Virus Removal

Serial number:AV25-406
Date: July 8, 2025

Updated: July 18, 2025

On July 8, 2025, Fortinet published security advisories to address vulnerabilities in multiple products. Included were updates for the following:

• FortiAnalyzer – multiple versions
• FortiAnalyzer Cloud – multiple versions
• FortiIsolator – multiple versions
• FortiManager – multiple versions
• FortiManager Cloud – multiple versions
• FortiOS 7.6 – versions 7.6.0 to 7.6.1
• FortiOS 7.4 – versions 7.4.0 to 7.4.7
• FortiOS 7.2 – versions 7.2.0 to 7.2.11
• FortiOS 7.0 – versions 7.0.1 to 7.0.16
• FortiProxy 7.6 – versions 7.6.0 to 7.6.1
• FortiProxy 7.4 – versions 7.4.0 to 7.4.8
• FortiProxy 7.2 – versions 7.2.0 to 7.2.13
• FortiProxy 7.0 – versions 7.0.0 to 7.0.20
• FortiSandbox – multiple versions
• FortiVoice 6.4 – versions 6.4.0 to 6.4.10
• FortiVoice 7.0 – versions 7.0.0 to 7.0.6
• FortiVoice 7.2 – versions 7.2.0
• FortiWeb – multiple versions

Update 2

On July 18, 2025, CISA added CVE-2025-25257 to their Known Exploited Vulnerabilities (KEV) Catalog.

On July 18, 2025, Fortinet updated their advisory to indicate that this vulnerability has been exploited.

• Known Exploited Vulnerabilities Catalog
• Fortinet PSIRT Advisories

Update 1

CVE-2025-25257: Unauthenticated SQL injection in GUI affecting:

• FortiWeb 7.6 – versions 7.6.0 to 7.6.3
• FortiWeb 7.4 – versions 7.4.0 to 7.4.7
• FortiWeb 7.2 – versions 7.2.0 to 7.2.10
• FortiWeb 7.0 – versions 7.0.0 to 7.0.10

• Fortinet PSIRT – FG-IR-25-151
   

  The Cyber Centre encourages users and administrators to review the provided web link and apply the necessary updates.

  • Fortinet PSIRT Advisories

Serial number:AV25-431
Date:July 18, 2025

On July 15, 2025, Nodejs published security advisories to address vulnerabilities in the following products:

• Node.js 20 – versions prior to v20.19.4
• Node.js 22 – versions prior to v22.17.1
• Node.js 24 – versions prior to v24.4.1

Open-source reporting has indicated that proof-of-concept exploit code is available for the vulnerability CVE-2025-27210.

The Cyber Centre encourages users and administrators to review the provided web link and apply the necessary updates.

• Nodejs - Tuesday, July 15, 2025 Security Releases

Number: AL25-008
Date: June 26, 2025
Updated: July 17, 2025

Audience

This Alert is intended for IT professionals and managers of notified organizations.

Purpose

An Alert is used to raise awareness of a recently identified cyber threat that may impact cyber information assets, and to provide additional detection and mitigation advice to recipients. The Canadian Centre for Cyber Security ("Cyber Centre") is also available to provide additional assistance regarding the content of this Alert to recipients as requested.

Details

On June 17 and 25, 2025, Citrix published security advisories for critical vulnerabilities, CVE-2025-5349, CVE-2025-5777 and CVE-2025-6543, affecting the following products^{Footnote1Footnote2}:

• NetScaler ADC 12.1-FIPS – versions prior to 12.1-55.328-FIPS
• NetScaler ADC and NetScaler Gateway 14.1 – versions prior to 14.1-47.46
• NetScaler ADC and NetScaler Gateway 13.1 – versions prior to 13.1-59.19
• NetScaler ADC 13.1-FIPS and NDcPP – versions prior to 13.1-37.236-FIPS and NDcPP

NetScaler ADC and NetScaler Gateway versions 12.1 and 13.0 are now End-Of-Life (EOL) and are no longer supported.

For CVE-2025-5777 and CVE-2025-6543: NetScaler must be configured as Gateway (VPN virtual server, ICA Proxy, CVPN, RDP Proxy) or AAA virtual server for these vulnerabilities to be exploited.

For CVE-2025-5349: An improper access control configured on NetScaler management interface would lead to an access to NSIP, to Cluster Management IP and to local GSLB Site IP.

Citrix reports that exploitation of CVE-2025-6543 against unmitigated appliances has been observed. In response to these vulnerabilities, the Cyber Centre released AV25-350 on June 17^Footnote3 and AV25-374 on June 25, 2025^Footnote4.

The Cyber Centre is aware of online interest and speculation about these vulnerabilities and is publishing this Alert out of an abundance of caution.

Update 1

The Cyber Centre has observed scanning by threat actors for CVE-2025-5777 and has received reports that it is being actively exploited ^Footnote6. Organizations should be aware that patching does not necessarily remove access to their system from threat actors who compromised the device while it was still vulnerable. The Cyber Centre recommends organizations complete a threat hunting exercise using the potential indicators of compromise below regardless of whether you have patched for the mentioned vulnerabilities or not.

Potential Indicators of Compromise

The following indicators of compromise (IoCs) have been shared by the cyber security research community as a starting point for compromise detection.

