CVE-2021-0341 — Improper Certificate Validation in Google Android

CWE-295 — Improper Certificate Validation8 documents7 sources
Severity
7.5HIGHNVD
EPSS
1.0%
top 22.57%
CISA KEV
Not in KEV
Exploit
No known exploits
Affected products
3
Platform External OkhttpPlatform LibcoreGoogle Android
Timeline
PublishedFeb 10
Latest updateMar 14

Description

In verifyHostName of OkHostnameVerifier.java, there is a possible way to accept a certificate for the wrong domain due to improperly used crypto. This could lead to remote information disclosure with no additional execution privileges needed. User interaction is not needed for exploitation.Product: AndroidVersions: Android-8.1 Android-9 Android-10 Android-11Android ID: A-171980069

CVSS vector

CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:NExploitability: 3.9 | Impact: 3.6

Affected Packages5 packages

▶CVEListV5google/androidAndroid-8.1 Android-9 Android-10 Android-11
▶NVDgoogle/android4 versions+3
▶Androidplatform/libcore8.0:0 — 8.0:2021-02-01+4
▶Androidplatform/external_okhttp8.0:0 — 8.0:2021-02-01+4

Patches

Patch: source.android.com ↗Patch: source.android.com ↗

🔴Vulnerability Details

3
OSV
Square OkHttp can accept the wrong certificate↗2022-05-24
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GHSA
Square OkHttp can accept the wrong certificate↗2022-05-24
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OSV
CVE-2021-0341: In verifyHostName of OkHostnameVerifier↗2021-02-01
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📋Vendor Advisories

4
CISA ICS
Siemens SIMATIC↗2024-03-14
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Oracle
Oracle Oracle Fusion Middleware Risk Matrix: Centralized Thirdparty Jars (OkHttp) — CVE-2021-0341↗2024-01-15
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Red Hat
okhttp: information disclosure via improperly used cryptographic function↗2021-02-10
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Android
CVE-2021-0341: Android Security Bulletin 2021-02-01 CVE: CVE-2021-0341 Severity: HIGH Type: ID Affected AOSP versions: 8↗2021-02-01
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