CVE intelligence and bounded remediation
CVE-2023-42136 — Paxtechnology Paydroid security vulnerability
High
CVSS 7.8
PAX Android based POS devices with PayDroid_8.1.0_Sagittarius_V11.1.50_20230614 or earlier can allow the execution of arbitrary commands with system account privilege by shell injection starting with a specific word. The attacker must have shell access to the device in order to exploit this vulnerability.
- Severity
- High
- CVSS
- 7.8 (3.1)
- Published
- 2024-01-15
- CISA KEV
- Not currently listed
- Ecosystem
- operating-system
- Weaknesses
- CWE-77, CWE-74
Affected products
- paxtechnology / paydroid
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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