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January 2024 (30)

medium advisory

Multiple Remote Management Tool Vendors on Same Host

This rule identifies Windows hosts where two or more distinct remote monitoring and management (RMM) or remote-access tool vendors are observed starting processes within the same eight-minute window, potentially indicating compromise, shadow IT, or attacker staging of redundant access.

AeroAdmin +60 remote-access-tool command-and-control rmm windows
2r
medium threat

Mustang Panda USB-Borne Tool Execution

This brief details detection of executables associated with Mustang Panda being launched from non-standard locations, potentially indicating compromise via USB or other removable media.

Splunk Enterprise +2 Mustang Panda mustang-panda usb-attack dll-sideloading
2r 3t
high advisory

n8n Credential Authorization Bypass in dynamic-node-parameters Allows Foreign API Key Replay

A credential authorization bypass vulnerability in n8n versions before 2.18.0 allows an authenticated user with access to a shared workflow to supply a foreign credential ID, causing the backend to decrypt and use that credential against attacker-controlled infrastructure, leading to API key exfiltration.

n8n credential-access authorization-bypass
2r 1t
high advisory

n8n-mcp Authenticated SSRF Vulnerability

An authenticated server-side request forgery (SSRF) vulnerability affects the webhook trigger tools and the n8n API client in n8n-mcp versions 2.18.7 to before 2.50.2, allowing attackers to make HTTP requests from the n8n-mcp host to internal services and cloud metadata endpoints, potentially leading to credential theft and internal service enumeration.

n8n-mcp ssrf n8n credential theft
2r 1t 4i
high advisory

NATS Server Pre-Authentication Denial-of-Service via Leafnode Handling

A pre-authentication denial-of-service vulnerability exists in NATS servers before versions v2.12.6 and v2.11.15, allowing a remote client connected to the leafnode port to crash the server by sending a malformed message.

NATS Server nats denial-of-service leafnode
2r 1t
critical advisory

Neko Authenticated User Privilege Escalation (CVE-2026-39386)

An authenticated user can escalate privileges to full administrative control in Neko versions 3.0.0 through 3.0.10 and 3.1.0 through 3.1.1 due to CVE-2026-39386, leading to complete compromise of the instance.

Neko privilege-escalation CVE-2026-39386 linux
2r 1t 1c
medium advisory

Netty HTTP/3 QPACK Literal Unbounded Allocation Vulnerability

A vulnerability in Netty's HTTP/3 QPACK decoder allows an attacker to cause a denial of service by sending a crafted HTTP/3 header that triggers excessive memory allocation, leading to a server crash.

netty-codec-http3 netty http3 qpack denial-of-service vulnerability
3r 1t
high advisory

Network Connections from Processes in Suspicious Windows Directories

Detection of network connections originating from processes running within suspicious Windows directories, indicating potential malware execution and command-and-control activity.

Splunk Enterprise +2 network_connection windows suspicious_location
2r 1t
medium advisory

Network Logon Provider Registry Modification

Adversaries may modify the network logon provider registry to register a rogue network logon provider module for persistence and credential access by intercepting authentication credentials in clear text during user logon.

Defender XDR +3 credential-access persistence registry-modification
2r 2t
medium advisory

New ActiveSync Allowed Device Added via PowerShell

The rule detects the use of the Exchange PowerShell cmdlet, Set-CASMailbox, to add a new ActiveSync allowed device, potentially allowing attackers to gain persistent access to sensitive email data by adding unauthorized devices.

Microsoft Defender XDR +4 exchange activesync powershell persistence
2r 3t
high advisory

New Publicly Accessible S3 Bucket Detection

This brief focuses on detecting the creation of new, publicly accessible Amazon S3 buckets, potentially indicating misconfigured security settings or malicious intent to expose data.

cloud s3 aws data-leakage
2r 1t
high advisory

Newly Observed High Severity Detection Alert in Elastic SIEM

This rule detects newly observed, low-frequency, high-severity Elastic SIEM detection alerts affecting a single agent, helping prioritize triage and response by highlighting alerts tied to specific detection rules that have not been seen previously for the host.

SIEM threat-detection higher-order-rule elastic-siem
3r
critical advisory

Nginx-UI Unauthenticated Bootstrap Takeover

Nginx-UI version 2.3.5 is vulnerable to an unauthenticated takeover via the `/api/install` endpoint during the initial setup window, allowing a remote attacker to claim administrative control of a fresh instance.

nginx-ui bootstrap-takeover unauthenticated-access initial-access
2r 1t 1i
critical advisory

Nhost Account Takeover via OAuth Email Verification Bypass

Nhost is vulnerable to account takeover due to improper OAuth email verification in Discord, Bitbucket, AzureAD, and EntraID providers, allowing attackers to merge an unverified OAuth identity into a victim's account.

