8.6

CVE-2020-15093: amazon tough

CVSS: 8.6v3.1HighModified
AliasesGHSA-5q2r-92f9-4m49RUSTSEC-2020-0024
Published 09-07-2020Last modified 04-08-2024
Open JSON

Vulnerability summary

CVE-2020-15093 is a high (CVSS 8.6) vulnerability in amazon tough. EPSS estimates a 1.36% chance of exploitation in the next 30 days, higher than 71.2% of scored vulnerabilities.

Overall risk
35/100
0100
Medium · default modelHow is this calculated?
CVSS score
8.6/10
010
High · v3.1 (CVE.org)
EPSS score
1.36%
0%100%
Low · 0.00 pp in 30 days
KEVNot listedIn no KEV catalog
RansomwareNone recordedNo known use recorded
Public exploits0No public exploits recorded

Advisory lineage

Upstream 0 · Downstream 0 · Related 1
CVE-2020-6174

Timeline

  1. 09-07-2020
    PublishedVulnerability first disclosed.
  2. 04-08-2024
    Last modifiedVulnerability information updated.

Description

The tough library (Rust/crates.io) prior to version 0.7.1 does not properly verify the threshold of cryptographic signatures. It allows an attacker to duplicate a valid signature in order to circumvent TUF requiring a minimum threshold of unique signatures before the metadata is considered valid. A fix is available in version 0.7.1. CVE-2020-6174 is assigned to the same vulnerability in the TUF reference implementation.

CVSS metrics

4 scores · 3 sources · 2 versions

EPSS trend

Probability

1.36%

Chance of exploitation in the next 30 days

Percentile

71%

Versus all other CVEs

30-day change

0.00 pp

From 1.36% on 18-09-2026

18-09-202618-10-2026
EPSS score
1.36%

Known exploited

Compare KEV catalogs

Not in any of the 3 tracked catalogs.

Public exploits

0 found

No public exploits indexed.

Weaknesses

CWE · root cause

Affected systems

Amazon1 product
Awslabs1 product
Crates.Io1 product
  • tough< 0.7.1 | ≥ 0.0.0-0, < 0.7.1

3 vendors · 3 products

References

8 links