Vulnerability CVE-2019-2173

Vulnerability Name:

CVE-2019-2173 (CCN-168977)

Assigned:

2018-12-10

Published:

2019-10-07

Updated:

2019-10-16

Summary:

In startActivityMayWait of ActivityStarter.java, there is a possible incorrect Activity launch due to an incorrect permission check. This could lead to local escalation of privilege with no additional execution privileges needed. User interaction is not needed for exploitation.Product: AndroidVersions: Android-7.1.1 Android-7.1.2 Android-8.0 Android-8.1 Android-9Android ID: A-123013720

CVSS v3 Severity:

7.8 High (CVSS v3.1 Vector: CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H)
6.8 Medium (Temporal CVSS v3.1 Vector: CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H/E:U/RL:O/RC:C)

Exploitability Metrics:	Attack Vector (AV): Local Attack Complexity (AC): Low Privileges Required (PR): Low User Interaction (UI): None
Scope:	Scope (S): Unchanged
Impact Metrics:	Confidentiality (C): High Integrity (I): High Availibility (A): High

8.4 High (CCN CVSS v3.1 Vector: CVSS:3.1/AV:L/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H)
7.3 High (CCN Temporal CVSS v3.1 Vector: CVSS:3.1/AV:L/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H/E:U/RL:O/RC:C)

Exploitability Metrics:	Attack Vector (AV): Local Attack Complexity (AC): Low Privileges Required (PR): None User Interaction (UI): None
Scope:	Scope (S): Unchanged
Impact Metrics:	Confidentiality (C): High Integrity (I): High Availibility (A): High

CVSS v2 Severity:

4.6 Medium (CVSS v2 Vector: AV:L/AC:L/Au:N/C:P/I:P/A:P)

Exploitability Metrics:	Access Vector (AV): Local Access Complexity (AC): Low Authentication (Au): None
Impact Metrics:	Confidentiality (C): Partial Integrity (I): Partial Availibility (A): Partial

7.2 High (CCN CVSS v2 Vector: AV:L/AC:L/Au:N/C:C/I:C/A:C)

Exploitability Metrics:	Access Vector (AV): Local Access Complexity (AC): Low Athentication (Au): None
Impact Metrics:	Confidentiality (C): Complete Integrity (I): Complete Availibility (A): Complete

Vulnerability Type:

CWE-276

Vulnerability Consequences:

Gain Privileges

References:

Source: MITRE
Type: CNA
CVE-2019-2173

Source: CCN
Type: Google Web site
Android

Source: XF
Type: UNKNOWN
android-cve20192173-priv-esc(168977)

Source: CCN
Type: Android Open Source Project
Android Security Bulletin - October 2019

Source: CONFIRM
Type: Patch, Vendor Advisory
https://source.android.com/security/bulletin/2019-10-01

Vulnerable Configuration:

Configuration 1:

cpe:/o:google:android:7.1.1:*:*:*:*:*:*:*

OR cpe:/o:google:android:7.1.2:*:*:*:*:*:*:*

OR cpe:/o:google:android:8.0:*:*:*:*:*:*:*

OR cpe:/o:google:android:8.1:*:*:*:*:*:*:*

OR cpe:/o:google:android:9.0:*:*:*:*:*:*:*

Configuration CCN 1:

cpe:/o:google:android:7.1.1:*:*:*:*:*:*:*

OR cpe:/o:google:android:7.1.2:*:*:*:*:*:*:*

OR cpe:/o:google:android:8.0:*:*:*:*:*:*:*

OR cpe:/o:google:android:8.1:*:*:*:*:*:*:*

OR cpe:/o:google:android:9.0:*:*:*:*:*:*:*

Denotes that component is vulnerable

Oval Definitions

Definition ID	Class	Title	Last Modified
oval:com.ubuntu.disco:def:201921730000000	V	CVE-2019-2173 on Ubuntu 19.04 (disco) - medium.	2019-10-11
oval:com.ubuntu.bionic:def:201921730000000	V	CVE-2019-2173 on Ubuntu 18.04 LTS (bionic) - medium.	2019-10-11

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