CVE-2024-53845
ESPTouchAES CBC IV Stacking Vulnerability
Description
ESPTouch is a connection protocol for internet of things devices. In the ESPTouchV2 protocol, while there is an option to use a custom AES key, there is no option to set the IV (Initialization Vector) prior to versions 5.3.2, 5.2.4, 5.1.6, and 5.0.8. The IV is set to zero and remains constant throughout the product's lifetime. In AES/CBC mode, if the IV is not properly initialized, the encrypted output becomes deterministic, leading to potential data leakage. To address the aforementioned issues, the application generates a random IV when activating the AES key starting in versions 5.3.2, 5.2.4, 5.1.6, and 5.0.8. This IV is then transmitted along with the provision data to the provision device. The provision device has also been equipped with a parser for the AES IV. The upgrade is applicable for all applications and users of ESPTouch v2 component from ESP-IDF. As it is implemented in the ESP Wi-Fi stack, there is no workaround for the user to fix the application layer without upgrading the underlying firmware.
INFO
Published Date :
Dec. 12, 2024, 2:15 a.m.
Last Modified :
Dec. 12, 2024, 2:15 a.m.
Source :
[email protected]
Remotely Exploitable :
No
Impact Score :
Exploitability Score :
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-2024-53845.
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).
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The following list is the news that have been mention
CVE-2024-53845 vulnerability anywhere in the article.
The following table lists the changes that have been made to the
CVE-2024-53845 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.
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New CVE Received by [email protected]
Dec. 12, 2024
Action Type Old Value New Value Added Description ESPTouch is a connection protocol for internet of things devices. In the ESPTouchV2 protocol, while there is an option to use a custom AES key, there is no option to set the IV (Initialization Vector) prior to versions 5.3.2, 5.2.4, 5.1.6, and 5.0.8. The IV is set to zero and remains constant throughout the product's lifetime. In AES/CBC mode, if the IV is not properly initialized, the encrypted output becomes deterministic, leading to potential data leakage. To address the aforementioned issues, the application generates a random IV when activating the AES key starting in versions 5.3.2, 5.2.4, 5.1.6, and 5.0.8. This IV is then transmitted along with the provision data to the provision device. The provision device has also been equipped with a parser for the AES IV. The upgrade is applicable for all applications and users of ESPTouch v2 component from ESP-IDF. As it is implemented in the ESP Wi-Fi stack, there is no workaround for the user to fix the application layer without upgrading the underlying firmware. Added CVSS V4.0 AV:N/AC:L/AT:N/PR:N/UI:N/VC:H/VI:N/VA:N/SC:N/SI:N/SA:N/E:U/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:X Added CWE CWE-327 Added CWE CWE-909 Added Reference https://github.com/espressif/esp-idf/commit/4f85a2726e04b737c8646d865b44ddd837b703db Added Reference https://github.com/espressif/esp-idf/commit/8fb28dcedcc49916a5206456a3a61022d4302cd8 Added Reference https://github.com/espressif/esp-idf/commit/d47ed7d6f814e21c5bc8997ab0bc68e2360e5cb2 Added Reference https://github.com/espressif/esp-idf/commit/de69895f38d563e22228f5ba23fffa02feabc3a9 Added Reference https://github.com/espressif/esp-idf/commit/fd224e83bbf133833638b277c767be7f7cdd97c7 Added Reference https://github.com/espressif/esp-idf/security/advisories/GHSA-wm57-466g-mhrr Added Reference https://github.com/espressif/esp-idf/tree/master/components/esp_wifi Added Reference https://github.com/EspressifApp/EsptouchForAndroid/tree/master/esptouch-v2 Added Reference https://github.com/EspressifApp/EsptouchForIOS/tree/master/EspTouchDemo/ESPTouchV2
CWE - Common Weakness Enumeration
While CVE identifies
specific instances of vulnerabilities, CWE categorizes the common flaws or
weaknesses that can lead to vulnerabilities. CVE-2024-53845 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-2024-53845
weaknesses.