CVE-2023-41991
Apple Multiple Products Improper Certificate Valid - [Actively Exploited]
Description
A certificate validation issue was addressed. This issue is fixed in macOS Ventura 13.6, iOS 16.7 and iPadOS 16.7. A malicious app may be able to bypass signature validation. Apple is aware of a report that this issue may have been actively exploited against versions of iOS before iOS 16.7.
INFO
Published Date :
Sept. 21, 2023, 7:15 p.m.
Last Modified :
Nov. 29, 2024, 2:41 p.m.
Source :
[email protected]
Remotely Exploitable :
No
Impact Score :
3.6
Exploitability Score :
1.8
CISA KEV (Known Exploited Vulnerabilities)
For the benefit of the cybersecurity community and network defenders—and to help every organization better manage vulnerabilities and keep pace with threat activity—CISA maintains the authoritative source of vulnerabilities that have been exploited in the wild.
Apple iOS, iPadOS, macOS, and watchOS contain an improper certificate validation vulnerability that can allow a malicious app to bypass signature validation.
Apply mitigations per vendor instructions or discontinue use of the product if mitigations are unavailable.
https://support.apple.com/en-us/HT213926, https://support.apple.com/en-us/HT213927, https://support.apple.com/en-us/HT213928, https://support.apple.com/en-us/HT213929, https://support.apple.com/en-us/HT213931 ; https://nvd.nist.gov/vuln/detail/CVE-2023-41991
Public PoC/Exploit Available at Github
CVE-2023-41991 has a 12 public PoC/Exploit available at Github.
Go to the Public Exploits tab to see the list.
References to Advisories, Solutions, and Tools
Here, you will find a curated list of external links that provide in-depth
information, practical solutions, and valuable tools related to
CVE-2023-41991.
| URL | Resource |
|---|---|
| https://support.apple.com/en-us/HT213927 | Vendor Advisory |
| https://support.apple.com/en-us/HT213931 | Vendor Advisory |
| https://support.apple.com/en-us/HT213927 | Vendor Advisory |
| https://support.apple.com/en-us/HT213931 | Vendor Advisory |
We scan GitHub repositories to detect new proof-of-concept exploits. Following list is a collection of public exploits and proof-of-concepts, which have been published on GitHub (sorted by the most recently updated).
🔥🔥🔥微信公众号:Cydiapps🔥🔥🔥 => Cydia插件 Logos语言 开发Tweak.xm Cydia Substrate 注入dylib iOS逆向工程开发 越狱Jailbreak deb插件 - fishhook / Frida / Cycript / MachOView / IDA / Hopper Disassembler / MonkeyDev / Class-dump / Theos / Reveal / Dumpdecryptd / FLEX / 汇编Assembly / CaptainHook / lldb/LLVM/XNU/Darwin/iOS Reverse
Logos Shell Makefile Python Assembly C Objective-C Swift Perl Vim Script
None
Makefile C
TrollStore 2 (TrollHelper) - The Jailed Permasigned app installer for iOS 14.0 - 16.6.1, It help you to install any IPA file on your iPhone for FREE.
None
C Objective-C Makefile
TrollStore 二代 iOS巨魔商店V2.0 安装指南: 巨魔2代安装教程 巨魔辅助安装器 Misaka TrollSpeed 状态栏网速显示
C library for manipulating MachO/FAT files and their code signatures
C Makefile C++
Asynchronous python wrapper for CVE/CPE data
cpe cve nist nvd security-tools vulnerability-research
Python
Digital Forensics and Incident Response (DFIR)
investigator babko backdoor honeypot criminal darknet forensics encrochat omerta interception government-hacking police-hacking rasterfahndung online-durchsuchungen technocolonialism zeroday-feature equipment-interference technical-capability-notice network-investigative-technique due-diligence
HTML Shell YARA
Collection of Solutions for Debian GNU/Linux End Users
debian hardening security anticensorship freedom hashcheck secure-boot dkms shim encryption keyfile openssl sbsigntool mokutil sign-file grub postmodernism
Shell Python HTML Vim Script TeX CSS PowerShell Dockerfile JavaScript Makefile
Open-source cross-platform iOS app sideloader (yep, even Linux is supported). Alternative to Sideloadly, AltServer, SideServer, Cydia Impactor, iOS App Signer…
codesign d dlang gtk gtk4 gui ios ios-signer-service linux macos sideload sideloader sideloading sideloading-ipas windows cli cross-platform qt
D C Swift
Ostorlab KEV: One-command to detect most remotely known exploitable vulnerabilities. Sourced from CISA KEV, Google's Tsunami, Ostorlab's Asteroid and Bug Bounty programs.