Nhost oauth account-takeover
2r 1t
low advisory

No Threat Data Found

The provided document is a placeholder and does not contain any threat-related information, IOCs, or attack techniques.

informational
2r
critical advisory

NocoBase SQL Injection via Recursive Eager Loading

NocoBase versions 2.0.32 and earlier are vulnerable to SQL injection due to string concatenation in the `queryParentSQL()` function, allowing attackers with record creation permissions to inject arbitrary SQL and potentially extract sensitive information or execute commands.

NocoBase sqli cve-2026-41640 injection
2r 4t
high threat

Non-Chrome Process Accessing Chrome Login Data

This analytic identifies non-Chrome processes accessing the Chrome user data file 'login data', an SQLite database containing sensitive information like saved passwords, potentially indicating credential theft attempts.

Chrome RedLine Stealer +1 credential-access stealer
2r 1t
high advisory

Non-Chrome Process Accessing Chrome Login Data

This analytic identifies non-Chrome processes accessing the Chrome user data file 'login data', which is an SQLite database containing sensitive information like saved passwords, potentially leading to credential theft.

Chrome +3 credential-access password-stealing windows
2r 1t
high advisory

NorthStar C2 Agent Execution Detection

This brief details detection strategies for NorthStar C2 agent execution on Windows endpoints, an open-source command and control framework used for penetration testing and red teaming.

Splunk Enterprise +2 command-and-control red-teaming penetration-testing windows
2r 3t 2i
critical advisory

Note Mark OIDC Authentication Bypass via Hardcoded Password

A critical authentication bypass vulnerability in note-mark allows attackers to authenticate as any OIDC-registered user by submitting the password 'null' to the internal login endpoint due to a hardcoded bcrypt hash fallback, potentially leading to account takeover and persistent access.

note-mark authentication-bypass credential-access ghsa
2r 1t
medium advisory

Notepad++ Updater Querying Uncommon Domains

The Notepad++ updater, gup.exe, makes DNS queries to domains not part of the legitimate update infrastructure, potentially indicating updater mechanism exploitation or suspicious network activity.

Notepad++ supply-chain dns
2r 2t
high advisory

NTDS or SAM Database File Copied

Detects copy operations of the Active Directory Domain Database (ntds.dit) or Security Account Manager (SAM) files using command-line tools, potentially leading to credential access.

Windows +1 credential-access ntds sam
2r 2t
medium advisory

NullSessionPipe Registry Modification for Lateral Movement

Attackers modify the NullSessionPipe registry setting in Windows to enable anonymous access to named pipes, potentially facilitating lateral movement and unauthorized access to network resources.

M365 Defender +3 lateral-movement defense-evasion registry-modification
3r 2t
high advisory

O365 Add App Role Assignment Grant User

This analytic detects the addition of an application role assignment grant to a user in Office 365, which can indicate unauthorized privilege escalation or the assignment of sensitive roles, leading to unauthorized access within the Office 365 environment.

Office 365 +1 office365 azuread privilege-escalation
2r 1t
medium advisory

O365 Advanced Audit Disabled

The O365 Advanced Audit feature provides critical logging and insights into user and administrator activities, and this analytic detects instances where it is disabled for a specific user, potentially blinding security teams to malicious actions.

Microsoft 365 +1 o365 audit defense-evasion persistence
2r 1t
high advisory

O365 Application Available To Other Tenants

An Azure Active Directory Application is configured to allow authentication from external tenants or personal accounts, potentially leading to unauthorized access to data or capabilities.

Azure Active Directory +1 azuread o365 multitenant
2r 1t
medium threat

O365 Application Registration Owner Added

A new owner added to an O365 application registration can grant significant control, potentially leading to unauthorized data access, privilege escalation, or malicious behavior.

Azure Active Directory +1 NOBELIUM Group azuread o365 persistence
3r 1t
critical threat

O365 ApplicationImpersonation Role Assigned

Detection of the ApplicationImpersonation role being assigned in Office 365, potentially leading to unauthorized mailbox access and impersonation.

Microsoft 365 +1 NOBELIUM Group cloud o365 applicationimpersonation persistence
2r 2t
high advisory

O365 BEC Email Hiding Rule Creation

This analytic detects suspicious Office 365 mailbox rule creation, a common technique used in Business Email Compromise (BEC), by scoring rule attributes like short names, marking emails as read, and moving emails to specific folders.

Office 365 +1 bec office365 email
2r 2t
medium advisory

O365 Compliance Content Search Activity Detected

Detection of content search initiation within the Office 365 Security and Compliance Center using the SearchCreated operation, which may signal unauthorized access to sensitive organizational data such as emails and documents, potentially leading to data exfiltration and compliance breaches.

Microsoft 365 +1 o365 compliance content search data exfiltration
2r 1t