Log4j Scanning Tools

Log4j Detection with JFrog OSS Scanning Tools

The discovery of the Log4Shell vulnerability in the ubiquitous Apache Log4j package is a singular event in terms of both its impact and severity. Over 1 million attack attempts exploiting the Log4Shell vulnerability were detected within days after it was exposed, and it may take years before we see its full impact. While it’s hard …

Log4shell Vulnerability Explained

Log4j Log4Shell 0-Day Vulnerability: All You Need To Know

On Thursday, Dec 9th 2021, a researcher from the Alibaba Cloud Security Team dropped a zero-day remote code execution exploit on Twitter, targeting the extremely popular log4j logging framework for Java (specifically, the 2.x branch called Log4j2). The vulnerability was originally discovered and reported to Apache by the Alibaba cloud security team on November 24th. …

Malicious npm Packages Are After Your Discord Tokens – 17 New Packages Disclosed

The JFrog Security research team continuously monitors popular open source software (OSS) repositories with our automated tooling, and reports any vulnerabilities or malicious packages discovered to repository maintainers and the wider community. Most recently we disclosed 11 malicious packages in the PyPI repository, a discovery that shows attacks are getting more sophisticated in their approach. …

Python Malware Imitates Signed PyPI Traffic in Novel Exfiltration Technique

The JFrog Security research team continuously monitors popular open source software (OSS) repositories with our automated tooling to report vulnerable and malicious packages to repository maintainers. Earlier this year we disclosed several malicious packages targeting developers’ private data that were downloaded approximately 30K times. Today, we will share details about 11 new malware packages that …

Unboxing BusyBox – 14 new vulnerabilities uncovered by Claroty and JFrog

Background Embedded devices with limited memory and storage resources are likely to leverage a tool such as BusyBox, which is marketed as the Swiss Army Knife of embedded Linux. BusyBox is a software suite of many useful Unix utilities, known as applets, that are packaged as a single executable file. Within BusyBox you can find …

Denial of Service (DoS) in Netty’s Decompressors

CVE-2021-37136 & CVE-2021-37137 – Denial of Service (DoS) in Netty’s Decompressors

Background The JFrog Security research team has recently disclosed two denial of service issues (CVE-2021-37136, CVE-2021-37137) in Netty, a popular client/server framework which enables quick and easy development of network applications such as protocol servers and clients. In this post we will elaborate on one of the issues – CVE-2021-37136. Who is actually impacted? Netty …

CVE-2020-27304 – RCE via Directory Traversal in CivetWeb HTTP server

Background JFrog has recently disclosed a directory traversal issue in CivetWeb, a very popular embeddable web server/library that can either be used as a standalone web server or included as a library to add web server functionality to an existing application. The issue has been assigned to CVE-2020-27304. This directory traversal issue is highly exploitable …

Don’t let Prometheus Steal your Fire

Don’t let Prometheus Steal your Fire

Background Prometheus is an open-source, metrics-based event monitoring and alerting solution for cloud applications. It is used by nearly 800 cloud-native organizations including Uber, Slack, Robinhood, and more. By scraping real-time metrics from various endpoints, Prometheus allows easy observation of a system’s state in addition to observation of hardware and software metrics such as memory …

YAML Security Vulnerability

23andMe’s Yamale Python code injection, and properly sanitizing eval()

Background JFrog security research team (formerly Vdoo) has recently disclosed a code injection issue in Yamale, a popular schema validator for YAML that’s used by over 200 repositories. The issue has been assigned to CVE-2021-38305. The injection issue An attacker that can control the contents of the schema file that’s supplied to Yamale (-s/–schema command …

JFrog PyPI

JFrog Detects Malicious PyPI Packages Stealing Credit Cards and Injecting Code

Software package repositories are becoming a popular target for supply chain attacks. Recently, there has been news about malware attacks on popular repositories like npm, PyPI, and RubyGems. Developers are blindly trusting repositories and installing packages from these sources, assuming they are secure. Sometimes malware packages are allowed to be uploaded to the package repository, …