CVE intelligence and bounded remediation

CVE-2018-6353 — Electrum Electrum security vulnerability

High CVSS 7.8

The Python console in Electrum through 2.9.4 and 3.x through 3.0.5 supports arbitrary Python code without considering (1) social-engineering attacks in which a user pastes code that they do not understand and (2) code pasted by a physically proximate attacker at an unattended workstation, which makes it easier for attackers to steal Bitcoin via hook code that runs at a later time when the wallet password has been entered, a different vulnerability than CVE-2018-1000022.

Severity
High
CVSS
7.8 (3.0)
Published
2018-01-27
CISA KEV
Not currently listed
Ecosystem
python/pypi
Weaknesses
CWE-78

Affected products

  • electrum / electrum
  • electrum / electrum / 3.0.0
  • electrum / electrum / 3.0.1
  • electrum / electrum / 3.0.2
  • electrum / electrum / 3.0.3
  • electrum / electrum / 3.0.5

Matched remediation archetype

Command, code, expression, and template injection

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Check exposure

  • Trace untrusted values to process execution, interpreters, evaluators, template engines, dynamic imports, and administrative scripting features.
  • Determine whether the affected path is reachable across each trust boundary and which service account or host privilege it inherits.
  • Review configuration for optional execution features, unsafe compatibility modes, and shell invocation.

Remediate safely

  • Replace string-built commands or evaluated code with fixed operations and structured argument APIs that do not invoke a shell.
  • Use strict allowlists for operation identifiers and reject unexpected input before it reaches any interpreter.
  • Update the affected component and add inert regression tests covering metacharacters, encoding variants, and alternate request paths.

Authoritative sources

Complete CVE record and remediation plan

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