Vulnerability-Lookup

CVE-2023-39910 (GCVE-0-2023-39910)

Vulnerability from cvelistv5 – Published: 2023-08-09 00:00 – Updated: 2024-10-10 18:10

Summary

The cryptocurrency wallet entropy seeding mechanism used in Libbitcoin Explorer 3.0.0 through 3.6.0 is weak, aka the Milk Sad issue. The use of an mt19937 Mersenne Twister PRNG restricts the internal entropy to 32 bits regardless of settings. This allows remote attackers to recover any wallet private keys generated from "bx seed" entropy output and steal funds. (Affected users need to move funds to a secure new cryptocurrency wallet.) NOTE: the vendor's position is that there was sufficient documentation advising against "bx seed" but others disagree. NOTE: this was exploited in the wild in June and July 2023.

Severity ?

No CVSS data available.

CWE

Assigner

mitre

References

URL

Tags

	https://github.com/libbitcoin/libbitcoin-explorer…
	https://github.com/libbitcoin/libbitcoin-explorer…
	https://github.com/libbitcoin/libbitcoin-system/b…
	https://milksad.info/disclosure.html
	https://news.ycombinator.com/item?id=37054862
	https://github.com/libbitcoin/libbitcoin-explorer…

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FKIE_CVE-2023-39910

Vulnerability from fkie_nvd - Published: 2023-08-09 03:15 - Updated: 2024-11-21 08:16

Severity ?

7.5 (High) - CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N

Summary

References

URL	Tags
cve@mitre.org	https://github.com/libbitcoin/libbitcoin-explorer/blob/20eba4db9a8a3476949d6fd08a589abda7fde3e3/src/commands/seed.cpp#L44	Third Party Advisory
cve@mitre.org	https://github.com/libbitcoin/libbitcoin-explorer/blob/20eba4db9a8a3476949d6fd08a589abda7fde3e3/src/utility.cpp#L78	Third Party Advisory
cve@mitre.org	https://github.com/libbitcoin/libbitcoin-explorer/wiki/CVE-2023-39910
cve@mitre.org	https://github.com/libbitcoin/libbitcoin-system/blob/a1b777fc51d9c04e0c7a1dec5cc746b82a6afe64/src/crypto/pseudo_random.cpp#L66C12-L78	Third Party Advisory
cve@mitre.org	https://milksad.info/disclosure.html	Third Party Advisory
cve@mitre.org	https://news.ycombinator.com/item?id=37054862	Third Party Advisory
af854a3a-2127-422b-91ae-364da2661108	https://github.com/libbitcoin/libbitcoin-explorer/blob/20eba4db9a8a3476949d6fd08a589abda7fde3e3/src/commands/seed.cpp#L44	Third Party Advisory
af854a3a-2127-422b-91ae-364da2661108	https://github.com/libbitcoin/libbitcoin-explorer/blob/20eba4db9a8a3476949d6fd08a589abda7fde3e3/src/utility.cpp#L78	Third Party Advisory
af854a3a-2127-422b-91ae-364da2661108	https://github.com/libbitcoin/libbitcoin-explorer/wiki/CVE-2023-39910
af854a3a-2127-422b-91ae-364da2661108	https://github.com/libbitcoin/libbitcoin-system/blob/a1b777fc51d9c04e0c7a1dec5cc746b82a6afe64/src/crypto/pseudo_random.cpp#L66C12-L78	Third Party Advisory
af854a3a-2127-422b-91ae-364da2661108	https://milksad.info/disclosure.html	Third Party Advisory
af854a3a-2127-422b-91ae-364da2661108	https://news.ycombinator.com/item?id=37054862	Third Party Advisory

Impacted products

	Vendor	Product	Version
	libbitcoin	libbitcoin_explorer	*

JSON

To clipboard

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      "tags": [
        "Third Party Advisory"
      ],
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    },
    {
      "source": "cve@mitre.org",
      "tags": [
        "Third Party Advisory"
      ],
      "url": "https://github.com/libbitcoin/libbitcoin-explorer/blob/20eba4db9a8a3476949d6fd08a589abda7fde3e3/src/utility.cpp#L78"
    },
    {
      "source": "cve@mitre.org",
      "url": "https://github.com/libbitcoin/libbitcoin-explorer/wiki/CVE-2023-39910"
    },
    {
      "source": "cve@mitre.org",
      "tags": [
        "Third Party Advisory"
      ],
      "url": "https://github.com/libbitcoin/libbitcoin-system/blob/a1b777fc51d9c04e0c7a1dec5cc746b82a6afe64/src/crypto/pseudo_random.cpp#L66C12-L78"
    },
    {
      "source": "cve@mitre.org",
      "tags": [
        "Third Party Advisory"
      ],
      "url": "https://milksad.info/disclosure.html"
    },
    {
      "source": "cve@mitre.org",
      "tags": [
        "Third Party Advisory"
      ],
      "url": "https://news.ycombinator.com/item?id=37054862"
    },
    {
      "source": "af854a3a-2127-422b-91ae-364da2661108",
      "tags": [
        "Third Party Advisory"
      ],
      "url": "https://github.com/libbitcoin/libbitcoin-explorer/blob/20eba4db9a8a3476949d6fd08a589abda7fde3e3/src/commands/seed.cpp#L44"
    },
    {
      "source": "af854a3a-2127-422b-91ae-364da2661108",
      "tags": [
        "Third Party Advisory"
      ],
      "url": "https://github.com/libbitcoin/libbitcoin-explorer/blob/20eba4db9a8a3476949d6fd08a589abda7fde3e3/src/utility.cpp#L78"
    },
    {
      "source": "af854a3a-2127-422b-91ae-364da2661108",
      "url": "https://github.com/libbitcoin/libbitcoin-explorer/wiki/CVE-2023-39910"
    },
    {
      "source": "af854a3a-2127-422b-91ae-364da2661108",
      "tags": [
        "Third Party Advisory"
      ],
      "url": "https://github.com/libbitcoin/libbitcoin-system/blob/a1b777fc51d9c04e0c7a1dec5cc746b82a6afe64/src/crypto/pseudo_random.cpp#L66C12-L78"
    },
    {
      "source": "af854a3a-2127-422b-91ae-364da2661108",
      "tags": [
        "Third Party Advisory"
      ],
      "url": "https://milksad.info/disclosure.html"
    },
    {
      "source": "af854a3a-2127-422b-91ae-364da2661108",
      "tags": [
        "Third Party Advisory"
      ],
      "url": "https://news.ycombinator.com/item?id=37054862"
    }
  ],
  "sourceIdentifier": "cve@mitre.org",
  "vulnStatus": "Modified",
  "weaknesses": [
    {
      "description": [
        {
          "lang": "en",
          "value": "CWE-338"
        }
      ],
      "source": "nvd@nist.gov",
      "type": "Primary"
    }
  ]
}

