RCE in Mi Redmi 4a

CVE-2018-20523

Xiaomi Stock Browser 10.2.4.g on Xiaomi Redmi Note 5 Pro devices and other Redmi Android phones allows content provider injection. In other words, a third-party application can read the user's cleartext browser history via an app.provider.query content://com.android.browser.searchhistory/searchhistory request.

Vulnerability class: Command Injection (OS Command Injection)

EPSS: 0.100 (95.1th percentile) — read the EPSS interpretation.

CVSS v3 metric

CVSS v3 base score 5.3 (Medium). Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:N/A:N.

Affected products

Weakness classification (CWE)

Public proof-of-concept exploits

References

  • cve@mitre.org (x_refsource_MISC, Broken Link, Vendor Advisory)
  • cve@mitre.org (Exploit, Third Party Advisory, x_refsource_MISC)
  • cve@mitre.org (Exploit, VDB Entry, Third Party Advisory, x_refsource_MISC)

Frequently asked questions

What is CVE-2018-20523?
CVE-2018-20523 is a medium-severity vulnerability in Mi Redmi 4a, classified under Command Injection. CVSS score: 5.3/10. Published 2019-06-07.
How severe is CVE-2018-20523?
Medium severity. CVSS v3 base score is 5.3 out of 10.
Is CVE-2018-20523 known to be exploited?
1 public proof-of-concept repositories are indexed. Not currently listed in the CISA KEV catalog.