Multiple Vulnerabilities in Adobe Products Could Allow for Arbitrary Code Execution

MS-ISAC ADVISORY NUMBER:

2024-036

DATE(S) ISSUED:

04/09/2024

OVERVIEW:

Multiple vulnerabilities have been discovered in Adobe products, the most severe of which could allow for arbitrary code execution.

  • Adobe After Effects is a digital visual effects, motion graphics, and compositing application.
  • Adobe Photoshop is a raster graphics editor.
  • Adobe Commerce is a flexible and scalable commerce platform that lets you create personalized B2B and B2C experiences.
  • Adobe InDesign is a desktop publishing and page layout designing software application.
  • Adobe Experience Manager is an all-in-one software suite used for content and asset management.
  • Adobe Media Encoder is an audio/video media processing program that allows users to convert files into other types of files.
  • Adobe Bridge is used to preview, organize, edit, and publish assets.
  • Adobe Illustrator is a vector graphics editor and design software.
  • Adobe Animate is used to create vector graphics and interactive content.
    Successful exploitation of the most severe of these vulnerabilities could allow for arbitrary code execution in the context of the logged on user. Depending on the privileges associated with the user, an attacker could then install programs; view, change, or delete data; or create new accounts with full user rights. Users whose accounts are configured to have fewer user rights on the system could be less impacted than those who operate with administrative user rights

THREAT INTELLIGENCE:

There are currently no reports of these vulnerabilities being exploited in the wild.

SYSTEMS AFFECTED:

  • Adobe After Effects 24.1 and earlier versions on Windows and macOS
  • Adobe After Effects 23.6.2 and earlier versions on Windows and macOS
  • Adobe Photoshop 2023 24.7.2 and earlier versions on Windows and macOS
  • Adobe Photoshop 2024 25.3.1 and earlier versions on Windows and macOS
  • Adobe Commerce 2.4.7beta3 and earlier versions
  • Adobe Commerce 2.4.6p4 and earlier versions
  • Adobe Commerce 2.4.5p6 and earlier versions
  • Adobe Commerce 2.4.4p7 and earlier versions
  • Adobe Commerce 2.4.3ext6 and earlier versions
  • Adobe Commerce 2.4.2ext6 and earlier versions
  • Adobe Commerce 2.4.1ext6 and earlier versions
  • Adobe Commerce 2.4.0ext6 and earlier versions
  • Adobe Commerce 2.3.7p4ext6 and earlier versions
  • Adobe Commerce Magento Open Source 2.4.7beta3 and earlier versions
  • Adobe Commerce Magento Open Source 2.4.6p4 and earlier versions
  • Adobe Commerce Magento Open Source 2.4.5p6 and earlier versions
  • Adobe Commerce Magento Open Source 2.4.4p7 and earlier versions
  • Adobe InDesign ID18.5.1 and earlier versions for Windows and macOS
  • Adobe InDesign ID19.2 and earlier versions for Windows and macOS
  • Adobe Experience Manager (AEM) AEM Cloud Service (CS)
  • Adobe Experience Manager (AEM) 6.5.19 and earlier versions
  • Adobe Media Encoder 24.2.1 and earlier versions for Windows and macOS
  • Adobe Media Encoder 23.6.4 and earlier versions for Windows and macOS
  • Adobe Bridge 13.0.6 and earlier versions for Windows and macOS
  • Adobe Bridge 14.0.2 and earlier versions for Windows and macOS
  • Adobe Illustrator 2024 28.3 and earlier versions for Windows and macOS
  • Adobe Illustrator 2023 27.9.2 and earlier versions for Windows and macOS
  • Adobe Animate 2023 23.0.4 and earlier versions for Windows and macOS
  • Adobe Animate 2024 24.0.1 and earlier versions for Windows and macOS

RISK:

Government:
Large and medium government entitiesHIGH
Small governmentMEDIUM
Businesses:
Large and medium business entitiesHIGH
Small business entitiesN/A
Home Users:
LOW

TECHNICAL SUMMARY:

