9.3 High
CVSS2
Attack Vector
NETWORK
Attack Complexity
MEDIUM
Authentication
NONE
Confidentiality Impact
COMPLETE
Integrity Impact
COMPLETE
Availability Impact
COMPLETE
AV:N/AC:M/Au:N/C:C/I:C/A:C
7.5 High
AI Score
Confidence
High
0.002 Low
EPSS
Percentile
64.5%
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.
bluebox.com/corporate-blog/bluebox-uncovers-android-master-key/
review.cyanogenmod.org/#/c/45251/
www.osvdb.org/94773
www.securityfocus.com/bid/60952
www.zdnet.com/google-releases-fix-to-oems-for-blue-security-android-security-hole-7000017782/
jira.cyanogenmod.org/browse/CYAN-1602
plus.google.com/113331808607528811927/posts/GxDA6111vYy