CVE-2020-15093

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 v3 8.6 HIGH
CVSS v2.0 5.0 MEDIUM

8.6^/10

CVSS v3 : HIGH

Vector :

Exploitability : 3.9 / Impact : 4.0

Attack Vector NETWORK

Attack Complexity LOW

Privileges Required NONE

User Interaction NONE

Confidentiality Impact NONE

Integrity Impact HIGH

Availability Impact NONE

Scope CHANGED

5.0^/10

CVSS v2.0 : MEDIUM

Vector : AV:N/AC:L/Au:N/C:N/I:P/A:N

Exploitability : 10.0 / Impact : 2.9

Access Vector NETWORK

Access Complexity LOW

Authentication NONE

Confidentiality Impact NONE

Integrity Impact PARTIAL

Availability Impact NONE

References

Link	Resource
https://crates.io/crates/tough	Third Party Advisory
https://github.com/awslabs/tough/security/advisories/GHSA-5q2r-92f9-4m49	Third Party Advisory
https://github.com/theupdateframework/tuf/commit/2977188139d065ff3356c3cb4aec60c582b57e0e	Patch Third Party Advisory
https://github.com/theupdateframework/tuf/pull/974	Issue Tracking Patch Third Party Advisory

Configurations

Configuration 1 (hide)

cpe:2.3:a:amazon:tough:*:*:*:*:*:rust:*:*

History

No history.

Information

Published : 2020-07-09 19:15

Updated : 2024-02-28 17:47

NVD link : CVE-2020-15093

Mitre link : CVE-2020-15093

CVE.ORG link : CVE-2020-15093

JSON object : View

Products Affected

amazon

tough

CWE

CWE-347

Improper Verification of Cryptographic Signature

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