Staker.sol: Wrong values returned in edge cases of _calculateFloatPerSecond()

Handle hickuphh3 Vulnerability details Impact In calculateFloatPerSecond, the edge cases where full rewards go to either the long or short token returns return 1e18 k longPrice, 0; and return 0, 1e18 k shortPrice; respectively. This is however 1e18 times too large. We can verify this by checking...

SwappableYieldSource: Missing same deposit token check in transferFunds()

Handle hickuphh3 Vulnerability details Impact transferFunds will transfer funds from a specified yield source yieldSource to the current yield source set in the contract currentYieldSource. However, it fails to check that the deposit tokens are the same. If the specified yield source's assets are...

Inconsistent balance when supplying transfer-on-fee or deflationary tokens

Handle shw Vulnerability details Impact The supplyTokenTo function of SwappableYieldSource assumes that amount of depositToken is transferred to itself after calling the safeTransferFrom function and thus it supplies amount of token to the yield source. However, this may not be true if the...

Exploit for CVE-2021-1675

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[Gov.sol] Ignoring the return value of function _token.approve(...)

Handle eriksal1217 Vulnerability details Impact Medium Risk vulnerability - This does not immediately affect the contract, tokens, or funds associated but could have negative effects in regards to how the contract behaves when executing this functionality. Proof of Concept According to Slither...

Allowance cannot be reset once it is set to the maximum

Handle shw Vulnerability details Impact The approve functions of the pool LP tokens and synths do nothing if the allowances is already the maximum number, i.e., typeuint256.max. Therefore, Alice cannot change her allowance to Bob once she approved him with the maximum approval. Proof of Concept...

Swap fees are not accounted for if users swap directly from the pools

Handle shw Vulnerability details Impact The Pool calculates swap fees whenever there is a swap between the SPARTA and the TOKEN or synths. The Router uses this fee value to decide the amount of dividend transferred from the Reserve to the Pool. However, if a user performs the swap by directly...

Security Bulletin: Publicly disclosed vulnerabilities from Kernel affect IBM Netezza Host Management

Summary Kernel is used by IBM Netezza Host Management. This bulletin provides mitigation for the reported CVEs Vulnerability Details CVEID: CVE-2021-28950 DESCRIPTION: Linux Kernel is vulnerable to a denial of service, caused by an issue when a retry loop continually finds the same bad inode in...

Possible to deny proposal creations

Handle cmichel Vulnerability details There can only ever be one active proposal. An attacker could front-run a proposal creation by submitting a dummy proposal. The original proposal creation would fail. Impact The cost of the attack is the proposal fees. There can be an incentive to deny the...

Deployer backdoors in DAOVault, Router and SynthVault contracts

Handle 0xRajeev Vulnerability details Impact The contracts use an access control pattern where the contract deployer is included in the onlyDAO modifier which is used for authorized access to critical functions. Such contracts also include a purgeDeployer function which renounces sets to...

Misplaced logic leads to loss of member bondedLP funds

Handle 0xRajeev Vulnerability details Impact In claimForMember, the member claims back some of their bonded LPs. The check to see if claimRate can be made 0 should preceed the claimable deduction on L110. This misplaced check after deduction leads to incorrect zero-ing of member’s non-zero...

Router._handleTransferOut(address,uint256,address) has unchecked transfer

Handle heiho1 Vulnerability details Impact Router.handleTransferOutaddress,uint256,address on line 221 ignores the boolean return on transfers. This is a brittle implementation because it relies on the boolean return value being hard-coded to true. Tokens may return false and not revert in which...

Router.swapSynthToAsset(uint256,address,address) has unchecked transfer

Handle heiho1 Vulnerability details Impact Router.swapSynthToAssetuint256,address,address on line 249 ignores the boolean return on transfers. This is a brittle implementation because it relies on the boolean return value being hard-coded to true. Tokens may return false and not revert in which...

Router.removeLiquiditySingle(uint256,bool,address) has unchecked transfers

Handle heiho1 Vulnerability details Impact Router.removeLiquiditySingleuint256,bool,address on lines 121, 126, 129 ignores the boolean return on transfers. This is a brittle implementation because it relies on the boolean return value being hard-coded to true. Tokens may return false instead of...

withdraw() not defined (Router.sol#217)

Handle 7811 Vulnerability details Impact withdraw not defined. iWBNBWBNB.withdrawamount; Router.sol217 Proof of Concept Tools Used editor Recommended Mitigation Steps --- The text was updated successfully, but these errors were encountered: All reactions...

Missing slippage checks

Handle cmichel Vulnerability details The Router and Pool does not implement any slippage checks with comparing the swap / liquidity results with a minimum swap / liquidity value. Impact Users can be frontrun and receive a worse price than expected when they initially submitted the transaction...

Deflationary and fee-on-transfer tokens are not correctly accounted

Handle shw Vulnerability details Impact When a user transfers deflationary or fee-on-transfer tokens to the LendingPair, the pair does not correctly handle the received amount, causing the minted LP token amount to be greater than the received amount. Transactions calling the withdrawAll function...

PT-2021-3932 · Advantech · Advantech R-Seenet

Name of the Vulnerable Software and Affected Versions: Advantech R-SeeNet version 2.4.12 Description: The issue exists in the telnet form.php script functionality, allowing for cross-site scripting vulnerabilities. If a user visits a specially crafted URL, it can lead to arbitrary JavaScript code...

SelfBurn lpToken may create bad debt

Handle jonah1005 Vulnerability details Impact Users can create bad debt by burning their lpToken. Bad debt of the system would increase the utilization rate and hence increase the interest rate of the counterpart token. It would be a reasonable action to burn lp if the user is no longer profitabl...

The safe versions of transfer/transferFrom are not implemented as expected

Handle 0xRajeev Vulnerability details Impact The “safe” versions of token transfer/transferFrom as implemented either by OpenZeppelin’s SafeERC20 or Uniswap libraries, use a low-level call and make checks on the return data to handle cases where tokens may not return any value on...