cisa-kev vulnerability 0day cisa exploits
🔥🔥🔥微信公众号:Cydiapps🔥🔥🔥 => Cydia插件 Logos语言 开发Tweak.xm Cydia Substrate 注入dylib iOS逆向工程开发 越狱Jailbreak deb插件 - fishhook / Frida / iOSOpenDev / Cycript / MachOView / IDA / Hopper Disassembler / MonkeyDev / Class-dump / Theos / Reveal / Dumpdecryptd / FLEX / 汇编Assembly / CaptainHook / lldb/LLVM/XNU/Darwin/iOS Reverse
cydia cydiasubstrate class-dump theos iosopendev monkeydev iosre tweak logos ida mach-o mach deb dpkg-deb captainhook dyld dylib fishhook ios objective-c
Python Shell Makefile Logos Swift C++ HTML JavaScript Rich Text Format Assembly
Results are limited to the first 15 repositories due to potential performance issues.
The following list is the news that have been mention
CVE-2023-41991 vulnerability anywhere in the article.
-
BleepingComputer
Apple fixes two zero-days used in attacks on Intel-based Macs
Apple released emergency security updates to fix two zero-day vulnerabilities that were exploited in attacks on Intel-based Mac systems. "Apple is aware of a report that this issue may have been explo ... Read more
-
Help Net Security
Midnight Blizzard delivered iOS, Chrome exploits via compromised government websites
Suspected Russian hackers have been hitting iPhone and Android users visiting government websites with exploits first leveraged by commercial surveillance vendors, Google TAG researchers shared. The w ... Read more
The following table lists the changes that have been made to the
CVE-2023-41991 vulnerability over time.
Vulnerability history details can be useful for understanding the evolution of a vulnerability, and for identifying the most recent changes that may impact the vulnerability's severity, exploitability, or other characteristics.
-
Modified Analysis by [email protected]
Nov. 29, 2024
Action Type Old Value New Value Changed Reference Type https://support.apple.com/en-us/HT213927 Release Notes, Vendor Advisory https://support.apple.com/en-us/HT213927 Vendor Advisory Changed Reference Type https://support.apple.com/en-us/HT213927 Release Notes, Vendor Advisory https://support.apple.com/en-us/HT213927 Vendor Advisory Changed Reference Type https://support.apple.com/en-us/HT213931 Release Notes, Vendor Advisory https://support.apple.com/en-us/HT213931 Vendor Advisory Changed Reference Type https://support.apple.com/en-us/HT213931 Release Notes, Vendor Advisory https://support.apple.com/en-us/HT213931 Vendor Advisory -
CVE Modified by af854a3a-2127-422b-91ae-364da2661108
Nov. 21, 2024
Action Type Old Value New Value Added Reference https://support.apple.com/en-us/HT213927 Added Reference https://support.apple.com/en-us/HT213931 -
Modified Analysis by [email protected]
Jun. 21, 2024
Action Type Old Value New Value -
CVE Modified by [email protected]
May. 14, 2024
Action Type Old Value New Value -
CVE Modified by [email protected]
Jan. 10, 2024
Action Type Old Value New Value Removed Reference Apple Inc. http://seclists.org/fulldisclosure/2023/Oct/5 Removed Reference Apple Inc. http://seclists.org/fulldisclosure/2023/Oct/4 -
CVE Modified by [email protected]
Nov. 07, 2023
Action Type Old Value New Value Added Reference Apple Inc. http://seclists.org/fulldisclosure/2023/Oct/4 [No types assigned] -
Reanalysis by [email protected]
Oct. 24, 2023
