Issuing CNA: Chrome

This CVE was assigned by Chrome. Microsoft Edge (Chromium-based) ingests Chromium, which addresses this vulnerability. Please see Google Chrome Releases for more information.

Google is aware that an exploit for CVE-2023-3079 exists in the wild.

Why is this Chrome CVE included in the Security Update Guide?

The vulnerability assigned to this CVE is in Chromium Open Source Software (OSS) which is consumed by Microsoft Edge (Chromium-based). It is being documented in the Security Update Guide to announce that the latest version of Microsoft Edge (Chromium-based) is no longer vulnerable. Please see Security Update Guide Supports CVEs Assigned by Industry Partners for more information.

How can I see the version of the browser?

1. In your Microsoft Edge browser, click on the 3 dots (...) on the very right-hand side of the window
2. Click on Help and Feedback
3. Click on About Microsoft Edge

What is the version information for this release?

Information published.

Issuing CNA: Microsoft

According to the CVSS metric, privileges required is low (PR:L). Does the attacker need to be in an authenticated role on the Exchange Server?

Yes, the attacker must be authenticated.

How could an attacker exploit this vulnerability?

An authenticated attacker who is on the same intranet as the Exchange server can achieve remote code execution via a PowerShell remoting session.

Information published.

Issuing CNA: Microsoft

According to the CVSS metric, privileges required is low (PR:L). What does that mean for this vulnerability?

Any authenticated attacker could trigger this vulnerability. It does not require admin or other elevated privileges.

According to the CVSS metric, a successful exploitation could lead to a scope change (S:C). What does this mean for this vulnerability?

A user could be tricked into entering credentials or responding to a pop up after opening a specially crafted file or clicking on a link, typically by way of an enticement in an email or URL.

According to the CVSS metric, successful exploitation of this vulnerability could lead to some loss of integrity (I:L)? What does that mean for this vulnerability?

The user would need to access the URL of the malicious website, which could spoof the content of a legitimate website, and then click a popup displayed on that site.

According to the CVSS metric, successful exploitation of this vulnerability could lead to some loss of confidentiality (C:L)? What does that mean for this vulnerability?

Limited information from the victim's browser associated with the vulnerable URL can be sent to the attacker by the malicious code.

Information published.

Issuing CNA: Microsoft

According to the CVSS metric, the attack vector is local (AV:L). Why does the CVE title indicate that this is a remote code execution?

The word Remote in the title refers to the location of the attacker. This type of exploit is sometimes referred to as Arbitrary Code Execution (ACE). The attack itself is carried out locally.

For example, when the score indicates that the Attack Vector is Local and User Interaction is Required, this could describe an exploit in which an attacker, through social engineering, convinces a victim to download and open a specially crafted file from a website which leads to a local attack on their computer.

Information published.

Issuing CNA: Microsoft

Information published.

Issuing CNA: Microsoft

Information published.

Issuing CNA: Microsoft

According to the CVSS metric, the attack vector is local (AV:L). Why does the CVE title indicate that this is a remote code execution?

The word Remote in the title refers to the location of the attacker. This type of exploit is sometimes referred to as Arbitrary Code Execution (ACE). The attack itself is carried out locally.

For example, when the score indicates that the Attack Vector is Local and User Interaction is Required, this could describe an exploit in which an attacker, through social engineering, convinces a victim to download and open a specially crafted file from a website which leads to a local attack on their computer.

Information published.

Issuing CNA: Microsoft

According to the CVSS metric, a successful exploitation could lead to a scope change (S:C). What does this mean for this vulnerability?

This vulnerability could lead to a browser sandbox escape.

According to the CVSS metric, user interaction is required (UI:R). What interaction would the user have to do?

The user would have to click on a specially crafted URL to be compromised by the attacker.

According to the CVSS metric, successful exploitation of this vulnerability could lead to some loss of integrity (I:L)? What does that mean for this vulnerability?

Integrity is impacted as XSS allows an attacker to add their malicious script to fetch victim's sensitive info or to change DOM execution.

According to the CVSS metric, successful exploitation of this vulnerability could lead to some loss of confidentiality (C:L)? What does that mean for this vulnerability?

Limited information from the victim's browser associated with the vulnerable URL can be sent to the attacker by the malicious code.

What kind of security feature could be bypassed by successfully exploiting this vulnerability?

The permissions dialog feature could be bypassed when prompted while attempting to download.

Information published.

Issuing CNA: Microsoft

How do I get the update for a Windows App?