Multiple vulnerabilities have been discovered in Adobe Products, the most severe of which could allow for arbitrary code execution. Details of these vulnerabilities are as follows
Tactic: Execution (TA0002)
Technique: Exploitation for Client Execution (T1203):
Adobe After Effects:

  • Out-of-bounds Read which could allow for a Memory Leak. (CVE-2024-20737)
    Adobe Photoshop:
  • Out-of-bounds Read which could allow for a Memory Leak. (CVE-2024-20770)
    Adobe Commerce:
  • Improper Input Validation which could allow for Arbitrary code execution. (CVE-2024-20758)
  • Cross-site Scripting (Stored XSS) which could allow for Arbitrary code execution. (CVE-2024-20759)
    Adobe InDesign:
  • Out-of-bounds Read which could allow for a Memory Leak. (CVE-2024-20766)
    Adobe Experience Manager:
  • Cross-site Scripting (Stored XSS) which could allow for Arbitrary code execution. (CVE-2024-26046, CVE-2024-26047, CVE-2024-26079, CVE-2024-26084, CVE-2024-26087, CVE-2024-26097, CVE-2024-26098, CVE-2024-26122, CVE-2024-20778, CVE-2024-20779, CVE-2024-20780)
  • Information Exposure which could allow for Security feature bypass. (CVE-2024-26076)
    Adobe Media Encoder:
  • Buffer Overflow which could allow for Arbitrary code execution. (CVE-2024-20772)
    Adobe Bridge:
  • Out-of-bounds Read which could allow for a Memory Leak. (CVE-2024-20771)
    Adobe Illustrator:
  • Out-of-bounds Read which could allow for a Memory Leak. (CVE-2024-20798)
    Adobe Animate:
  • Out-of-bounds Read which could allow for Arbitrary code execution. (CVE-2024-20797)
  • Integer Overflow or Wraparound which could allow for Arbitrary code execution. (CVE-2024-20795)
  • Out-of-bounds Read which could allow for a Memory Leak. (CVE-2024-20796)
  • NULL Pointer Dereference which could allow for Application denial-of-service. (CVE-2024-20794)

RECOMMENDATIONS:

We recommend the following actions be taken:

  • Apply the stable channel update provided by Adobe to vulnerable systems immediately after appropriate testing. (M1051: Update Software)
    o Safeguard 7.1 : Establish and Maintain a Vulnerability Management Process: Establish and maintain a documented vulnerability management process for enterprise assets. Review and update documentation annually, or when significant enterprise changes occur that could impact this Safeguard.
    o Safeguard 7.2 : Establish and Maintain a Remediation Process: Establish and maintain a risk-based remediation strategy documented in a remediation process, with monthly, or more frequent, reviews.
    o Safeguard 7.6 : Perform Automated Vulnerability Scans of Externally-Exposed Enterprise Assets: Perform automated vulnerability scans of externally-exposed enterprise assets using a SCAP-compliant vulnerability scanning tool. Perform scans on a monthly, or more frequent, basis.
    o Safeguard 7.7 : Remediate Detected Vulnerabilities: Remediate detected vulnerabilities in software through processes and tooling on a monthly, or more frequent, basis, based on the remediation process.
    o Safeguard 16.13 Conduct Application Penetration Testing: Conduct application penetration testing. For critical applications, authenticated penetration testing is better suited to finding business logic vulnerabilities than code scanning and automated security testing. Penetration testing relies on the skill of the tester to manually manipulate an application as an authenticated and unauthenticated user.
    o Safeguard 18.1 : Establish and Maintain a Penetration Testing Program: Establish and maintain a penetration testing program appropriate to the size, complexity, and maturity of the enterprise. Penetration testing program characteristics include scope, such as network, web application, Application Programming Interface (API), hosted services, and physical premise controls; frequency; limitations, such as acceptable hours, and excluded attack types; point of contact information; remediation, such as how findings will be routed internally; and retrospective requirements.
    o Safeguard 18.2 : Perform Periodic External Penetration Tests: Perform periodic external penetration tests based on program requirements, no less than annually. External penetration testing must include enterprise and environmental reconnaissance to detect exploitable information. Penetration testing requires specialized skills and experience and must be conducted through a qualified party. The testing may be clear box or opaque box.
    o Safeguard 18.3 : Remediate Penetration Test Findings: Remediate penetration test findings based on the enterprise’s policy for remediation scope and prioritization.

