Improper Implementation of Interface

Lines of code Vulnerability details Impact The improper implementation of interfaces can cause unexpected behavior in the contract and lead to an unwanted state of the contract. This can potentially affect several functions. Description The DNSSECImpl contract contains two internal functions,...

HexUtils.hexStringToBytes32() and HexUtils.hexToAddress() may return incorrect results

Lines of code Vulnerability details Impact The HexUtils.hexStringToBytes32 and HexUtils.hexToAddress may return incorrect results if the input data provided is not in a standard format. This could cause the contract to behave abnormally in some scenarios or be exploited for malicious purposes...

Insecure Ownership Management in DNSSECImpl.sol

Lines of code Vulnerability details Impact This finding highlights a potential security risk related to the lack of safeguards when changing ownership in the DNSSECImpl.sol contract. As it stands, the current implementation allows for the owner to be set to address0, which could result in the los...

Malicious users can exploit NameEncoder vulnerability to forge arbitrary names

Lines of code Vulnerability details Impact A malicious user can spoof NameEncoder.dnsEncodeName by forging a name to impersonate any other name, which can lead to faulty contract logic or even theft of someone else's name. Proof of Concept The function NameEncoder.dnsEncodeName is used to convert...

Vulnerability in Keccak Function Used for Equality Check in equals() Function.

Lines of code Vulnerability details Impact The BytesUtils library is using Keccak function to check for equality in the equals function. This is a security concern since the Keccak function is vulnerable to hash collisions, which could allow a malicious user to create an input that matches a...

OffchainDNSResolver Contract Missing onlyOwner Modifier in Constructor Can Lead to DNS Hijacking Attacks

Lines of code Vulnerability details Impact The OffchainDNSResolver contract has a security vulnerability where it doesn't have a safeguard called the onlyOwner modifier in its constructor, this means that anyone can deploy the contract. This could allow a bad actor to create a version of the...

Incorrect implementation of RecordParser.readKeyValue()

Lines of code Vulnerability details Impact RecordParser.readKeyValue returns a wrong value if the terminator not found. This is a fundamental library and any contract using it may experience unexpected errors and problems due to this bug. Proof of Concept The implementation logic of...

BytesUtils.substring accepts out of bound offset input

Lines of code Vulnerability details Impact The BytesUtils.substring function accepts out of bound offset value and returns a valid response without reverting. function substring bytes memory self, uint256 offset, uint256 len internal pure returns bytes memory requireoffset + len = self.length;...

Potential SHA256 Digest Vulnerability in Solidity Contract

Lines of code Vulnerability details Impact This vulnerability enables the hacker to pass malicious data to the "verify" function, which in turn uses the said data as input for the sha256 function, this can lead to unexpected or incorrect output, potentially resulting in unauthorized access to...

Upgraded Q -> 2 from #623 [1682589089611]

Judge has assessed an item in Issue 623 as 2 risk. The relevant finding follows: L‑05 Stuck dust in SafEth contract for division When stake in the contract SafEth some WEIs could be stuck in the contract because the equation uint256 ethAmount = msg.value weight / totalWeight;, in example: ethAmou...

Unvalidated External Library Usage in RSASHA256Algorithm

Lines of code Vulnerability details Impact A hacker could exploit this vulnerability to inject malicious code into the contract, potentially allowing them to steal user funds or take control of the contract. Proof of Concept To demonstrate the attack vector, lets deploy a malicious version of the...

verifySignatureWithKey - RRSIG RR's Signer's Name is never checked if it matches owner name

Lines of code Vulnerability details Impact According to RFC 4035 and as mentioned in the comments in function "verifySignatureWithKey" , the Signer's name should also be checked if it matches the owner name. If the Signer's Name field of an RRSIG record does not match the owner name of a DNSKEY...

Timestamp manipulation affects DNSSEC records on contracts/dnssec-oracle/DNSSECImpl.sol

Lines of code Vulnerability details Impact timestamp parameter to validate DNSSEC records. The timestamp parameter is passed as an argument to the verifyRRSIG function, which is responsible for verifying that the DNSSEC record is valid at a specific point in time. If the timestamp parameter can b...

CVE-2023-30629

Vyper is a Pythonic Smart Contract Language for the ethereum virtual machine. In versions 0.3.1 through 0.3.7, the Vyper compiler generates the wrong bytecode. Any contract that uses the rawcall with revertonfailure=False and maxoutsize=0 receives the wrong response from rawcall. Depending on the...

Design/Logic Flaw

Vyper is a Pythonic Smart Contract Language for the ethereum virtual machine. In versions 0.3.1 through 0.3.7, the Vyper compiler generates the wrong bytecode. Any contract that uses the rawcall with revertonfailure=False and maxoutsize=0 receives the wrong response from rawcall. Depending on the...

CVE-2023-30629 Vyper's raw_call with outsize=0 and revert_on_failure=False returns incorrect success value

Vyper is a Pythonic Smart Contract Language for the ethereum virtual machine. In versions 0.3.1 through 0.3.7, the Vyper compiler generates the wrong bytecode. Any contract that uses the rawcall with revertonfailure=False and maxoutsize=0 receives the wrong response from rawcall. Depending on the...

CVE-2023-30629 Vyper's raw_call with outsize=0 and revert_on_failure=False returns incorrect success value

Vyper is a Pythonic Smart Contract Language for the ethereum virtual machine. In versions 0.3.1 through 0.3.7, the Vyper compiler generates the wrong bytecode. Any contract that uses the rawcall with revertonfailure=False and maxoutsize=0 receives the wrong response from rawcall. Depending on the...

CVE-2023-30629

CVE-2023-30629 affects the Vyper compiler (versions 0.3.1–0.3.7). When using built-in function raw_call with revert_on_failure=False and max_outsize=0 , the compiler generates incorrect bytecode, causing the returned value from the call to be an unreliable boolean (may be True or False) depending...

4337-snap (>=0.1.0, <=0.1.1), @0xabcdefg/smart-order-router (>=1.0.0, <=1.0.5) +1378 more potentially affected by CVE-2023-30542 via @openzeppelin/contracts (>=4.3.0, <=4.8.2)

@openzeppelin/contracts NPM version =4.3.0, =0.1.0, =1.0.0, =1.0.0, =3.24.7, =1.7.2, =0.107.10, =1.9.0, =0.107.0, =0.107.0, =0.107.0, =0.69.0, =0.107.0, =0.97.1, =0.107.0, =0.107.0, =0.123.2 and more Source cves: CVE-2023-30542 Source advisory: OSV:GHSA-93HQ-5WGC-JC82...

WS-2023-0112

A vulnerability was found in the eth-xmr atomic swap's smart contract. This will allow the attacker to drain almost all of the ethers from the smart contract. Due to technical reasons, there will remain only 1 ether in the smart contract...