Fully qualified domain names are incorrectly resolved

Lines of code Vulnerability details Impact A relative domain name like foo.eth becomes fully qualified if it ends with a dot, e.g. foo.eth., although this might seem unfamiliar to some, it's the standard and part of the DNS specification, see Fully qualified domain name, Trailing Dots in Domain...

Invalid addresses will be accepted as resolvers, possibly bricking assets

Lines of code Vulnerability details Description The hexToAddress utility parses a string into an address type. function hexToAddress bytes memory str, uint256 idx, uint256 lastIdx internal pure returns address, bool if lastIdx - idx 40 return address0x0, false; bytes32 r, bool valid =...

Incorrect implementation of RRUtils.serialNumberGte

Lines of code Vulnerability details Impact Comparing serial numbers should follow RFC1982 due to the possibility of numbers wrapping around. RRUtils.serialNumberGte tried to follow the RFC but failed to do so, leading to incorrect results in comparison. Proof of Concept For a serial number i1 to ...

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...

If a label for a domain gets locked once, the domain will never be able to be claimed in DNSRegistrar.sol, since there's no method to unlock a label

Lines of code Vulnerability details Proof of Concept When claiming a domain in DNSRegistrar.sol either through proveAndClaim or proveAndClaimWithResolver, the internal function enableNode will be called. The snippet bellow shows that when owner == address0 or owner == previousRegistrar and...

HexUtils.hexStringToBytes32 does not exclude the last index in str

Lines of code Vulnerability details Impact The HexUtils.hexStringToBytes32 intends to exclude the lastIdx index in the input str. See the @param comment for lastIdx parameter: / @dev Attempts to parse bytes32 from a hex string @param str The string to parse @param idx The offset to start parsing ...

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...

Anyone can call enableNode and set a node resolver

Lines of code Vulnerability details Impact The lack of access control allows anyone to call the enableNode function and set the ENS resolver to the resolver set in DNSRegistrar if it has not been set before, or it belongs to the previous registrar set on the contract. This results in any unset no...

Prevent users from creating plugin repository proxy

Lines of code Vulnerability details Impact The attacker can Front-running the transaction and prevent users from creating plugin repository proxy. Proof of Concept The PluginRepoFactory.createPluginRepo is used to create a plugin repository proxy pointing to the pluginRepoBase implementation and...

Front-running to register subdomain

Lines of code Vulnerability details Impact An attacker can Front-running createDao to register the subdomain and revert the user's transaction. Proof of Concept The createDao function is used to creates a new DAO, registers it on the DAO registry, and installs a list of plugins via the plugin set...

Security Bulletin: Unspecified vulnerability in Java Affects IBM Infosphere Global Name Management (CVE-2022-21496)

Summary The Java used in IBM Global Name Management has an unspecified vulnerability related to the JNDI component. Within GNM, this issue only affects ENS, a part of GNM 6 installed by a small minority of GNM customers. For GNM customers not using ENS, there is no vulnerability. Vulnerability...

Security Bulletin: Vulnerabilities in IBM WebSphere Liberty affects IBM InfoSphere Global Name Management (CVE-2022-22475, CVE-2022-22476)

Summary The IBM WebSphere Liberty used in IBM InfoSphere Global Name Management is vulnerable to identity spoofing by an authenticated user. This issue only affects ENS, a part of GNM 6 installed by a small minority of GNM customers. For GNM customers not using ENS, there is no vulnerability...

The patch is not sufficient: there is another insidious exploit that can cause the same critical consequences

Lines of code Vulnerability details Status Has been reported to and confirmed by Jeff ENS team Note to the Judge I am not sure whether I should label this as a newly-identified High or a mitigation hard error. The root cause of this issue seems as same as the original report, but this requires us...

[ZZ-001] PARENT_CANNOT_CONTROL and CANNOT_CREATE_SUBDOMAIN fuses can be bypassed

Severity: High Status: Has been reported to and comfirmed by Jeff ENS team Report Time: 11/28/2022 12:31 AM EST Description The fuse constraints can be violated by a malicious owner of the parent node i.e., the hacker. There are two specific consequences the hacker can cause. Suppose the subnode...

Upgraded Q -> M from 143 [1663859521800]

Judge has assessed an item in Issue 143 as Medium risk. The relevant finding follows: 2.ETHRegistrarController.register can pass any "resolver" and "data" parameters , then ETHRegistrarController do "functionCall " It is possible to pass malicious parameters example : resolver =...

[PNM-002] The expiry of the parent node can be smaller than the one of a child node, violating the guarantee policy

Lines of code Vulnerability details Description By design, the child node's expiry can only be extended up to the parent's current one. Adding these restrictions means that the ENS users only have to look at the name itself's fuses and expiry without traversing the hierarchy to understand what...

Incorrect implementation of RRUtils.serialNumberGte

Lines of code Vulnerability details Impact Comparing serial numbers should follow RFC1982 due to the possibility of numbers wrapping around. RRUtils.serialNumberGte tried to follow the RFC but failed to do so, leading to incorrect results in comparison. Proof of Concept For a serial number i1 to ...

Contracts calls to main ENS services will fail. Plus, ETHRegistrarController#withdraw() with future upgrades will revert

Lines of code Vulnerability details This is a classic Code4rena issue. The transfer call has a hard coded gas budget whenever this affect another part of the EVM will be very harmful for those usage which will make the system and its users at risk. There is two parts of this issue; when the calle...

Security Bulletin: LDAP vulnerability in WebSphere Liberty Profile can affect IBM InfoSphere Global Name Management ENS (CVE-2021-39031)

Summary A vulnerability in the WebSphere Liberty Profile used in IBM InfoSphere Global Name Management GNM Enterprise Name Service ENS could allow a remote authenticated attacker to conduct an LDAP injection. This issue only affects ENS, a part of GNM installed by a small minority of GNM customer...

Validate the Efficacy of your Endpoint Security Controls Continuously with Breach and Attack Simulations

Validate the efficacy of your Endpoint Security controls continuously with Breach and Attack Simulations By Nicolas Stricher, Trellix XDR solution Architect, EMEA and Doron RosenbergTrellix Senior Sales Engineer, Israel · March 4, 2022 Efficacy of Trellix Endpoint Security At Trellix we are proud...