  • Apply the Principle of Least Privilege to all systems and services. Run all software as a non-privileged user (one without administrative privileges) to diminish the effects of a successful attack. (M1026: Privileged Account Management)
    o Safeguard 4.7: Manage Default Accounts on Enterprise Assets and Software: Manage default accounts on enterprise assets and software, such as root, administrator, and other pre-configured vendor accounts. Example implementations can include: disabling default accounts or making them unusable.
    o Safeguard 5.4: Restrict Administrator Privileges to Dedicated Administrator Accounts: Restrict administrator privileges to dedicated administrator accounts on enterprise assets. Conduct general computing activities, such as internet browsing, email, and productivity suite use, from the user’s primary, non-privileged account.

  • Restrict use of certain websites, block downloads/attachments, block Javascript, restrict browser extensions, etc. (M1021: Restrict Web-Based Content)
    o Safeguard 2.3: Address Unauthorized Software: Ensure that unauthorized software is either removed from use on enterprise assets or receives a documented exception. Review monthly, or more frequently.
    o Safeguard 2.7: Allowlist Authorized Scripts: Use technical controls, such as digital signatures and version control, to ensure that only authorized scripts, such as specific .ps1, .py, etc., files, are allowed to execute. Block unauthorized scripts from executing. Reassess bi-annually, or more frequently.
    o Safeguard 9.3: Maintain and Enforce Network-Based URL Filters: Enforce and update network-based URL filters to limit an enterprise asset from connecting to potentially malicious or unapproved websites. Example implementations include category-based filtering, reputation-based filtering, or through the use of block lists. Enforce filters for all enterprise assets.
    o Safeguard 9.6: Block Unnecessary File Types: Block unnecessary file types attempting to enter the enterprise’s email gateway.

  • Use capabilities to detect and block conditions that may lead to or be indicative of a software exploit occurring. (M1050: Exploit Protection)
    o Safeguard 10.5: Enable Anti-Exploitation Features: Enable anti-exploitation features on enterprise assets and software, where possible, such as Microsoft® Data Execution Prevention (DEP), Windows® Defender Exploit Guard (WDEG), or Apple® System Integrity Protection (SIP) and Gatekeeper™.

  • Block execution of code on a system through application control, and/or script blocking. (M1038: Execution Prevention)

  • Safeguard 2.5 : Allowlist Authorized Software: Use technical controls, such as application allowlisting, to ensure that only authorized software can execute or be accessed. Reassess bi-annually, or more frequently.

  • Safeguard 2.6 : Allowlist Authorized Libraries: Use technical controls to ensure that only authorized software libraries, such as specific .dll, .ocx, .so, etc., files, are allowed to load into a system process. Block unauthorized libraries from loading into a system process. Reassess bi-annually, or more frequently.

  • Safeguard 2.7 : Allowlist Authorized Scripts: Use technical controls, such as digital signatures and version control, to ensure that only authorized scripts, such as specific .ps1, .py, etc., files, are allowed to execute. Block unauthorized scripts from executing. Reassess bi-annually, or more frequently.

  • Use capabilities to prevent suspicious behavior patterns from occurring on endpoint systems. This could include suspicious process, file, API call, etc. behavior. (M1040: Behavior Prevention on Endpoint)

  • Safeguard 13.2 : Deploy a Host-Based Intrusion Detection Solution: Deploy a host-based intrusion detection solution on enterprise assets, where appropriate and/or supported.

  • Safeguard 13.7 : Deploy a Host-Based Intrusion Prevention Solution: Deploy a host-based intrusion prevention solution on enterprise assets, where appropriate and/or supported. Example implementations include use of an Endpoint Detection and Response (EDR) client or host-based IPS agent.

REFERENCES:

CVE

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