The Microsoft Store will automatically update affected customers.

It is possible for customers to disable automatic updates for the Microsoft Store. The Microsoft Store will not automatically install this update for those customers. You can get the update through the store by following this guide: Get updates for apps and games in Microsoft Store.

Note that Process Monitor is only available as part of an MSIX package called Sysinternals Suite.

Information published.

Issuing CNA: Microsoft

According to the CVSS metric, the attack complexity is high (AC:H). What does that mean for this vulnerability?

Successful exploitation of this vulnerability requires an attacker to take additional actions prior to exploitation to prepare the target environment.

According to the CVSS metric, user interaction is required (UI:R). What interaction would the user have to do?

The user would have to click on a specially crafted URL to be compromised by the attacker.

According to the CVSS metric, a successful exploitation could lead to a scope change (S:C). What does this mean for this vulnerability?

The vulnerability is in the web server, but the malicious scripts execute in the victim’s browser on their machine.

According to the CVSS metric, successful exploitation of this vulnerability could lead to some loss of confidentiality (C:L)? What does that mean for this vulnerability?

Information in the victim's browser associated with the vulnerable URL can be read by the malicious JavaScript code and sent to the attacker.

How do I know that I'm protected from this vulnerability?

A new PowerApp compiler (version 3.23052.16) has been rolled out world wide.

If you have an existing Canvas App you'll need to to save and republish your canvas app. Please see Save and publish canvas apps for information on this process. If you create a new Canvas App you will already be protected from this vulnerability.

Information published.

Issuing CNA: Microsoft

According to the CVSS metric, user interaction is required (UI:R). What interaction would the user have to do?

An attacker must send the user a malicious file and convince the user to open said file.

According to the CVSS metric, the attack vector is local (AV:L). Why does the CVE title indicate that this is a remote code execution?

The word Remote in the title refers to the location of the attacker. This type of exploit is sometimes referred to as Arbitrary Code Execution (ACE). The attack itself is carried out locally. This means an attacker or victim needs to execute code from the local machine to exploit the vulnerability.

Information published.

Issuing CNA: Microsoft

According to the CVSS metric, privileges required is low (PR:L). Does the attacker need to be in an authenticated role on the Exchange Server?

Yes, the attacker must be authenticated.

According to the CVSS metric, the attack vector is network (AV:N) and the user interaction is none (UI:N). What is the target used in the context of the remote code execution?

The attacker for this vulnerability could target the server accounts in an arbitrary or remote code execution. As an authenticated user, the attacker could attempt to trigger malicious code in the context of the server's account through a network call.

Information published.

Issuing CNA: Microsoft

According to the CVSS metric, user interaction is required (UI:R). What interaction would the user have to do?

An attacker must send the user a malicious file and convince the user to open said file.

According to the CVSS metric, the attack vector is local (AV:L). Why does the CVE title indicate that this is a remote code execution?

The word Remote in the title refers to the location of the attacker. This type of exploit is sometimes referred to as Arbitrary Code Execution (ACE). The attack itself is carried out locally. This means an attacker or victim needs to execute code from the local machine to exploit the vulnerability.

Information published.

Issuing CNA: Microsoft

What type of information could be disclosed by this vulnerability?

An attacker who successfully exploited this vulnerability could potentially read small portions of heap memory.

According to the CVSS metric, the attack vector is local (AV:L). Why does the CVE title indicate that this is information disclosure?

The attack itself is carried out locally. For example, when the score indicates that the Attack Vector is Local and User Interaction is Required, this could describe an exploit in which an attacker, through social engineering, convinces a victim to download and open a specially crafted file from a website which leads to a local attack on their computer which could leak data.

Information published.

Issuing CNA: Microsoft

According to the CVSS metric, user interaction is required (UI:R). What interaction would the user have to do?

Exploitation of the vulnerability requires that a user open a specially crafted file.

• In an email attack scenario, an attacker could exploit the vulnerability by sending the specially crafted file to the user and convincing the user to open the file.
• In a web-based attack scenario, an attacker could host a website (or leverage a compromised website that accepts or hosts user-provided content) containing a specially crafted file designed to exploit the vulnerability.

An attacker would have no way to force users to visit the website. Instead, an attacker would have to convince users to click a link, typically by way of an enticement in an email or instant message, and then convince them to open the specially crafted file.

According to the CVSS metric, a successful exploitation could lead to a scope change (S:C). What does this mean for this vulnerability?

