GHSA-C9VV-FHGV-CJC3

Vulnerability from github – Published: 2024-02-21 02:54 – Updated: 2024-02-21 18:57
VLAI?
Summary
agent-js: Insecure Key Generation in `Ed25519KeyIdentity.generate`
Details

Impact

The library offers a function to generate an ed25519 key pair via Ed25519KeyIdentity.generate with an optional param to provide a 32 byte seed value, which will then be used as the secret key. When no seed value is provided, it is expected that the library generates the secret key using secure randomness. However, a recent change broke this guarantee and uses an insecure seed for key pair generation.

Since the private key of this identity (535yc-uxytb-gfk7h-tny7p-vjkoe-i4krp-3qmcl-uqfgr-cpgej-yqtjq-rqe) is compromised, one could lose funds associated with the principal on ledgers or lose access to a canister where this principal is the controller. Users are asked to take proactive measures mentioned below in Workarounds:Users to protect their assets.

Patches

Patch for the vulnerability is available in v1.0.1 for all the packages listed in the advisory. Please upgrade and deploy your canisters immediately.

Workarounds

Developers

The recommended fix is to upgrade the package to the patched version. If that is not possible, there are couple of workarounds to handle the insecure key generation.

  1. Invoking the function as Ed25519KeyIdentity.generate(null) would fix the broken conditional evaluation and force the function to generate a securely random seed. However, this is not guaranteed to work for future upgrades.
  2. Passing a securely generated randomness as a seed to Ed25519KeyIdentity.generate would force the library to use it as the seed to generate the key pair.

Users

Removing a controller of a canister if it's the affected principal

For all canisters you control, fetch the controllers of the canisters using

dfx canister info --ic <CANISTER>

If you see the principal 535yc-uxytb-gfk7h-tny7p-vjkoe-i4krp-3qmcl-uqfgr-cpgej-yqtjq-rqe as one of the controllers, follow the steps below

dfx identity whoami # record CURRENT_IDENTITY

dfx identity new <NEW_IDENTITY_NAME> 
dfx identity use <NEW_IDENTITY_NAME> 
dfx identity get-principal <NEW_IDENTITY_NAME> # record NEW_IDENTITY_PRINCIPAL

dfx identity use <CURRENT_IDENTITY>
dfx canister update-settings --ic <CANISTER> --add-controller <NEW_IDENTITY_PRINCIPAL>
dfx canister update-settings --ic <CANISTER> --remove-controller `535yc-uxytb-gfk7h-tny7p-vjkoe-i4krp-3qmcl-uqfgr-cpgej-yqtjq-rqe`

For more details on canister management, please visit here

Checking funds on wallets / ledgers

If you have funds on ledgers using a browser wallet, please check if the account principal matches 535yc-uxytb-gfk7h-tny7p-vjkoe-i4krp-3qmcl-uqfgr-cpgej-yqtjq-rqe. If it does, please create a new account and transfer the funds to the new account immediately.

References

  1. fix PR link
  2. NPM patched version
  3. agent-js Github repo
  4. agent-js docs
Show details on source website

