Instituto Nacional de ciberseguridad. Sección Incibe
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CVE-2013-4787

Severity CVSS v4.0:
Pending analysis
Type:
CWE-310 Cryptographic Issues
Publication date:
09/07/2013
Last modified:
11/04/2025

Description

Android 1.6 Donut through 4.2 Jelly Bean does not properly check cryptographic signatures for applications, which allows attackers to execute arbitrary code via an application package file (APK) that is modified in a way that does not violate the cryptographic signature, probably involving multiple entries in a Zip file with the same name in which one entry is validated but the other entry is installed, aka Android security bug 8219321 and the "Master Key" vulnerability.

Impact

Vector 2.0
AV:N/AC:M/Au:N/C:C/I:C/A:C CVSS v2.0 Severity and Metrics:

Base Score: 9.30 HIGH
Vector: AV:N/AC:M/Au:N/C:C/I:C/A:C

Attack Vector (AV): Network
Attack Complexity (AC): Medium
Authentication (Au): None
Confidentiality (C): Complete
Integrity (I): Complete
Availability (A): Complete

Base Score 2.0
9.30
Severity 2.0
HIGH

Vulnerable products and versions

CPE From Up to
cpe:2.3:o:google:android:1.6:*:*:*:*:*:*:*
cpe:2.3:o:google:android:2.0:*:*:*:*:*:*:*
cpe:2.3:o:google:android:2.0.1:*:*:*:*:*:*:*
cpe:2.3:o:google:android:2.1:*:*:*:*:*:*:*
cpe:2.3:o:google:android:2.2:*:*:*:*:*:*:*
cpe:2.3:o:google:android:2.2:rev1:*:*:*:*:*:*
cpe:2.3:o:google:android:2.2.1:*:*:*:*:*:*:*
cpe:2.3:o:google:android:2.2.2:*:*:*:*:*:*:*
cpe:2.3:o:google:android:2.2.3:*:*:*:*:*:*:*
cpe:2.3:o:google:android:2.3:*:*:*:*:*:*:*
cpe:2.3:o:google:android:2.3:rev1:*:*:*:*:*:*
cpe:2.3:o:google:android:2.3.1:*:*:*:*:*:*:*
cpe:2.3:o:google:android:2.3.2:*:*:*:*:*:*:*
cpe:2.3:o:google:android:2.3.3:*:*:*:*:*:*:*
cpe:2.3:o:google:android:2.3.4:*:*:*:*:*:*:*

To consult the complete list of CPE names with products and versions, see this page


References to Advisories, Solutions, and Tools