## Duplicate Advisory
This advisory has been withdrawn because it is a duplicate of GHSA-6x36-qxmj-rv4p. This link is maintained to preserve external references.

## Original Description
.NET and Visual Studio Denial of Service Vulnerability

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1.  GitHub Advisory Database
2.  GitHub Reviewed
3.  GHSA-wmm6-pgp8-29hg

**Duplicate Advisory: .NET and Visual Studio Denial of Service Vulnerability**

High severity GitHub Reviewed Published Nov 12, 2024 to the GitHub Advisory Database • Updated Nov 12, 2024

Withdrawn This advisory was withdrawn on Nov 12, 2024

**Package**

nuget System.Formats.Nrbf (NuGet)

**Affected versions**

< 9.0.0

**Description**

Published by the National Vulnerability Database

Nov 12, 2024

Published to the GitHub Advisory Database

Nov 12, 2024

Last updated

Nov 12, 2024

GHSA-wmm6-pgp8-29hg: Duplicate Advisory: .NET and Visual Studio Denial of Service Vulnerability

A flaw was found in Ansible-Core. This vulnerability allows attackers to bypass unsafe content protections using the hostvars object to reference and execute templated content. This issue can lead to arbitrary code execution if remote data or module outputs are improperly templated within playbooks.

**Exploitability Metrics**

Attack Vector: This metric reflects the context by which vulnerability exploitation is possible. This metric value (and consequently the resulting severity) will be larger the more remote (logically, and physically) an attacker can be in order to exploit the vulnerable system. The assumption is that the number of potential attackers for a vulnerability that could be exploited from across a network is larger than the number of potential attackers that could exploit a vulnerability requiring physical access to a device, and therefore warrants a greater severity.

Attack Complexity: This metric captures measurable actions that must be taken by the attacker to actively evade or circumvent existing built-in security-enhancing conditions in order to obtain a working exploit. These are conditions whose primary purpose is to increase security and/or increase exploit engineering complexity. A vulnerability exploitable without a target-specific variable has a lower complexity than a vulnerability that would require non-trivial customization. This metric is meant to capture security mechanisms utilized by the vulnerable system.

Attack Requirements: This metric captures the prerequisite deployment and execution conditions or variables of the vulnerable system that enable the attack. These differ from security-enhancing techniques/technologies (ref Attack Complexity) as the primary purpose of these conditions is not to explicitly mitigate attacks, but rather, emerge naturally as a consequence of the deployment and execution of the vulnerable system.

Privileges Required: This metric describes the level of privileges an attacker must possess prior to successfully exploiting the vulnerability. The method by which the attacker obtains privileged credentials prior to the attack (e.g., free trial accounts), is outside the scope of this metric. Generally, self-service provisioned accounts do not constitute a privilege requirement if the attacker can grant themselves privileges as part of the attack.

User interaction: This metric captures the requirement for a human user, other than the attacker, to participate in the successful compromise of the vulnerable system. This metric determines whether the vulnerability can be exploited solely at the will of the attacker, or whether a separate user (or user-initiated process) must participate in some manner.

**Vulnerable System Impact Metrics**

Confidentiality: This metric measures the impact to the confidentiality of the information managed by the VULNERABLE SYSTEM due to a successfully exploited vulnerability. Confidentiality refers to limiting information access and disclosure to only authorized users, as well as preventing access by, or disclosure to, unauthorized ones.

Integrity: This metric measures the impact to integrity of a successfully exploited vulnerability. Integrity refers to the trustworthiness and veracity of information. Integrity of the VULNERABLE SYSTEM is impacted when an attacker makes unauthorized modification of system data. Integrity is also impacted when a system user can repudiate critical actions taken in the context of the system (e.g. due to insufficient logging).

Availability: This metric measures the impact to the availability of the VULNERABLE SYSTEM resulting from a successfully exploited vulnerability. While the Confidentiality and Integrity impact metrics apply to the loss of confidentiality or integrity of data (e.g., information, files) used by the system, this metric refers to the loss of availability of the impacted system itself, such as a networked service (e.g., web, database, email). Since availability refers to the accessibility of information resources, attacks that consume network bandwidth, processor cycles, or disk space all impact the availability of a system.

**Subsequent System Impact Metrics**

Confidentiality: This metric measures the impact to the confidentiality of the information managed by the SUBSEQUENT SYSTEM due to a successfully exploited vulnerability. Confidentiality refers to limiting information access and disclosure to only authorized users, as well as preventing access by, or disclosure to, unauthorized ones.

Integrity: This metric measures the impact to integrity of a successfully exploited vulnerability. Integrity refers to the trustworthiness and veracity of information. Integrity of the SUBSEQUENT SYSTEM is impacted when an attacker makes unauthorized modification of system data. Integrity is also impacted when a system user can repudiate critical actions taken in the context of the system (e.g. due to insufficient logging).

Availability: This metric measures the impact to the availability of the SUBSEQUENT SYSTEM resulting from a successfully exploited vulnerability. While the Confidentiality and Integrity impact metrics apply to the loss of confidentiality or integrity of data (e.g., information, files) used by the system, this metric refers to the loss of availability of the impacted system itself, such as a networked service (e.g., web, database, email). Since availability refers to the accessibility of information resources, attacks that consume network bandwidth, processor cycles, or disk space all impact the availability of a system.

GHSA-99w6-3xph-cx78: Ansible-Core vulnerable to content protections bypass

An XML External Entity (XXE) vulnerability in the component DocumentBuilderFactory of powertac-server v1.9.0 allows attackers to access sensitive information or execute arbitrary code via supplying a crafted request containing malicious XML entities.

GHSA-pgrc-8wp5-5mvq: powertac-server XML External Entity vulnerability

A flaw was found in moodle. Insufficient sanitizing of data when performing a restore could result in a cross-site scripting (XSS) risk from malicious backup files.

GHSA-4hjf-6pxr-549h: Moodle Cross-site Scripting vulnerability

A flaw was found in moodle. Insufficient capability checks make it possible for users with access to restore glossaries in courses to restore them into the global site glossary.

GHSA-4gq2-x5w4-7hp8: Moodle has insufficient capability checks

A flaw was found in moodle. External API access to Quiz can override contained insufficient access control.

GHSA-jpf2-9ppp-2c49: Moodle has insufficient access control

A flaw was found in moodle. When creating an export of site administration presets, some sensitive secrets and keys are not being excluded from the export, which could result in them unintentionally being leaked if the presets are shared with a third party.

GHSA-vpq5-56jj-vf2m: Moodle admin presets export tool includes some secrets that should not be exported

A flaw was found in moodle. The cURL wrapper in Moodle strips HTTPAUTH and USERPWD headers during emulated redirects, but retains other original request headers, so HTTP authorization header information could be unintentionally sent in requests to redirect URLs.

GHSA-7wmp-2xmx-g6h8: Moodle authorization headers preserved between "emulated redirects"

A flaw was found in moodle. Some hidden user profile fields are visible in gradebook reports, which could result in users without the "view hidden user fields" capability having access to the information.

GHSA-c767-4whh-v7rw: Moodle has user information visibility control issues in gradebook reports

A flaw was found in moodle. Matrix room membership and power levels are incorrectly applied and revoked for suspended Moodle users.

Source

ghsa