could lead to the theft of mnemonic codes and private keys.
Request Forgery (CSRF) Attack Vulnerability: In 2021, web wallets created using Bitwasp were discovered to be susceptible to a CSRF attack. An attacker could exploit this vulnerability to make a transaction on behalf of a user without the users knowledge.
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~/Bitcoin-Vulnerabilities$ ./attacksafe vulnerability_to_insufficient_input_validation.sage
Vulnerability in the btctxstore.StoreContext function Insufficient input validation
One of the librarys main drawbacks was its lack of input validation. For example, the btctxstore.StoreContext function did not check the file being passed in to see if it existed before attempting to write to it. This could result in a file being created in an undesired location or overwriting important data.
Additionally, the btctxstore.LoadContext function did not check the integrity of the context file and did not issue any warnings when attempting to load a corrupt or incomplete file. As a result, the user could experience unpredictable behavior of the application using the library.
Weaknesses in Error Handling
The library lacked detailed error handling, which could lead to difficulties in diagnosing and troubleshooting problems. For example, the btctxstore.StoreContext function did not return any error information when writing a file. As a result, the user could experience an application freeze or an inability to save context changes.
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~/Bitcoin-Vulnerabilities$ ./attacksafe vulnerability_cve-2021-37492.sage
Vulnerability CVE-2021-37492
In 2021, a serious vulnerability was discovered, identified as CVE-2021-37492. This vulnerability allowed an attacker to execute arbitrary code on a victims system under certain conditions. The problem was insufficient input validation when deserializing pandas objects.
The vulnerability CVE-2021-37492 has been fixed in pandas version 1.3.3. The developers strongly recommended that all users update their pandas installations to this or a later version.
Unfortunately, this was not the only case of critical vulnerabilities being discovered in pandas. In 2019, a vulnerability (CVE-2019-19785) was identified that allowed a remote attacker to execute arbitrary code on the victim’s system. This issue was also due to insufficient input validation during deserialization.
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~/Bitcoin-Vulnerabilities$ ./attacksafe outdated_algorithm_vulnerability_cve-2018-1000888.sage
Vulnerability in using an outdated version of the BitcoinJ library (CVE-2018-1000888):
In 2018, a vulnerability was discovered in the dependencies of the Bitcoin Spring Boot Starter library. This vulnerability was due to the use of an outdated version of the BitcoinJ library, which contained a dangerous bug that allowed attackers to execute code remotely (RCE). This vulnerability affected all versions of the Bitcoin Spring Boot Starter library prior to 2.0.3. It is recommended to update the library to the latest version to eliminate this threat.
Incomplete support or bugs in algorithms
Sometimes a library may not include a complete set or correctly implement certain algorithms, which creates potential risks. For example, if it does not properly handle outdated or atypical data, it can lead to errors or even failure.
Outdated Algorithms: The use of outdated or weak cryptographic algorithms can make the protected data vulnerable. It is important that libraries are constantly updated, eliminating algorithms that have been found to be vulnerable or outdated.
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~/Bitcoin-Vulnerabilities$ ./attacksafe insufficient_authentication_vulnerability_cve-2020-12345.sage
A vulnerability in the processing of the sequence number value in library transactions.
Several years ago, in 2017, the NBitcoin library, a popular library for working with Bitcoin transactions on the .NET platform, was discovered to have several serious errors and vulnerabilities that could potentially lead to significant financial losses for users.
One of the most critical vulnerabilities discovered in NBitcoin allowed attackers to manipulate transaction values, which could lead to users losing bitcoins. This vulnerability was related to the way the library handled “sequence number” values in transactions. “Sequence number” is a value that can be used to add additional conditions to a transaction, for example, creating a temporary lock on the transaction. The vulnerability allowed an attacker to change the “sequence number” in an already created transaction, which could lead to unintentional execution or cancellation of the transaction.
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~/Bitcoin-Vulnerabilities$ ./attacksafe vulnerability_clickjacking.sage
Clickjacking Vulnerability: In the same article, James Bell also discovered a clickjacking vulnerability related to incorrect content security policy (CSP) settings. This allowed attackers to inject pop-ups and override the library interface, which could lead to the theft of mnemonic codes and private keys.
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~/Bitcoin-Vulnerabilities$ ./attacksafe vulnerability_xss_cross-site_scripting.sage
API request processing vulnerability: In 2019, a vulnerability was discovered in the btcpay library API, which could allow an attacker to gain access to confidential user information. The problem was that when processing requests through the API, the library did not always check permissions properly. This could allow an attacker to gain access to information that should have been protected.
Unauthorized access to user data: In 2022, a serious bug was discovered that made user data stored in Bitauth IDE vulnerable to unauthorized access. The issue was caused by insufficient API security, which allowed attackers to access sensitive information such as private keys and smart contract code. This incident highlighted the importance of securely storing sensitive user data.
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~/Bitcoin-Vulnerabilities$ ./attacksafe vulnerability_when_processing_requests_via_api.sage
API request processing vulnerability: In 2019, a vulnerability was discovered in the btcpay library API, which could allow an attacker to gain access to confidential user information. The problem was that when processing requests through the API, the library did not always check permissions properly. This could allow an attacker to gain access to information that should have been protected.
Unauthorized access to user data: In 2022, a serious bug was discovered that made user data stored in Bitauth IDE vulnerable to unauthorized access. The issue was caused by insufficient API security, which allowed attackers to access sensitive information such as private keys and smart contract code. This incident highlighted the importance of securely storing sensitive user data.
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~/Bitcoin-Vulnerabilities$ ./attacksafe double_spending_vulnerability_double-spending.sage
Double-spending vulnerability: In 2018, it was discovered that the Bitwasp library does not check for double-spending when creating transactions. This allowed attackers to spend the same bitcoins several times, which could lead to financial losses for users.
Double Spending Vulnerability (CVE-2019-12128): A vulnerability was discovered in 2019 that allows attackers to double spend Bitcoin. The problem was due to the fact that the library did not check the existence of a transaction in the blockchain before signing it. This vulnerability was fixed in version 3.3.4.
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~/Bitcoin-Vulnerabilities$ ./attacksafe transaction_processing_error_vulnerability_cve-2018-17145.sage
Transaction processing error vulnerability CVE-2018-17145
Also in August 2018, another vulnerability was discovered related to transaction processing in btcd. The problem was that the SIGHASH_ANYONECANPAY flag was not taken into account when checking the transaction signature, which could lead to incorrect transaction processing and potential fraud.
This issue has been fixed in btcd 0.16.3 and all users are advised to update to the latest version of the library.
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