github - ghsa-7rw5-c532-37cv

GHSA-7RW5-C532-37CV

Vulnerability from github – Published: 2023-08-10 00:30 – Updated: 2024-04-04 06:46

Details

Crypto wallets implementing the Lindell17 TSS protocol might allow an attacker to extract the full ECDSA private key by exfiltrating a single bit in every signature attempt (256 in total) because of not adhering to the paper's security proof's assumption regarding handling aborts after a failed signature.

Severity ?

9.6 (Critical)


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

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  "aliases": [
    "CVE-2023-33242"
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    "severity": "HIGH"
  },
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  "id": "GHSA-7rw5-c532-37cv",
  "modified": "2024-04-04T06:46:00Z",
  "published": "2023-08-10T00:30:52Z",
  "references": [
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      "url": "https://nvd.nist.gov/vuln/detail/CVE-2023-33242"
    },
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      "type": "WEB",
      "url": "https://eprint.iacr.org/2017/552.pdf"
    },
    {
      "type": "WEB",
      "url": "https://github.com/fireblocks-labs/mpc-ecdsa-attacks-23"
    },
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      "type": "WEB",
      "url": "https://github.com/fireblocks-labs/zengo-lindell17-exploit-poc"
    },
    {
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      "url": "https://www.fireblocks.com/blog/lindell17-abort-vulnerability-technical-report"
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      "score": "CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:C/C:H/I:H/A:N",
      "type": "CVSS_V3"
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}

CVE-2023-33242 (GCVE-0-2023-33242)

Vulnerability from cvelistv5 – Published: 2023-08-09 21:01 – Updated: 2024-10-10 12:47

Summary

Severity ?

9.6 (Critical)


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

CWE

Private Key Exfiltration

Assigner

Halborn

References

URL

Tags

	https://www.fireblocks.com/blog/lindell17-abort-v…
	https://github.com/fireblocks-labs/mpc-ecdsa-attacks-23
	https://github.com/fireblocks-labs/zengo-lindell1…
	https://eprint.iacr.org/2017/552.pdf

Impacted products

	Vendor	Product	Version
	Lindell TSS Implementations	Wallet	Affected: 17

Credits

Fireblocks Research, Nikolaos Makriyannis, Oren Yomtov

Show details on NVD website

JSON

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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

GHSA-7RW5-C532-37CV

CVE-2023-33242 (GCVE-0-2023-33242)

Tags

Sightings

Nomenclature