Action Type Old Value New Value Changed CPE Configuration OR *cpe:2.3:o:apple:ipados:*:*:*:*:*:*:*:* versions up to (excluding) 16.7 *cpe:2.3:o:apple:iphone_os:*:*:*:*:*:*:*:* versions up to (excluding) 16.7 *cpe:2.3:o:apple:macos:*:*:*:*:*:*:*:* versions from (including) 13.0 up to (excluding) 13.6 OR *cpe:2.3:o:apple:ipados:*:*:*:*:*:*:*:* versions up to (excluding) 16.7 *cpe:2.3:o:apple:ipados:17.0:*:*:*:*:*:*:* *cpe:2.3:o:apple:iphone_os:*:*:*:*:*:*:*:* versions up to (excluding) 16.7 *cpe:2.3:o:apple:iphone_os:17.0:*:*:*:*:*:*:* *cpe:2.3:o:apple:macos:*:*:*:*:*:*:*:* versions from (including) 13.0 up to (excluding) 13.6 -
Modified Analysis by [email protected]
Oct. 12, 2023
Action Type Old Value New Value Changed Reference Type http://seclists.org/fulldisclosure/2023/Oct/5 No Types Assigned http://seclists.org/fulldisclosure/2023/Oct/5 Mailing List, Third Party Advisory Changed Reference Type https://support.apple.com/en-us/HT213927 Vendor Advisory https://support.apple.com/en-us/HT213927 Release Notes, Vendor Advisory Changed Reference Type https://support.apple.com/en-us/HT213931 Vendor Advisory https://support.apple.com/en-us/HT213931 Release Notes, Vendor Advisory Changed CPE Configuration OR *cpe:2.3:o:apple:ipad_os:*:*:*:*:*:*:*:* versions up to (excluding) 16.7 *cpe:2.3:o:apple:ipad_os:17.0:*:*:*:*:*:*:* *cpe:2.3:o:apple:iphone_os:*:*:*:*:*:*:*:* versions up to (excluding) 16.7 *cpe:2.3:o:apple:iphone_os:17.0:*:*:*:*:*:*:* *cpe:2.3:o:apple:macos:*:*:*:*:*:*:*:* versions from (including) 13.0 up to (excluding) 13.6 *cpe:2.3:o:apple:watchos:*:*:*:*:*:*:*:* versions up to (excluding) 9.6.3 *cpe:2.3:o:apple:watchos:10.0.0:*:*:*:*:*:*:* OR *cpe:2.3:o:apple:ipados:*:*:*:*:*:*:*:* versions up to (excluding) 16.7 *cpe:2.3:o:apple:iphone_os:*:*:*:*:*:*:*:* versions up to (excluding) 16.7 *cpe:2.3:o:apple:macos:*:*:*:*:*:*:*:* versions from (including) 13.0 up to (excluding) 13.6 -
CVE Modified by [email protected]
Oct. 03, 2023
Action Type Old Value New Value Added Reference http://seclists.org/fulldisclosure/2023/Oct/5 [No Types Assigned] -
CVE Modified by [email protected]
Sep. 27, 2023
Action Type Old Value New Value Changed Description A certificate validation issue was addressed. This issue is fixed in iOS 16.7 and iPadOS 16.7, OS 17.0.1 and iPadOS 17.0.1, watchOS 9.6.3, macOS Ventura 13.6, watchOS 10.0.1. A malicious app may be able to bypass signature validation. Apple is aware of a report that this issue may have been actively exploited against versions of iOS before iOS 16.7. A certificate validation issue was addressed. This issue is fixed in macOS Ventura 13.6, iOS 16.7 and iPadOS 16.7. A malicious app may be able to bypass signature validation. Apple is aware of a report that this issue may have been actively exploited against versions of iOS before iOS 16.7. Removed Reference http://seclists.org/fulldisclosure/2023/Sep/14 [Third Party Advisory] Removed Reference http://seclists.org/fulldisclosure/2023/Sep/15 [Third Party Advisory] Removed Reference http://seclists.org/fulldisclosure/2023/Sep/16 [Third Party Advisory] Removed Reference http://seclists.org/fulldisclosure/2023/Sep/17 [Third Party Advisory] Removed Reference http://seclists.org/fulldisclosure/2023/Sep/19 [Third Party Advisory] Removed Reference https://support.apple.com/en-us/HT213926 [Vendor Advisory] Removed Reference https://support.apple.com/en-us/HT213928 [Vendor Advisory] Removed Reference https://support.apple.com/en-us/HT213929 [Vendor Advisory] Removed Reference https://support.apple.com/kb/HT213926 [Vendor Advisory] -
Initial Analysis by [email protected]
Sep. 25, 2023
