| CVE |
Vendors |
Products |
Updated |
CVSS v3.1 |
| The Zephyr kernel validates the k_thread_join() and k_thread_abort() system calls (declared __syscall in include/zephyr/kernel.h) through thread_obj_validate() in kernel/thread.c. Its default switch branch is the access-denied path, taken when k_object_validate() returns -EPERM (the calling user thread was never granted access to the target thread object) or -EBADF (the supplied pointer is not a registered kernel object of the right type). That branch invoked K_OOPS(K_SYSCALL_VERIFY_MSG(ret, "access denied")), but K_SYSCALL_VERIFY_MSG treats a true expression as success; the non-zero error code ret therefore read as "verified OK", the kernel oops was never raised, and control fell through to CODE_UNREACHABLE.
Because k_thread_join() and k_thread_abort() are system calls, an unprivileged user-mode thread (under CONFIG_USERSPACE) can reach this denial path directly by calling either syscall on a thread object it does not own. Instead of the offending thread being cleanly terminated, execution reaches __builtin_unreachable() while running in supervisor mode inside the syscall handler.
On Clang builds CODE_UNREACHABLE emits an illegal-instruction trap, so a user thread can deterministically crash the kernel — a locally triggerable denial of service that escapes the userspace sandbox. On GCC builds the path is undefined behavior: the compiler may drop the return-value handling for thread_obj_validate(), so it can return an undefined bool; if that is false, the caller proceeds into the real k_thread_join()/k_thread_abort() implementation for a thread the user was never authorized to access, an access-control bypass.
The fix changes the verification expression to ret == 0, so a denied (non-zero) result now correctly raises K_OOPS and terminates the offending caller. |
| Missing authorization in Dynamics Business Central allows an authorized attacker to disclose information over a network. |
| Missing authorization in Windows Defender Firewall Service allows an authorized attacker to bypass a security feature locally. |
| Cross-repository IDOR in issue-dependency removal lets an attacker tamper with and comment on private repos they cannot access |
| Missing Authorization (CWE-862) in Kibana can lead to unauthorized execution of Elastic Defend response actions on managed hosts via Accessing Functionality Not Properly Constrained by ACLs (CAPEC-1). A Kibana user who holds only detection rule authoring privileges for the Elastic Security solution can associate automated endpoint response actions with a detection rule, even though the dedicated Endpoint response action privileges that govern those capabilities (host isolation, process operations, and execute operations) have not been granted to that user. When such a rule generates alerts, the associated response actions are carried out against the matching hosts. |
| Missing authorization in Microsoft Exchange Server allows an authorized attacker to bypass a security feature over a network. |
| Missing Authorization (CWE-862) in Kibana can lead to cross-space information disclosure and unauthorized data modification via Privilege Abuse (CAPEC-122). Kibana Machine Learning carries out its Elasticsearch operations with elevated internal permissions and relies on a per-request space filter to keep the machine learning data of one space separated from another. Part of the Machine Learning functionality did not apply that filter, so operations issued from one space were carried out against the machine learning data of every space in the deployment. |
| Missing Authorization (CWE-862) in Kibana can lead to information disclosure via Accessing Functionality Not Properly Constrained by ACLs (CAPEC-1). An internal Kibana data retrieval capability used by Elastic Defend endpoint response actions did not enforce the Security Solution and endpoint privileges that its user-facing equivalents require, and it retrieved data with elevated internal permissions rather than the permissions of the requesting user. As a result, an authenticated low-privileged Kibana user with no Security Solution privileges, endpoint privileges and no Elasticsearch privileges on the underlying data, could read endpoint response action records and the corresponding response content returned by managed hosts. |
| Missing authorization in Azure CycleCloud allows an authorized attacker to disclose information over a network. |
| Missing authorization in Azure CycleCloud allows an authorized attacker to elevate privileges over a network. |
| Missing authorization in Visual Studio Code allows an unauthorized attacker to execute code over a network. |
| Missing authorization in Azure SRE Agent allows an authorized attacker to elevate privileges over a network. |
| Missing authorization in Microsoft Teams allows an unauthorized attacker to elevate privileges over a network. |
| The Wizit Gateway for WooCommerce plugin for WordPress is vulnerable to Unauthenticated Arbitrary Order Cancellation in all versions up to, and including, 1.3.1. This is due to a lack of authentication and authorization checks in the 'handle_checkout_redirecturl_response' function. This makes it possible for unauthenticated attackers to cancel arbitrary WooCommerce orders by sending a crafted request with a valid order ID. |
| Missing Authorization vulnerability in merkulove Motionger for Elementor motionger-elementor allows Exploiting Incorrectly Configured Access Control Security Levels.This issue affects Motionger for Elementor: from n/a through <= 2.0.4. |
| Missing Authorization vulnerability in Onepay Sri Lanka onepay Payment Gateway For WooCommerce onepay-payment-gateway-for-woocommerce allows Exploiting Incorrectly Configured Access Control Security Levels.This issue affects onepay Payment Gateway For WooCommerce: from n/a through <= 1.1.2. |
| Missing Authorization vulnerability in wpeverest User Registration user-registration allows Exploiting Incorrectly Configured Access Control Security Levels.This issue affects User Registration: from n/a through <= 4.4.6. |
| Missing Authorization vulnerability in BoldGrid Client Invoicing by Sprout Invoices sprout-invoices allows Exploiting Incorrectly Configured Access Control Security Levels.This issue affects Client Invoicing by Sprout Invoices: from n/a through <= 20.8.1. |
| Missing Authorization vulnerability in Barry Event Rocket allows Exploiting Incorrectly Configured Access Control Security Levels. This issue affects Event Rocket: from n/a through 3.3. |
| Missing Authorization vulnerability in NotFound Bridge Core. This issue affects Bridge Core: from n/a through 3.3. |