GHSA-PRGJ-H7JQ-7P9H

Vulnerability from github – Published: 2023-08-09 03:30 – Updated: 2024-04-04 06:43

Details

Severity ?

7.5 (High)


                  
                    CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N

Show details on source website

JSON

To clipboard

{
  "affected": [],
  "aliases": [
    "CVE-2023-39910"
  ],
  "database_specific": {
    "cwe_ids": [
      "CWE-338"
    ],
    "github_reviewed": false,
    "github_reviewed_at": null,
    "nvd_published_at": "2023-08-09T03:15:44Z",
    "severity": "HIGH"
  },
  "details": "The cryptocurrency wallet entropy seeding mechanism used in Libbitcoin Explorer 3.0.0 through 3.6.0 is weak, aka the Milk Sad issue. The use of an mt19937 Mersenne Twister PRNG restricts the internal entropy to 32 bits regardless of settings. This allows remote attackers to recover any wallet private keys generated from \"bx seed\" entropy output and steal funds. (Affected users need to move funds to a secure new cryptocurrency wallet.) NOTE: the vendor\u0027s position is that there was sufficient documentation advising against \"bx seed\" but others disagree. NOTE: this was exploited in the wild in June and July 2023.",
  "id": "GHSA-prgj-h7jq-7p9h",
  "modified": "2024-04-04T06:43:16Z",
  "published": "2023-08-09T03:30:45Z",
  "references": [
    {
      "type": "ADVISORY",
      "url": "https://nvd.nist.gov/vuln/detail/CVE-2023-39910"
    },
    {
      "type": "WEB",
      "url": "https://github.com/libbitcoin/libbitcoin-explorer/blob/20eba4db9a8a3476949d6fd08a589abda7fde3e3/src/commands/seed.cpp#L44"
    },
    {
      "type": "WEB",
      "url": "https://github.com/libbitcoin/libbitcoin-explorer/blob/20eba4db9a8a3476949d6fd08a589abda7fde3e3/src/utility.cpp#L78"
    },
    {
      "type": "WEB",
      "url": "https://github.com/libbitcoin/libbitcoin-explorer/wiki/CVE-2023-39910"
    },
    {
      "type": "WEB",
      "url": "https://github.com/libbitcoin/libbitcoin-system/blob/a1b777fc51d9c04e0c7a1dec5cc746b82a6afe64/src/crypto/pseudo_random.cpp#L66C12-L78"
    },
    {
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      "url": "https://milksad.info/disclosure.html"
    },
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      "type": "WEB",
      "url": "https://news.ycombinator.com/item?id=37054862"
    }
  ],
  "schema_version": "1.4.0",
  "severity": [
    {
      "score": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N",
      "type": "CVSS_V3"
    }
  ]
}

GSD-2023-39910

Vulnerability from gsd - Updated: 2023-12-13 01:20

Details

Aliases

CVE-2023-39910

Aliases

CVE-2023-39910

JSON

To clipboard

{
  "GSD": {
    "alias": "CVE-2023-39910",
    "id": "GSD-2023-39910"
  },
  "gsd": {
    "metadata": {
      "exploitCode": "unknown",
      "remediation": "unknown",
      "reportConfidence": "confirmed",
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    },
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        "CVE-2023-39910"
      ],
      "details": "The cryptocurrency wallet entropy seeding mechanism used in Libbitcoin Explorer 3.0.0 through 3.6.0 is weak, aka the Milk Sad issue. The use of an mt19937 Mersenne Twister PRNG restricts the internal entropy to 32 bits regardless of settings. This allows remote attackers to recover any wallet private keys generated from \"bx seed\" entropy output and steal funds. (Affected users need to move funds to a secure new cryptocurrency wallet.) NOTE: the vendor\u0027s position is that there was sufficient documentation advising against \"bx seed\" but others disagree. NOTE: this was exploited in the wild in June and July 2023.",
      "id": "GSD-2023-39910",
      "modified": "2023-12-13T01:20:33.144259Z",
      "schema_version": "1.4.0"
    }
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            "baseScore": 7.5,
            "baseSeverity": "HIGH",
            "confidentialityImpact": "HIGH",
            "integrityImpact": "NONE",
            "privilegesRequired": "NONE",
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      "lastModifiedDate": "2023-09-07T07:15Z",
      "publishedDate": "2023-08-09T03:15Z"
    }
  }
}

Sightings

Author	Source	Type	Date

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

CVE-2023-39910 (GCVE-0-2023-39910)

FKIE_CVE-2023-39910

GHSA-PRGJ-H7JQ-7P9H

GSD-2023-39910

Tags

Sightings

Nomenclature