This vulnerability could lead to a browser sandbox escape.

According to the CVSS metric, successful exploitation of this vulnerability could lead to loss of availability (A:H)? What does that mean for this vulnerability?

Successful exploitation of this vulnerability requires the user to click on a malicious URL or an embedded link in an email message which could lead to denial of service (DOS) or the Browser to crash.

According to the CVSS metric, successful exploitation of this vulnerability could lead to some loss of confidentiality (C:L)? What does that mean for this vulnerability?

Information in the victim's browser associated with the vulnerable URL can be read by the malicious JavaScript code and sent to the attacker.

According to the CVSS metric, successful exploitation of this vulnerability could lead to some loss of integrity (I:L)? What does that mean for this vulnerability?

The user would need to access the URL of the malicious website, which could spoof the content of a legitimate website, and then click a popup displayed on that site.

What is the version information for this release?

What privileges could be gained by an attacker who successfully exploited the vulnerability?

The attacker would gain the rights of the user that is running the affected application.

Information published.

Issuing CNA: Microsoft

Is the Preview Pane an attack vector for this vulnerability?

No, the Preview Pane is not an attack vector.

According to the CVSS metric, user interaction is required (UI:R). What interaction would the user have to do?

A user needs to be tricked into running malicious files.

Are the updates for the Microsoft Office for Mac currently available?

The security update for Microsoft Office 2019 for Mac and Microsoft Office LTSC for Mac 2021 are not immediately available. The updates will be released as soon as possible, and when they are available, customers will be notified via a revision to this CVE information.

Where can I find more information?

Please see the Microsoft 365 Insider Blog Post relating to the temporary disablement of the ability to insert SketchUp graphics (.skp files) here: SketchUp files in Office Update.

According to the CVSS metric, the attack vector is local (AV:L). Why does the CVE title indicate that this is a remote code execution?

The word Remote in the title refers to the location of the attacker. This type of exploit is sometimes referred to as Arbitrary Code Execution (ACE). The attack itself is carried out locally. This means an attacker or victim needs to execute code from the local machine to exploit the vulnerability.

Information published.

Issuing CNA: Microsoft

According to the CVSS metric, privileges required is low (PR:L). What does that mean for this vulnerability?

Any authenticated attacker could trigger this vulnerability. It does not require admin or other elevated privileges.

According to the CVSS metric, successful exploitation of this vulnerability could lead to no loss of availability (A:N)? What does that mean for this vulnerability?

An attacker cannot impact the availability of the service.

According to the CVSS metric, successful exploitation of this vulnerability could lead to total loss of confidentiality (C:H)? What does that mean for this vulnerability?

An attacker who successfully exploited the vulnerability could access data that is available for the current user. Depending on the user's authorization the attacker could collect detailed data about ADO elements such as org/proj configuration, users, groups, teams, projects, pipelines, board, or wiki. An attacker could also craft page elements to collect user secrets.

According to the CVSS metric, successful exploitation of this vulnerability could lead to some loss of integrity (I:L)? What does that mean for this vulnerability?

An attacker is able to manipulate DOM model of website adding/removing elements, with crafted script is able to do actions on ADO in current user context without user consent or awareness.

Information published.

Issuing CNA: Microsoft

According to the CVSS metrics, successful exploitation of this vulnerability could lead to minor loss of confidentiality (C:L), integrity (I:L) and availability (A:L). What does that mean for this vulnerability?

While we cannot rule out the impact to Confidentiality, Integrity, and Availability, the ability to exploit this vulnerability by itself is limited. An attacker would need to combine this with other vulnerabilities to perform an attack.

According to the CVSS metric, user interaction is required (UI:R). What interaction would the user have to do?

An attacker would have to send the victim a malicious file that the victim would have to execute.

According to the CVSS metric, privileges required is low (PR:L). What does that mean for this vulnerability?

Any authenticated attacker could trigger this vulnerability. It does not require admin or other elevated privileges.

Information published.

Issuing CNA: Microsoft

According to the CVSS metric, the attack vector is local (AV:L). Why does the CVE title indicate that this is a remote code execution?

The word Remote in the title refers to the location of the attacker. This type of exploit is sometimes referred to as Arbitrary Code Execution (ACE). The attack itself is carried out locally.

For example, when the score indicates that the Attack Vector is Local and User Interaction is Required, this could describe an exploit in which an attacker, through social engineering, convinces a victim to download and open a specially crafted file from a website which leads to a local attack on their computer.

Information published.