Sophos IPS and Application Signature Update

These release notes are for Sophos IPS and Application signature updates.

Version 18.23.32
Released on May 1, 2025

Introduction

The Release Note document for IPS and Application signature Database version 18.23.32 includes support for both, the new and the updated Signatures. The following sections describe the release in detail.

Release Information

Upgrade Applicable on: Version 18.23.31

Fixed issues, listed by ID, description, explanation and Workaround.

Appliance Model Details of Changes Module More Details
All Deployments 5 Applications 53 Application Signatures 3 Application categories Application Filter Click Here for details of changes
XGS-87, XGS-87(w), XGS-107, XGS-107(w), XGS-116, XGS-116(w), XGS-126, XGS-126(w), XGS-136, XGS-136(w), XGS-2100, XGS-2300, XGS-3100, XGS-3300, XGS-4300, XGS-4500 XG-86, XG-86(w), XG-106, XG-106(w), XG-115, XG-115(w), XG-125, XG-125(w), XG-135, XG-135(w), XG-210, XG-230, XG-310, XG-330, XG-430, XG-450 SG-105, SG-105(w), SG-115, SG-115(w), SG-125, SG-125(w), SG-135, SG-135(w), SG-210, SG-230, SG-310, SG-330, SG-430, SG-450, SG-550, SG-650 Any virtual deployment with RAM < 24GB 4 Signatures 4 Vulnerabilities 3 IPS Categories IPS Filter Click Here for details of changes
XG-550, XG-650, XG-750 XGS-5500, XGS-6500 Any virtual deployment with RAM >24GB 6 Signatures 6 Vulnerabilities 5 IPS Categories IPS Filter Click Here for details of changes

Report false positives at support@sophos.com along with the application details.

Upgrade Information

Upgrade type: Automatic

Compatibility Annotations: None

Application Signatures

The Sophos Application Filter controls the application traffic depending on the policy configured, by matching them with the Application Signatures. Application Signatures optimize the detection performance and reduces the false alarms.

The table below provides details of signatures included in this release.

This Application Filter Release include Fifty three (53) Application Signatures are updated for Five (5) Applications.

Fixed issues, listed by ID, description, explanation and Workaround.

Application Name Risk Category
Grok-X AI 1 Generative AI
Clipchamp 1 Generative AI
PlanetVPN 5 Proxy and Tunnel
TOR Proxy 5 Proxy and Tunnel
Tango 3 Social Networking

Terms Explained

Application Name: Name of the Application that can be identified by Sophos Application Filter.

Risk: Describes the level of risk for the application. The levels of risks are described in the table below.

Fixed issues, listed by ID, description, explanation and Workaround.
Risk Level Risk Criteria
1 Very Low
2 Low
3 Medium
4 High
5 Very High

Category: Identifies the category of the Application.

Note: These Application Filtering signatures support prior versions of respective application.

IPS Signatures

The Sophos Intrusion Prevention System shields the network from known attacks by matching the network traffic against the signatures in the IPS Signature Database. These signatures are developed to significantly increase detection performance and reduce the false alarms.

Applicable to: XGS-87, XGS-87(w), XGS-107, XGS-107(w), XGS-116, XGS-116(w), XGS-126, XGS-126(w), XGS-136, XGS-136(w), XGS-2100, XGS-2300, XGS-3100, XGS-3300, XGS-4300, XGS-4500, XG-86, XG-86(w), XG-106, XG-106(w), XG-115, XG-115(w), XG-125, XG-125(w), XG-135, XG-135(w), XG-210, XG-230, XG-310, XG-330, XG-430, XG-450, SG-105, SG-105(w), SG-115, SG-115(w), SG-125, SG-125(w), SG-135, SG-135(w), SG-210, SG-230, SG-310, SG-330, SG-430, SG-450, SG-550, SG-650 and Any virtual deployment with RAM < 24GB

The table below provides details of Signatures included in this release.

This IPS Release includes Four(4) Signatures to address Four(4) Vulnerabilities.

Fixed issues, listed by ID, description, explanation and Workaround.

Name CVE-ID Category Severity
INDICATOR-SHELLCODE ARM Linux reverse connect shell CVE-2022-20699 indicator-shellcode 1
SERVER-SAMBA Samba server heap memory corruption attempt CVE-2017-15275 server-samba 1
SERVER-WEBAPP Acronis Remote Command Execution Due To Use Of CVE-2023-45249 Default Password Vulnerability CVE-2023-45249 server-webapp 2
SERVER-WEBAPP CrushFTP CVE-2025-31161 Authentication Bypass CVE-2025-31161 server-webapp 1

IPS Signatures

The Sophos Intrusion Prevention System shields the network from known attacks by matching the network traffic against the signatures in the IPS Signature Database. These signatures are developed to significantly increase detection performance and reduce the false alarms.

Applicable to: XG-550, XG-650, XG-750, XGS-5500, XGS-6500 and Any virtual deployment with RAM >24GB

The table below provides details of Signatures included in this release.

This IPS Release includes Six(6) Signatures to address Six(6) Vulnerabilities.

Fixed issues, listed by ID, description, explanation and Workaround.

Name CVE-ID Category Severity
FILE-OTHER TRUFFLEHUNTER TALOS-2025-2157 attack attempt CVE-2025-20001 file-other 1
FILE-PDF TRUFFLEHUNTER TALOS-2025-2159 attack attempt file-pdf 1
SERVER-OTHER Veeam Backup and Replication xp_cmdshell invocation attempt CVE-2023-27532 server-other 2
SERVER-SAMBA Samba server heap memory corruption attempt CVE-2017-15275 server-samba 1
SERVER-WEBAPP Acronis Remote Command Execution Due To Use Of CVE-2023-45249 Default Password Vulnerability CVE-2023-45249 server-webapp 2
SERVER-WEBAPP CrushFTP CVE-2025-31161 Authentication Bypass CVE-2025-31161 server-webapp 1

Terms Explained

Name: Name of the Signature.

CVE-ID: CVE Identification Number - Common Vulnerabilities and Exposures (CVE) provides reference of CVE Identifiers for publicly known information security vulnerabilities.

Category: Class type according to threat.

Severity: Degree of severity - The levels of severity are described in the table below:

Fixed issues, listed by ID, description, explanation and Workaround.
Severity Level Severity Criteria
1 Critical
2 Major
3 Moderate
4 Minor
5 Warning
Important Notice

Sophos Technologies Pvt. Ltd. has supplied this Information believing it to be accurate and reliable at the time of printing, but is presented without warranty of any kind, expressed or implied. Users must take full responsibility for their application of any products. Sophos Technologies Pvt. Ltd. assumes no responsibility for any errors that may appear in this document. Sophos Technologies Pvt. Ltd. reserves the right, without notice to make changes in product design or specifications. Information is subject to change without notice.

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