Vulnerability-Lookup

GHSA-H4GQ-Q399-XM7R

Vulnerability from github – Published: 2022-05-14 02:20 – Updated: 2022-05-14 02:20

Details

The randMod() function of the smart contract implementation for MyCryptoChamp, an Ethereum game, generates a random value with publicly readable variables such as the current block information and a private variable, (which can be read with a getStorageAt call). Therefore, attackers can get powerful champs/items and get rewards.

Severity

5.9 (Medium)


                  
                    CVSS:3.0/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:N/A:N

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{
  "affected": [],
  "aliases": [
    "CVE-2018-12885"
  ],
  "database_specific": {
    "cwe_ids": [
      "CWE-338"
    ],
    "github_reviewed": false,
    "github_reviewed_at": null,
    "nvd_published_at": "2018-08-07T15:29:00Z",
    "severity": "MODERATE"
  },
  "details": "The randMod() function of the smart contract implementation for MyCryptoChamp, an Ethereum game, generates a random value with publicly readable variables such as the current block information and a private variable, (which can be read with a getStorageAt call). Therefore, attackers can get powerful champs/items and get rewards.",
  "id": "GHSA-h4gq-q399-xm7r",
  "modified": "2022-05-14T02:20:31Z",
  "published": "2022-05-14T02:20:31Z",
  "references": [
    {
      "type": "ADVISORY",
      "url": "https://nvd.nist.gov/vuln/detail/CVE-2018-12885"
    },
    {
      "type": "WEB",
      "url": "https://etherscan.io/address/0x689FB61845488297dfE7586E5f7956475955d2Dc"
    },
    {
      "type": "WEB",
      "url": "https://etherscan.io/address/0xa44e464b13280340904ffef0a65b8a0033460430"
    },
    {
      "type": "WEB",
      "url": "https://medium.com/coinmonks/get-legendary-items-by-breaking-pnrg-of-mycyptochamp-an-ethereum-online-game-cve-2018-12855-6e6beb41b8df"
    }
  ],
  "schema_version": "1.4.0",
  "severity": [
    {
      "score": "CVSS:3.0/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:N/A:N",
      "type": "CVSS_V3"
    }
  ]
}

CVE-2018-12885 (GCVE-0-2018-12885)

Vulnerability from cvelistv5 – Published: 2018-08-07 15:00 – Updated: 2024-08-05 08:45

Summary

Severity

No CVSS data available.

CWE

Assigner

mitre

References

3 references

URL	Tags
https://etherscan.io/address/0xa44e464b1328034090…	x_refsource_MISC
https://medium.com/coinmonks/get-legendary-items-…	x_refsource_MISC
https://etherscan.io/address/0x689FB61845488297df…	x_refsource_MISC

Date Public

2018-07-30 00:00

Show details on NVD website

JSON

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  "containers": {
    "adp": [
      {
        "providerMetadata": {
          "dateUpdated": "2024-08-05T08:45:02.506Z",
          "orgId": "af854a3a-2127-422b-91ae-364da2661108",
          "shortName": "CVE"
        },
        "references": [
          {
            "tags": [
              "x_refsource_MISC",
              "x_transferred"
            ],
            "url": "https://etherscan.io/address/0xa44e464b13280340904ffef0a65b8a0033460430"
          },
          {
            "tags": [
              "x_refsource_MISC",
              "x_transferred"
            ],
            "url": "https://medium.com/coinmonks/get-legendary-items-by-breaking-pnrg-of-mycyptochamp-an-ethereum-online-game-cve-2018-12855-6e6beb41b8df"
          },
          {
            "tags": [
              "x_refsource_MISC",
              "x_transferred"
            ],
            "url": "https://etherscan.io/address/0x689FB61845488297dfE7586E5f7956475955d2Dc"
          }
        ],
        "title": "CVE Program Container"
      }
    ],
    "cna": {
      "affected": [
        {
          "product": "n/a",
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          "versions": [
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              "status": "affected",
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            }
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      "datePublic": "2018-07-30T00:00:00.000Z",
      "descriptions": [
        {
          "lang": "en",
          "value": "The randMod() function of the smart contract implementation for MyCryptoChamp, an Ethereum game, generates a random value with publicly readable variables such as the current block information and a private variable, (which can be read with a getStorageAt call). Therefore, attackers can get powerful champs/items and get rewards."
        }
      ],
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      "providerMetadata": {
        "dateUpdated": "2018-08-07T14:57:01.000Z",
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      },
      "references": [
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        },
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      ],
      "x_legacyV4Record": {
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          "ASSIGNER": "cve@mitre.org",
          "ID": "CVE-2018-12885",
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                            "version_value": "n/a"
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            {
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              "refsource": "MISC",
              "url": "https://medium.com/coinmonks/get-legendary-items-by-breaking-pnrg-of-mycyptochamp-an-ethereum-online-game-cve-2018-12855-6e6beb41b8df"
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Sightings

Author	Source	Type	Date	Other

Nomenclature

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.
Exploited: The vulnerability was observed as exploited by the user who reported the sighting.
Patched: The vulnerability was observed as successfully patched by the user who reported the sighting.
Not exploited: The vulnerability was not observed as exploited by the user who reported the sighting.
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.

Detection rules are retrieved from Rulezet.

Action not permitted

GHSA-H4GQ-Q399-XM7R

CVE-2018-12885 (GCVE-0-2018-12885)

Tags

Sightings

Nomenclature