• Depending on logging configurations, log entries with non-printable characters are a pretty good indicator that something is amiss ^Footnote7.
• The Citrix advisory recommends terminating existing ICA and PCoIP sessions, which leads us to believe that endpoints related to those features are being targeted. Entries for those logs may similarly contain contents of leaked memory, which may or may not include session tokens ^Footnote7.
• Auditing active sessions is also recommended. As an example, a single session being used from multiple client IP addresses could be an indicator that the session may have been compromised ^Footnote7.
  • Active sessions for NetScaler Gateway can be found in the WebUI via “NetScaler Gateway -> Active User Sessions -> Select applicable context -> Continue”
  • Session information can also be viewed on the command line by running commands such as “show sessions” or “show <service> session”
• In Netscaler logs, look for:
  • Repeated POST requests to *doAuthentication* which will each yield 126 bytes of RAM.
  • Requests to doAuthentication.do with “Content-Length: 5”.
  • Lines with *LOGOFF* and user = “*#*” (i.e. # symbol in the username)
• Monitor entries for endpoint logs for contents of leaked memory, which may or may not include session tokens.
• Monitor for the creation of new user accounts, dumping or modifying configuration files, and the installation of Remote Access Tools (RATs)

Suggested actions

The Cyber Centre strongly recommends that organizations using Citrix NetScaler ADC and NetScaler Gateway appliances review the Citrix security bulletins^{Footnote1Footnote2} and update or upgrade the affected systems to the following versions:

• NetScaler ADC and NetScaler Gateway 14.1-47.46 and later.
• NetScaler ADC and NetScaler Gateway 13.1-59.19 and later releases of 13.1.
• NetScaler ADC 13.1-FIPS and 13.1-NDcPP 13.1-37.236 and later releases of 13.1-FIPS and 13.1-NDcPP.

Update 2

The Cyber Centre recommends:

• That administrators review logs going back to the beginning of June 2025.
• As a precaution, all users who logged into Citrix Netscaler since the beginning of the month of June should reset their credentials and that all active user sessions should be invalidated.
• An IOC shell script is being provided by Citrix Support Services and can be run to help determine if organizations are potentially compromised. Please request the IOC Shell Script from Citrix Support line by opening a Severity 2 ticket through your Citrix support portal.
• That administrators should follow recommended next steps as highlighted in the referenced DoublePulsar article^Footnote9.

Update 1

Citrix has provided the steps to take if NetScaler ADC is suspected to be compromised ^Footnote8, which includes:

• Preserve evidence.
• If possible, avoid switching off the machine in order to preserve the traces needed for investigations.
• Completely isolate the machine concerned from the network, both from the Internet and from the internal network, in order to limit the risk of further unauthorized access and lateral movement.
• Revoke credentials and access.
• Examine all servers and systems to which the NetScaler ADC has connected for signs of compromise.
• Rebuild and restore.
• Rotate restored secrets.
• Harden the device.

In addition, the Cyber Centre strongly recommends that organizations review and implement the Cyber Centre’s Top 10 IT Security Actions^Footnote5.

If activity matching the content of this alert is discovered, recipients are encouraged to report via the My Cyber Portal, or email contact@cyber.gc.ca.

References

Serial number:AV25-430
Date:July 17, 2025

On July 16, 2025, Microsoft published a security update to address a vulnerability in the following product:

• Microsoft Edge Stable Channel – versions prior to 138.0.3351.95

Google is aware that an exploit for CVE-2025-6558 exists in the wild.

The Cyber Centre encourages users and administrators to review the provided web link and apply the necessary updates.

• Microsoft Edge Stable Channel Release Notes

Serial number:AV25-429
Date:July 17, 2025

On July 16, 2025, HPE published security advisories to address vulnerabilities in the following products:

• HPE Telco Service Orchestrator – versions prior to v4.2.4
• HPE AutoPass License Server – versions prior to 9.18

The Cyber Centre encourages users and administrators to review the provided web links and apply the necessary updates.

• HPESBNW04900 rev.1 - HPE Telco Service Orchestrator Software, Remote Denial of Service (DoS)
• HPESBGN04877 rev.1 - HPE AutoPass License Server (APLS), Multiple Vulnerabilities
• HPE Security Bulletin Library

Serial number:AV25-428
Date:July 16, 2025

On July 16, 2025, Cisco published security advisories to address vulnerabilities in the following products:

• Cisco Unified Intelligence Center – versions 12.5, 12.6 and 15
• Cisco Unified CCX – versions prior to 12.5(1)SU3
• Cisco Identity Services Engine (ISE) – versions prior to 3.2, versions 3.3 and 3.4
• Cisco ISE Passive Identity Connector (ISE-PIC) – versions prior to 3.2, versions 3.3 and 3.4
• Cisco Evolved Programmable Network Manager (EPNM) – versions prior to 7.1, versions 8.0 and 8.1
• Cisco Prime Infrastructure – versions prior to 3.9 and version 3.10

The Cyber Centre encourages users and administrators to review the provided web links, perform the suggested mitigations and apply the necessary updates if available.

• Cisco Unified Intelligence Center Arbitrary File Upload Vulnerability
• Cisco Identity Services Engine Authenticated Remote Code Execution and Authorization Bypass Vulnerabilities
• Cisco Prime Infrastructure and Evolved Programmable Network Manager Blind SQL Injection Vulnerability
• Cisco Unified Intelligence Center Server-Side Request Forgery Vulnerability
• Cisco Security Advisories