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Advisories

Electrum before 4.7.2 External Plugin Authorization Bypass Local Code Execution

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Severity
high
Date
Affecting

  • electrum >= 0, < 4.7.2

CWE
  • CWE-347 Improper Verification of Cryptographic Signature
CVSS
8.6
CVSS V4 Vector
CVSS:4.0/AV:L/AC:L/AT:N/PR:N/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N
Description
Electrum 4.6.0 before 4.7.2 contains an authorization bypass in the external plugin loader, which executes a plugin's __init__.py module when the plugin is marked enabled in the config file, without verifying its plugin-password signature. A rogue local process with write access to the Electrum data directory can place plugin code in the plugins/ folder and mark it enabled, causing arbitrary code execution inside the Electrum process.

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