MS-ISAC ADVISORY NUMBER:
2023-055
DATE(S) ISSUED:
06/01/2023
OVERVIEW:
A Vulnerability has been discovered in Progress Moveit Transfer, which could allow for potential unauthorized access to the environment, escalated privileges, and remote code execution. MOVEit Transfer is a managed file transfer software that allows the enterprise to securely transfer files between business partners and customers using SFTP, SCP, and HTTP-based uploads. 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 is threat intelligence of this vulnerability being exploited in the wild.
SYSTEMS AFFECTED:
MOVEit Transfer prior to 2023.0.1
MOVEit Transfer prior to 2022.1.5
MOVEit Transfer prior to 2022.0.4
MOVEit Transfer prior to 2021.1.4
MOVEit Transfer prior to 2021.0.6
RISK:
Government:
Large and medium government entitiesHIGH
Small governmentMEDIUM
Businesses:
Large and medium business entitiesHIGH
Small business entitiesMEDIUM
Home Users:
LOW
TECHNICAL SUMMARY:
A vulnerability in MOVEit Transfer that could lead to escalated privileges and potential unauthorized access to the environment. Details of this vulnerability are as follows:Tactic: Initial Access (TA0001):Technique: Exploit Public-Facing Application (T1190):
The vulnerability is an SQL injection flaw that allows for escalated privileges and potential unauthorized access on target systems.
Rapid7 analyzed a sample webshell payload associated with successful exploitation. The webshell code would first determine if the inbound request contained a header named X-siLock-Comment, and would return a 404 "Not Found" error if the header was not populated with a specific password-like value. As of June 1, 2023, all instances of Rapid7-observed MOVEit Transfer exploitation involve the presence of the file human2.aspx in the wwwroot folder of the MOVEit install directory (human.aspx is the native aspx file used by MOVEit for the web interface).
RECOMMENDATIONS:
In addition to Progress remediation recommendations, we recommend the following actions be taken:
Ensure your MOVEit application is receiving and applying updates, definitions, and security patches and mitigations recommended by Progress. (M1051: Update Software)
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.
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.
Safeguard 7.3: Perform Automated Operating System Patch Management: Perform operating system updates on enterprise assets through automated patch management on a monthly, or more frequent, basis.
Safeguard 7.4: Perform Automated Application Patch Management: Perform application updates on enterprise assets through automated patch management on a monthly, or more frequent, basis.
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.
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.
Safeguard 12.1: Ensure Network Infrastructure is Up-to-Date: Ensure network infrastructure is kept up-to-date. Example implementations include running the latest stable release of software and/or using currently supported network-as-a-service (NaaS) offerings. Review software versions monthly, or more frequently, to verify software support.
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.
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.
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)