PT-2020-11795 · Google · Android

Published 2020-11-01 · Updated 2022-04-26 · CVE-2020-0454

Positive Technologies (AI Summary)

CVSS v3.1

5.5

Medium

Base vector

AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:N

Name of the Vulnerable Software and Affected Versions Android version 9

Description In the callCallbackForRequest function of ConnectivityService.java, a missing permission check could lead to a permission bypass. This issue may result in local information disclosure of the current SSID, requiring User execution privileges. No user interaction is needed for exploitation.

Recommendations For Android version 9, consider restricting access to the callCallbackForRequest function in ConnectivityService.java until a patch is available. As a temporary workaround, review and adjust permission settings to minimize the risk of exploitation. At the moment, there is no information about a newer version that contains a fix for this issue.

Exploit

Fix

Missing Authorization

Weakness Enumeration

CWE-862

Related Identifiers

ASB-A-161370134

CVE-2020-0454

Affected Products

Android

References · 10

• 🔥 https://usenix.org/system/files/sec19-reardon.pdf · Exploit
• https://nvd.nist.gov/vuln/detail/CVE-2020-0454 · Security Note
• https://osv.dev/vulnerability/CVE-2020-0454 · Vendor Advisory
• https://source.android.com/security/bulletin/2020-11-01 · Vendor Advisory
• https://osv.dev/vulnerability/ASB-A-161370134 · Vendor Advisory
• https://usenix.org/conference/usenixsecurity19/presentation/reardon · Note
• https://android.googlesource.com/platform/frameworks/base/+/5263e86850a0f8d91fa66eb491b6f9765a0291c7 · Note
• https://t.me/cvenotify/5447 · Telegram Post
• https://android.googlesource.com/platform/frameworks/base/+/20491714c2ca0a8fd789220e9a8afba3701f5113 · Note
• https://t.me/cibsecurity/16071 · Telegram Post