Vulnerability Details : CVE-2016-4656
Public exploit exists!
The kernel in Apple iOS before 9.3.5 allows attackers to execute arbitrary code in a privileged context or cause a denial of service (memory corruption) via a crafted app.
Vulnerability category: Memory CorruptionExecute codeDenial of service
CVE-2016-4656 is in the CISA Known Exploited Vulnerabilities Catalog
CISA vulnerability name:
Apple iOS Memory Corruption Vulnerability
CISA required action:
Apply updates per vendor instructions.
CISA description:
A memory corruption vulnerability in Apple iOS kernel allows attackers to execute code in a privileged context or cause a denial-of-service (DoS) via a crafted application.
Added on
2022-05-24
Action due date
2022-06-14
Exploit prediction scoring system (EPSS) score for CVE-2016-4656
Probability of exploitation activity in the next 30 days: 0.59%
Percentile, the proportion of vulnerabilities that are scored at or less: ~ 78 % EPSS Score History EPSS FAQ
Metasploit modules for CVE-2016-4656
-
WebKit not_number defineProperties UAF
Disclosure Date: 2016-08-25First seen: 2020-04-26exploit/apple_ios/browser/webkit_tridentThis module exploits a UAF vulnerability in WebKit's JavaScriptCore library. Authors: - qwertyoruiop - siguza - tihmstar - benjamin-42 - timwr
CVSS scores for CVE-2016-4656
Base Score | Base Severity | CVSS Vector | Exploitability Score | Impact Score | Score Source |
---|---|---|---|---|---|
9.3
|
HIGH | AV:N/AC:M/Au:N/C:C/I:C/A:C |
8.6
|
10.0
|
NIST |
7.8
|
HIGH | CVSS:3.0/AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H |
1.8
|
5.9
|
NIST |
CWE ids for CVE-2016-4656
-
Assigned by: nvd@nist.gov (Primary)
References for CVE-2016-4656
-
http://lists.apple.com/archives/security-announce/2016/Aug/msg00000.html
Apple - Lists.apple.comMailing List;Vendor Advisory
-
https://www.exploit-db.com/exploits/44836/
WebKit - not_number defineProperties UAF (Metasploit)
-
http://www.securitytracker.com/id/1036694
Apple iOS WebKit Flaws Let Remote Users Execute Arbitrary Code and Applications Obtain Kernel Memory Contents and Gain Elevated Privileges - SecurityTracker
-
https://blog.lookout.com/blog/2016/08/25/trident-pegasus/
Sophisticated, persistent mobile attack against high-value targets on iOS
-
https://support.apple.com/HT207107
About the security content of iOS 9.3.5 - Apple SupportVendor Advisory
-
http://www.securityfocus.com/bid/92652
Apple iOS CVE-2016-4656 Memory Corruption Vulnerability
Products affected by CVE-2016-4656
- cpe:2.3:o:apple:iphone_os:*:*:*:*:*:*:*:*