I recently worked on a project focused on log anomaly detection using manageable machine learning pipelines. The pipelines mainly include data collection --- feature extraction --- feature engineering --- detection/prediction --- updating (maintenance). It’s important to have a solid UI to manage the pipelines so I can easily review the chain of pipelines. After much research, I found many engineers recommended Airflow. In airflow, the core concept is the Directed Acyclic Graph (DAG). Through the implementation, I have confirmed that this is a truly powerful tool to manage the machine learning pipelines, instead of relying on shell scripts. But, I did encounter some challenges during the process and also, fortunately, found solutions for them. The challenges can be split into two main aspects, pipeline management and dynamic generation for tasks. Pipeline...
JUMPSEC LABS
The JUMPSEC Lab is a place where the the technical team get creative and showcase their latest security research, publications, interesting news and general thoughts! We love what we do and are passionate about security, with some great upcoming projects planned, bookmark our site and stick around to see what we are working on.
(ZOHO) ManageEngine Desktop Central – Path Traversal / Arbitrary File Write
Software: Zoho ManageEngine Desktop CentralAffected Versions: Before 10.0.662Vendor page:...
(ZOHO) ManageEngine Desktop Central – SQL Injection / Arbitrary File Write
Software: Zoho ManageEngine Desktop CentralAffected Versions: Before 10.0.662Vendor page:...
Overcoming Issues Using Custom Python Scripts with Burp Suite Professional
Summary / TL:DR I recently encountered some issues when using Burp Suite Professional which led me to playing around with the Python Scripter extension. The extension allows running custom Python scripts on every request/response processed by Burp, including those generated by functionality such as Burp's active scanner. This has a number of potential use cases, but I found it particularly...
Win a place @HackFu 2021 Community Edition!
Hello world!At JUMPSEC we’ve managed to get our hands on tickets to what is probably the greatest cyber security event in the calendar, HackFu!In order to be in with a chance of winning you simply need to complete the following challenge which you can download here (the download contains all the information needed to complete the challenge):...
Detecting known DLL hijacking and named pipe token impersonation attacks with Sysmon
Recently we posted a bunch of advisories relating to Ivanti Unified Endpoint Manager, a couple of which are for vulnerabilities which can be used to achieve local privilege escalation. We will give a brief explanation of the vulnerabilities and an example of Sysmon configuration rules to log exploitation attempts, along with the rationale behind them so you can adapt them to your existing configuration if needed.
Advisory CVE-2020-13773 – Ivanti Unified Endpoint Manager Reflected XSS
Software: Ivanti Endpoint ManagerAffected Versions: <= 2020.1.1Vendor page: www.ivanti.comCVE Reference: CVE-2020-13773Published: 13/11/2020CVSS 3.1 Score: 5.5 - AV:N/AC:L/PR:L/UI:R/S:U/C:L/I:L/A:LAttack Vector: Remote, authenticatedCredits: Andrei Constantin Scutariu, Lenk Ratchakrit, Calvin Yau Summary Various web pages on Ivanti Unified Endpoint Manager web management console lack proper...
Advisory CVE-2020-13769 – Ivanti Unified Endpoint Manager SQL injection
A number of web components in Endpoint Manager do not properly sanitize user input when executing SQL queries, leaving the application vulnerable to injection attacks towards the underlying database. On a standard installation with default options, the account used to query the database is database administrator.
Advisory CVE-2020-13772 – Ivanti Unified Endpoint Manager system information disclosure
Ivanti Unified Endpoint Manager’s “ldcient” component expose information about the system that could be used in further attacks against the system.
Advisory CVE-2020-13774 – Ivanti Unified Endpoint Manager authenticated RCE via file upload
Improper validation on file upload functionality present in Ivanti Unified Endpoint Manager’s web management console permits an authenticated user to upload .aspx files and execute them on the MS IIS server’s context. The issue is caused by insufficient file extension validation and insecure file operations on the uploaded image, which upon failure will leave the temporarily created files in an accessible location on the server.
Advisory CVE-2020-13770 – Ivanti Unified Endpoint Manager named pipe token impersonation privilege escalation
Several services are accessing named pipes with default or overly permissive security attributes; as these services run as user ‘NT AUTHORITY\SYSTEM’, the issue can be used to escalate privileges from a local standard or service account having SeImpersonatePrivilege (eg. user ‘NT AUTHORITY\NETWORK SERVICE’).
GitHub Activity
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