Action Type Old Value New Value Added CVSS V3.1 NIST AV:L/AC:L/PR:N/UI:R/S:U/C:N/I:H/A:N Changed Reference Type http://seclists.org/fulldisclosure/2023/Sep/14 No Types Assigned http://seclists.org/fulldisclosure/2023/Sep/14 Third Party Advisory Changed Reference Type http://seclists.org/fulldisclosure/2023/Sep/15 No Types Assigned http://seclists.org/fulldisclosure/2023/Sep/15 Third Party Advisory Changed Reference Type http://seclists.org/fulldisclosure/2023/Sep/16 No Types Assigned http://seclists.org/fulldisclosure/2023/Sep/16 Third Party Advisory Changed Reference Type http://seclists.org/fulldisclosure/2023/Sep/17 No Types Assigned http://seclists.org/fulldisclosure/2023/Sep/17 Third Party Advisory Changed Reference Type http://seclists.org/fulldisclosure/2023/Sep/19 No Types Assigned http://seclists.org/fulldisclosure/2023/Sep/19 Third Party Advisory Changed Reference Type https://support.apple.com/en-us/HT213926 No Types Assigned https://support.apple.com/en-us/HT213926 Vendor Advisory Changed Reference Type https://support.apple.com/en-us/HT213927 No Types Assigned https://support.apple.com/en-us/HT213927 Vendor Advisory Changed Reference Type https://support.apple.com/en-us/HT213928 No Types Assigned https://support.apple.com/en-us/HT213928 Vendor Advisory Changed Reference Type https://support.apple.com/en-us/HT213929 No Types Assigned https://support.apple.com/en-us/HT213929 Vendor Advisory Changed Reference Type https://support.apple.com/en-us/HT213931 No Types Assigned https://support.apple.com/en-us/HT213931 Vendor Advisory Changed Reference Type https://support.apple.com/kb/HT213926 No Types Assigned https://support.apple.com/kb/HT213926 Vendor Advisory Added CWE NIST CWE-295 Added CPE Configuration OR *cpe:2.3:o:apple:ipad_os:*:*:*:*:*:*:*:* versions up to (excluding) 16.7 *cpe:2.3:o:apple:ipad_os:17.0:*:*:*:*:*:*:* *cpe:2.3:o:apple:iphone_os:*:*:*:*:*:*:*:* versions up to (excluding) 16.7 *cpe:2.3:o:apple:iphone_os:17.0:*:*:*:*:*:*:* *cpe:2.3:o:apple:macos:*:*:*:*:*:*:*:* versions from (including) 13.0 up to (excluding) 13.6 *cpe:2.3:o:apple:watchos:*:*:*:*:*:*:*:* versions up to (excluding) 9.6.3 *cpe:2.3:o:apple:watchos:10.0.0:*:*:*:*:*:*:* -
CVE Modified by [email protected]
Sep. 23, 2023
Action Type Old Value New Value Added Reference http://seclists.org/fulldisclosure/2023/Sep/19 [No Types Assigned] Added Reference http://seclists.org/fulldisclosure/2023/Sep/17 [No Types Assigned] Added Reference http://seclists.org/fulldisclosure/2023/Sep/16 [No Types Assigned] Added Reference http://seclists.org/fulldisclosure/2023/Sep/15 [No Types Assigned] Added Reference http://seclists.org/fulldisclosure/2023/Sep/14 [No Types Assigned] -
CVE Modified by [email protected]
Sep. 21, 2023
Action Type Old Value New Value Added Reference https://support.apple.com/kb/HT213926 [No Types Assigned]
CWE - Common Weakness Enumeration
While CVE identifies
specific instances of vulnerabilities, CWE categorizes the common flaws or
weaknesses that can lead to vulnerabilities. CVE-2023-41991 is
associated with the following CWEs:
Common Attack Pattern Enumeration and Classification (CAPEC)
Common Attack Pattern Enumeration and Classification
(CAPEC)
stores attack patterns, which are descriptions of the common attributes and
approaches employed by adversaries to exploit the CVE-2023-41991
weaknesses.
Exploit Prediction
EPSS is a daily estimate of the probability of exploitation activity being observed over the next 30 days.
1.73 }} 0.53%
score
0.87558
percentile