PT-2020-19273 · Ledger · Ledger Monero App

Dušan Klinec · Published 2020-04-27 · Updated 2021-07-21 · CVE-2020-6861

Positive Technologies (AI Summary)

CVSS v3.1

5.5

Medium

Base vector

AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:N

Name of the Vulnerable Software and Affected Versions Ledger Monero app versions prior to 1.5.1

Description A flawed protocol design in the Ledger Monero app allows a local attacker to extract the master spending key by sending crafted messages to this app selected on a PIN-entered Ledger connected to a host PC.

Recommendations For versions prior to 1.5.1, update to version 1.5.1 or later to resolve the issue. As a temporary workaround, consider restricting access to the Ledger Monero app to minimize the risk of exploitation.

Exploit

Fix

Use of a Broken Cryptographic Algorithm

Weakness Enumeration

CWE-327

Related Identifiers

CVE-2020-6861

Affected Products

Ledger Monero App

References · 9

• 🔥 https://github.com/ph4r05/ledger-app-monero-1.42-vuln · Exploit
• 🔥 https://donjon.ledger.com/lsb/008 · Exploit
• 🔥 https://deadcode.me/blog/2020/04/25/Ledger-Monero-app-spend-key-extraction.html · Exploit
• https://osv.dev/vulnerability/CVE-2020-6861 · Vendor Advisory
• https://nvd.nist.gov/vuln/detail/CVE-2020-6861 · Security Note
• https://t.me/defcon_news/45347 · Telegram Post
• https://t.me/rnetsec/12157 · Telegram Post
• https://t.me/malwr/3429 · Telegram Post
• https://t.me/cvenotify/3580 · Telegram Post