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Incorrect Default Permissions in Binance tss-lib

High severity GitHub Reviewed Published Jun 29, 2021 to the GitHub Advisory Database • Updated Oct 2, 2023

Package

gomod github.com/binance-chain/tss-lib (Go)

Affected versions

< 1.2.0

Patched versions

1.2.0

Description

The keygen protocol implementation in Binance tss-lib before 1.2.0 allows attackers to generate crafted h1 and h2 parameters in order to compromise a signing round or obtain sensitive information from other parties.

Specific Go Packages Affected

github.com/binance-chain/tss-lib/ecdsa/keygen

References

Reviewed May 25, 2021
Published to the GitHub Advisory Database Jun 29, 2021
Last updated Oct 2, 2023

Severity

High

CVSS overall score

This score calculates overall vulnerability severity from 0 to 10 and is based on the Common Vulnerability Scoring System (CVSS).
/ 10

CVSS v3 base metrics

Attack vector
Network
Attack complexity
Low
Privileges required
None
User interaction
None
Scope
Changed
Confidentiality
High
Integrity
None
Availability
None

CVSS v3 base metrics

Attack vector: More severe the more the remote (logically and physically) an attacker can be in order to exploit the vulnerability.
Attack complexity: More severe for the least complex attacks.
Privileges required: More severe if no privileges are required.
User interaction: More severe when no user interaction is required.
Scope: More severe when a scope change occurs, e.g. one vulnerable component impacts resources in components beyond its security scope.
Confidentiality: More severe when loss of data confidentiality is highest, measuring the level of data access available to an unauthorized user.
Integrity: More severe when loss of data integrity is the highest, measuring the consequence of data modification possible by an unauthorized user.
Availability: More severe when the loss of impacted component availability is highest.
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:C/C:H/I:N/A:N/E:U/RL:O/RC:R

EPSS score

0.150%
(52nd percentile)

Weaknesses

CVE ID

CVE-2020-12118

GHSA ID

GHSA-399h-cmvp-qgx5

Source code

No known source code
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