kernel: Linux kernel lockd: Denial of Service via uninitialized file lock field in NFSv3

A flaw was found in the Linux kernel's lockd component, which handles file locking. A local user could exploit this vulnerability by interacting with re-exported NFSv3 Network File System version 3 shares. This could cause the kernel to crash, leading to a Denial of Service DoS for the system...

Loss of funds on deposit when totalShares > 0 && priorTokenBalance == 0

Lines of code Vulnerability details Impact Withdrawing one's shares may return far less tokens than one deposited. Proof of Concept Shares returned when depositing is calculated in StrategyBase.deposit as if totalShares == 0 newShares = amount; else uint256 priorTokenBalance = tokenBalance -...

Attacker can make his stake immune to verifyOvercommittedStake.

Lines of code Vulnerability details Impact verifyOvercommittedStake for an EigenPod will be DOSed, and Attacker's shares will never be reduced even when his stake on BeaconChain gets slashed, and someone attempts to record the overcommitment. Proof of Concept Here is the...

verifyWithdrawalCredentialsAndBalance does not verify that oracleBlockNumber is the latest block number.

Lines of code Vulnerability details Impact After participating in Ethereum Staking, you may receive shares based on your balance when it was 32 ETH, even though you may have suffered a certain level of slashing at 32 ETH. Until some conscientious watcher proves the slashing in the Consensus Layer...

Skipping indices of malicious strategies does not work

Lines of code Vulnerability details Impact In src/contracts/core/StrategyManager.solL536 parameter indicesToSkip per documentation: """exists so that, e.g., if the slashed QueuedWithdrawal contains a malicious strategy in the strategies array which always reverts on calls to its 'withdraw'...

The values for strategyIndexes are not enforced

Lines of code Vulnerability details Proof of Concept strategyIndexes is used to indicate which strategies the caller will withdraw 100% of his shares, but it can contain any value when calling StrategyManager.queueWithdrawal and StrategyManager.slashShares. These two functions will reuse...

A staker with verified over-commitment can potentially bypass slashing completely

Lines of code Vulnerability details Description In EigenLayer, watchers submit over-commitment proof in the event a staker's balance on the Beacon chain falls below the minimum restaked amount per validator. In such a scenario, stakers’ shares are decreased by the restaked amount. Note that when ...

Staker can avoid ETH slash by front run slashQueuedWithdrawal() with completeQueuedWithdrawal()

Lines of code Vulnerability details Impact Malicious staker can avoid the service's slash on its restaked ETH shares. Proof of Concept This issue is similar to Staker can avoid ETH slash by front run slashShares with verifyOvercommittedStake, but with a different logic. When a service/middleware...

Staker can bypass the debt accrued via beaconChainETHSharesToDecrementOnWithdrawal by transferring shares to another address

Lines of code Vulnerability details Description When a staker is verified to have over-committed and the over-committed amount is greater than their outstanding shares, they accrue a debt that is captured by beaconChainETHSharesToDecrementOnWithdrawal. This debt eventually gets settled when the...

User minting FPS can get grieved by equity loss event

Lines of code Vulnerability details minting in onTokenTransfer handles the case equity = MINIMUMEQUITY, "insuf equity"; // ensures that the initial deposit is at least 1000 ZCHF 245: 246: // Assign 1000 FPS for the initial deposit, calculate the amount otherwise 247: uint256 shares = equity =...

samba bug fix and enhancement update

An update is available for samba. This update affects Rocky Linux 8. A Common Vulnerability Scoring System CVSS base score, which gives a detailed severity rating, is available for each vulnerability from the CVE list Samba is an open-source implementation of the Server Message Block SMB protocol...

CMLoot - Find Interesting Files Stored On (System Center) Configuration Manager (SCCM/CM) SMB Shares

CMLoot was created to easily find interesting files stored on System Center Configuration Manager SCCM/CM SMB shares. The shares are used for distributing software to Windows clients in Windows enterprise environments and can contains scripts/configuration files with passwords, certificates pfx,...

SUSE CVE-2023-28643

Nextcloud server is an open source home cloud implementation. In affected versions when a recipient receives 2 shares with the same name, while a memory cache is configured, the second share will replace the first one instead of being renamed to name 2. It is recommended that the Nextcloud Server...

CVE-2023-25000

A flaw was found in the Hashicorp vault. This flaw allows an attacker with access to and the ability to observe a large number of unseal operations on the host through a side channel to reduce the search space of a brute-force effort to recover the Shamir shares...

Vault Vulnerable to Cache-Timing Attacks During Seal and Unseal Operations

Summary HashiCorp Vault’s implementation of Shamir’s secret sharing used precomputed table lookups, and was vulnerable to cache-timing attacks. An attacker with access to, and the ability to observe a large number of unseal operations on the host through a side channel may reduce the search space...

Reth flashloan attack

Lines of code Vulnerability details Impact Using a flashloan to manipulate rETH/ETH price a hacker can receive more SafEth shares for the same amount of ether, thus draining all three derivative contracts rETH, SfrxEth and WstEth. Proof of Concept Reth.poolPrice depends on UniswapV3 pool.slot0...

HashiCorp Vault 安全漏洞

HashiCorp Vault is a private key access management tool from the US-based HashiCorp. HashiCorp Vault suffers from a security vulnerability that stems from vulnerability to a cache timing attack, where an attacker who is able to observe a large number of unblocking operations on a host through a...

sFrxEth may revert on redeeming non-zero amount

Lines of code Vulnerability details Impact Unstaking is blocked. Proof of Concept When unstaking the withdraw of each derivative is called. SfrxEth.withdraw calls IsFrxEthSFRXETHADDRESS.redeemamount, addressthis, addressthis;. This function may revert if amount is low due to the following line in...

Reth griefing

Lines of code Vulnerability details Impact The maximum slippage when buying rETH from the Uniswap V3 pool is calculated in Reth derivative contract by taking the current price in the Uniswap V3 pool at runtime, without taking into account the price at which the user sent the transaction to the...

FindUncommonShares - A Python Equivalent Of PowerView's Invoke-ShareFinder.ps1 Allowing To Quickly Find Uncommon Shares In Vast Windows Domains

The script FindUncommonShares.py is a Python equivalent of PowerView's Invoke-ShareFinder.ps1 allowing to quickly find uncommon shares in vast Windows Active Directory Domains. Features Only requires a low privileges domain user account. Automatically gets the list of all computers from the domai...