#oauth

Attackers continue to target Microsoft identities to gain access to connected Microsoft applications and federated SaaS applications. Additionally, attackers continue to progress their attacks in these environments, not by exploiting vulnerabilities, but by abusing native Microsoft functionality to achieve their objective. The attacker group Nobelium, linked with the SolarWinds attacks, has been

### Impact An attacker with sufficient client-side exploits could retrieve a valid access token for another user during the OAuth token exchange due to incorrect credential validation. The client ID must be known and the API application must have already been authorized on the targeted user account. ### Remediation - **Sentry SaaS** customers do not need to take any action. Those with the highest risk will be contacted directly by Sentry. - **Self-hosted installations** should upgrade to version 23.7.2 or higher. ### Workarounds There are no direct workarounds, but users should review applications authorized on their account (_User Settings > Authorized Applications_) and remove any that are no longer needed.

Sentry is an error tracking and performance monitoring platform. Starting in version 10.0.0 and prior to version 23.7.2, an attacker with sufficient client-side exploits could retrieve a valid access token for another user during the OAuth token exchange due to incorrect credential validation. The client ID must be known and the API application must have already been authorized on the targeted user account. Sentry SaaS customers do not need to take any action. Self-hosted installations should upgrade to version 23.7.2 or higher. There are no direct workarounds, but users should review applications authorized on their account and remove any that are no longer needed.

gRPC contains a vulnerability that allows hpack table accounting errors could lead to unwanted disconnects between clients and servers in exceptional cases/ Three vectors were found that allow the following DOS attacks: - Unbounded memory buffering in the HPACK parser - Unbounded CPU consumption in the HPACK parser The unbounded CPU consumption is down to a copy that occurred per-input-block in the parser, and because that could be unbounded due to the memory copy bug we end up with an O(n^2) parsing loop, with n selected by the client. The unbounded memory buffering bugs: - The header size limit check was behind the string reading code, so we needed to first buffer up to a 4 gigabyte string before rejecting it as longer than 8 or 16kb. - HPACK varints have an encoding quirk whereby an infinite number of 0’s can be added at the start of an integer. gRPC’s hpack parser needed to read all of them before concluding a parse. - gRPC’s metadata overflow check was performed per frame, so ...

Red Hat Security Advisory 2023-4456-01 - Red Hat OpenShift Container Platform is Red Hat's cloud computing Kubernetes application platform solution designed for on-premise or private cloud deployments. This advisory contains the container images for Red Hat OpenShift Container Platform 4.13.8. Issues addressed include an add administrator vulnerability.

Red Hat OpenShift Container Platform release 4.13.8 is now available with updates to packages and images that fix several bugs and add enhancements. This release includes a security update for Red Hat OpenShift Container Platform 4.13. Red Hat Product Security has rated this update as having a security impact of [impact]. A Common Vulnerability Scoring System (CVSS) base score, which gives a detailed severity rating, is available for each vulnerability from the CVE link(s) in the References section.This content is licensed under the Creative Commons Attribution 4.0 International License (https://creativecommons.org/licenses/by/4.0/). If you distribute this content, or a modified version of it, you must provide attribution to Red Hat Inc. and provide a link to the original. Related CVEs: * CVE-2022-41723: A flaw was found in golang. A maliciously crafted HTTP/2 stream could cause excessive CPU consumption in the HPACK decoder, sufficient to cause a denial of service from a small number...

Microsoft on Friday disclosed that it has addressed a critical security flaw impacting Power Platform, but not before it came under criticism for its failure to swiftly act on it. "The vulnerability could lead to unauthorized access to Custom Code functions used for Power Platform custom connectors," the tech giant said. "The potential impact could be unintended information disclosure if secrets

OX App Suite suffers from remote SQL injection, server-side request forgery, cross site scripting, improper neutralization, command injection, and exposure of sensitive information vulnerabilities.

In the Keyfactor EJBCA before 8.0.0, the RA web certificate distribution servlet /ejbca/ra/cert allows partial denial of service due to an authentication issue. In configurations using OAuth, disclosure of CA certificates (attributes and public keys) to unauthenticated or less privileged users may occur.

Red Hat Security Advisory 2023-4429-01 - The mod_auth_openidc is an OpenID Connect authentication module for Apache HTTP Server. It enables an Apache HTTP Server to operate as an OpenID Connect Relying Party and/or OAuth 2.0 Resource Server.