Vulnerability-Lookup

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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  "id": "GHSA-7rw5-c532-37cv",
  "modified": "2024-04-04T06:46:00Z",
  "published": "2023-08-10T00:30:52Z",
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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

Title

Lindell17 TSS Abort Mishandling

Summary

Severity

9.6 (Critical)


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

SSVC

Exploitation: poc Automatable: no Technical Impact: total

CISA Coordinator · CISA-ADP (v2.0.3)

Decision recorded 2024-10-10 12:47 UTC

CWE

Private Key Exfiltration

Assigner

Halborn mitre root

References

4 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

1 product

Vendor	Product	Version
Lindell TSS Implementations	Wallet	Affected: 17

Date Public

2023-08-09 21:15

Credits

Fireblocks Research, Nikolaos Makriyannis, Oren Yomtov

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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.

The MITRE ATT&CK techniques below are AI-generated suggestions, inferred from the description of the vulnerability by the CIRCL/vulnerability-attack-technique-classification-roberta-base model, served locally by ML-Gateway. They have not been verified by an analyst and are provided for guidance only.
The approach is described in our paper Mapping CVEs to MITRE ATT&CK Techniques: A Curated Gold-Set Classifier and the Limits of LLM-Assisted Label Expansion.
Browse all ATT&CK techniques and the vulnerabilities related to each.

Related by attack behaviour

Vulnerabilities whose description is nearest to this one in the vector space of the CIRCL/vulnerability-attack-technique-biencoder model. This is a similarity search over the bi-encoder space (plain cosine), not a classification, and it has no measured accuracy.