CVE-2020-15093 is a high-severity vulnerability in the tough library (Rust/crates.io) affecting Amazon Tough, where cryptographic signature thresholds are improperly verified. An attacker can duplicate valid signatures to bypass the minimum unique signature requirement for metadata validation. This flaw carries a CVSS score of 8.6 (High) due to its network-based attack vector, low complexity, and high impact on integrity, allowing an attacker to compromise the trustworthiness of metadata. While a fix is available in tough version 0.7.1, there is currently no evidence of active exploitation, public exploit code (Metasploit, Nuclei, ExploitDB), or significant community discussion surrounding this CVE.
| Vendor | Product | Version(s) | CPE |
|---|---|---|---|
< 0.7.1CPE matchmatch criteria | cpe:2.3:a:amazon:tough:*:*:*:*:*:rust:*:* |
CVSS version used by this source: 3.1
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:C/C:N/I:H/A:N
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The average CVE in this peer group has 0.1 InfoSec Media, 0.0 Vendor Blog, and 0.0 Security Researcher mentions.