{
  "affected": [
    {
      "package": {
        "ecosystem": "npm",
        "name": "@dfinity/identity"
      },
      "ranges": [
        {
          "events": [
            {
              "introduced": "0.20.0-beta.0"
            },
            {
              "fixed": "1.0.1"
            }
          ],
          "type": "ECOSYSTEM"
        }
      ]
    },
    {
      "package": {
        "ecosystem": "npm",
        "name": "@dfinity/auth-client"
      },
      "ranges": [
        {
          "events": [
            {
              "introduced": "0.20.0-beta.0"
            },
            {
              "fixed": "1.0.1"
            }
          ],
          "type": "ECOSYSTEM"
        }
      ]
    }
  ],
  "aliases": [
    "CVE-2024-1631"
  ],
  "database_specific": {
    "cwe_ids": [
      "CWE-321",
      "CWE-330"
    ],
    "github_reviewed": true,
    "github_reviewed_at": "2024-02-21T02:54:56Z",
    "nvd_published_at": "2024-02-21T03:15:08Z",
    "severity": "CRITICAL"
  },
  "details": "## Impact\n\nThe library offers a function to generate an ed25519 key pair via `Ed25519KeyIdentity.generate` with an optional param to provide a 32 byte seed value, which will then be used as the secret key. **When no seed value is provided, it is expected that the library generates the secret key using secure randomness**. However, a recent change **broke this guarantee** and **uses an insecure seed for key pair generation**.\n\nSince the private key of this identity (`535yc-uxytb-gfk7h-tny7p-vjkoe-i4krp-3qmcl-uqfgr-cpgej-yqtjq-rqe`) is compromised, one could lose funds associated with the principal on ledgers or lose access to a canister where this principal is the controller. Users are asked to take proactive measures mentioned below in Workarounds:Users to protect their assets. \n\n## Patches\nPatch for the vulnerability is **available in v1.0.1** for all the packages listed in the advisory. Please upgrade and deploy your canisters immediately. \n\n## Workarounds\n\n### Developers\n\nThe recommended fix is to upgrade the package to the patched version. If that is not possible, there are couple of workarounds to handle the insecure key generation.\n\n1. Invoking the function as `Ed25519KeyIdentity.generate(null)` would fix the broken conditional evaluation and force the function to generate a securely random seed. However, this is not guaranteed to work for future upgrades.\n2. Passing a securely generated randomness as a seed to `Ed25519KeyIdentity.generate` would force the library to use it as the seed to generate the key pair.\n\n### Users\n\n#### Removing a controller of a canister if it\u0027s the affected principal\n\nFor all canisters you control, fetch the controllers of the canisters using \n```sh\ndfx canister info --ic \u003cCANISTER\u003e\n```\nIf you see the principal `535yc-uxytb-gfk7h-tny7p-vjkoe-i4krp-3qmcl-uqfgr-cpgej-yqtjq-rqe` as one of the controllers, follow the steps below \n```sh\ndfx identity whoami # record CURRENT_IDENTITY\n\ndfx identity new \u003cNEW_IDENTITY_NAME\u003e \ndfx identity use \u003cNEW_IDENTITY_NAME\u003e \ndfx identity get-principal \u003cNEW_IDENTITY_NAME\u003e # record NEW_IDENTITY_PRINCIPAL\n\ndfx identity use \u003cCURRENT_IDENTITY\u003e\ndfx canister update-settings --ic \u003cCANISTER\u003e --add-controller \u003cNEW_IDENTITY_PRINCIPAL\u003e\ndfx canister update-settings --ic \u003cCANISTER\u003e --remove-controller `535yc-uxytb-gfk7h-tny7p-vjkoe-i4krp-3qmcl-uqfgr-cpgej-yqtjq-rqe`\n```\nFor more details on canister management, please visit [here](https://internetcomputer.org/docs/current/tutorials/developer-journey/level-1/1.6-managing-canisters)\n\n#### Checking funds on wallets /  ledgers\n\nIf you have funds on ledgers using a browser wallet, please check if the account principal matches `535yc-uxytb-gfk7h-tny7p-vjkoe-i4krp-3qmcl-uqfgr-cpgej-yqtjq-rqe`. If it does, please create a new account and transfer the funds to the new account immediately.\n\n## References\n\n1. [fix PR link](https://github.com/dfinity/agent-js/pull/851)\n2. [NPM patched version](https://www.npmjs.com/package/@dfinity/identity/v/1.0.1)\n3. [agent-js Github repo](https://github.com/dfinity/agent-js)\n4. [agent-js docs](https://agent-js.icp.xyz/identity/index.html)\n\n",
  "id": "GHSA-c9vv-fhgv-cjc3",
  "modified": "2024-02-21T18:57:59Z",
  "published": "2024-02-21T02:54:56Z",
  "references": [
    {
      "type": "WEB",
      "url": "https://github.com/dfinity/agent-js/security/advisories/GHSA-c9vv-fhgv-cjc3"
    },
    {
      "type": "ADVISORY",
      "url": "https://nvd.nist.gov/vuln/detail/CVE-2024-1631"
    },
    {
      "type": "WEB",
      "url": "https://github.com/dfinity/agent-js/pull/851"
    },
    {
      "type": "WEB",
      "url": "https://agent-js.icp.xyz/identity/index.html"
    },
    {
      "type": "PACKAGE",
      "url": "https://github.com/dfinity/agent-js"
    },
    {
      "type": "WEB",
      "url": "https://www.npmjs.com/package/@dfinity/identity/v/1.0.1"
    }
  ],
  "schema_version": "1.4.0",
  "severity": [
    {
      "score": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:N",
      "type": "CVSS_V3"
    }
  ],
  "summary": "agent-js: Insecure Key Generation in `Ed25519KeyIdentity.generate`"
}


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  • Seen: The vulnerability was mentioned, discussed, or observed by the user.
  • Confirmed: The vulnerability has been validated from an analyst's perspective.
  • Published Proof of Concept: A public proof of concept is available for this vulnerability.
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  • Not confirmed: The user expressed doubt about the validity of the vulnerability.
  • Not patched: The vulnerability was not observed as successfully patched by the user who reported the sighting.


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