CVE Vulnerability

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.

5 /10

CVSS v2.0 :

V3 Legend

Vector :

Exploitability : 10 / Impact : 2.9

Attack Vector

Attack Complexity

Privileges Required

User Interaction

Confidentiality Impact NONE

Integrity Impact PARTIAL

Availability Impact NONE

Scope

8.6 /10

CVSS v3.0 : HIGH

V3 Legend

Vector :

Exploitability : 3.9 / Impact : 4

Attack Vector NETWORK

Attack Complexity LOW

Privileges Required NONE

User Interaction NONE

Confidentiality Impact NONE

Integrity Impact HIGH

Availability Impact NONE

Scope CHANGED

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

Configuration 1

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

Published : 2020-07-09 07:15

Updated : 2021-10-26 07:58

NVD link : CVE-2020-15093

Mitre link : CVE-2020-15093

Products Affected
No products.
CWE
CWE-347

Improper Verification of Cryptographic Signature