We’re looking at cloud credential theft (not good) and a big win for early vulnerability fixes (better) this week, as well as critical Mitsubishi Electric and Rockwell Automation bugs that could affect industrial control environments. Additionally, a SSL certificate weakness in qBittorrent has finally been fixed after 14 years of vulnerability.
Also, Microsoft hasn’t yet developed a fix for Windows 11 downgrade attacks, which were first announced this summer at the Black Hat conference. If your business runs Windows operating systems (as most do), check system files for strange activity and any downgrades to older, more vulnerable OS versions.
October 26, 2024
Windows 11 Downgrade Vulnerability Is Still Wide Open
Type of vulnerability: Admin code execution privileges leading to operating system downgrades.
The problem: This summer, researcher Alon Leviev revealed a downgrade attack vulnerability in Windows, the exploit for which he named Downdate. The Windows update process could be overtaken, and a threat actor could execute undetectable and irreversible downgrades to Windows system components, Leviev said. He demonstrated the downgrade at Black Hat 2024, reverting fully patched Windows machines back to previous vulnerable states.
Leviev recently published an update to the summer’s information, showing that Microsoft’s decision not to fix an Administrator privilege makes Windows 11 still vulnerable. Because an admin gaining kernel code execution privileges isn’t considered breaking an official security boundary or vulnerability, Microsoft has opted not to fix it. Microsoft has recently reported it’s actively working on a fix, though it hasn’t provided a deadline or specific details.
The fix: Monitor your Windows operating system behavior, including log files, and look for any downgrade procedures. Microsoft has no published fix for the threat yet, since it doesn’t consider it an official vulnerability.
I also recommend scanning regularly for vulnerabilities, on an automated basis if possible. Check out our top vulnerability scanning tools for some ideas if your security team needs more consistent monitoring.
October 30, 2024
Sysdig Report Reveals Major Theft of Cloud Credentials
Type of vulnerability: Misconfigured cloud services and exposed Git files.
The problem: Sysdig reported a widespread credential theft operation that preys on exposed Git configuration files. Sysdig refers to the global attack as EMERALDWHALE. EMERALDWHALE uses private software tools to abuse misconfigured web services, which helps threat actors steal cloud credentials from cloud services’ source code. Threat actors can also clone private Git repositories.
The threat actors then stash any stolen data in a previous victim’s S3 bucket. They’ve stolen over 10,000 cloud credentials thus far, Sysdig reports.
Sysdig discovered the threat when it found in its cloud honeypot a strange bucket using a compromised account. “While investigating this bucket, we discovered malicious tools and over a terabyte of data, which included compromised credentials and logging data,” Sysdig said. Through the bucket, Sysdig uncovered an extensive scanning campaign exploiting Git configurations.
Two of the major tools that attackers use to exploit the Git config files are MZR V2 and Seyzo-v2, which require a list of targets like IP addresses or previously scanned domains. The tools are found on underground marketplaces.
The fix: Use encryption for all your Git configuration; avoid committing sensitive data, including credentials; and set strict access requirements for your repositories.
October 31, 2024
CISA Flags Mitsubishi Vulnerabilities in Halloween Notice
Type of vulnerability: Missing authentication for critical function and unsafe reflection.
The problem: CVE-2023-6943, a Mitsubishi vulnerability that was publicized in January, has been updated and highlighted through the CISA. The vulnerability has a critical score of 9.8 and affects components like EZSocket, MELSOFT Navigator, and MT Works2.
On Halloween, the CISA released a set of advisories for three of the Mitsubishi vulnerabilities and the Rockwell Automation bug listed below. The advisories are considered to be a broad industrial control warning. These flaws could particularly affect smart devices in manufacturing and supply chain environments.
“Successful exploitation of these vulnerabilities could allow an attacker to disclose, tamper with, destroy or delete information in the products, or cause a denial-of-service (DoS) condition on the products,” the CISA said regarding CVE-2023-6943, the critical Mitsubishi vulnerability. A remote unauthenticated threat actor could execute code using paths to a malicious library when it’s connected to any of the Mitsubishi products listed above.
The CISA listed the affected versions of each product:
- EZSocket: Versions 3.0 and later
- GT Designer3 Version1(GOT1000): All versions
- GT Designer3 Version1(GOT2000): All versions
- GX Works2: Versions 1.11M and later
- GX Works3: Versions 1.106L and prior
- MELSOFT Navigator: Versions 1.04E and later
- MT Works2: All versions
- MX Component: Versions 4.00A and later
- MX OPC Server DA/UA (Software packaged with MC Works64): All versions
The fix: For GX Works3, Mitsubishi Electric advises customers to upgrade to version 1.110Q or later.
Rockwell Automation Bug Also Gets CISA Warning
Type of vulnerability: Missing authentication for critical function and out-of-bounds read.
The problem: A critical Rockwell Automation bug allows an attacker with network access to send specially crafted messages to the Rockwell device. This could potentially lead to database manipulation. The vulnerability is tracked as CVE-2024-10386 and specifically affects Rockwell FactoryTalk ThinManager.
The CISA released a notice for the vulnerability and warns that potential messages sent to the Rockwell device could also lead to a denial-of-service (DoS) attack.
The vulnerability affects the following software versions:
- ThinManager: Versions 11.2.0 to 11.2.9
- ThinManager: Versions 12.0.0 to 12.0.7
- ThinManager: Versions 12.1.0 to 12.1.8
- ThinManager: Versions 13.0.0 to 13.0.5
- ThinManager: Versions 13.1.0 to 13.1.3
- ThinManager: Versions 13.2.0 to 13.2.2
- ThinManager: Version 14.0.0
The fix: Rockwell has provided fixes for ThinManager; download the most recent version available for your environment.
November 1, 2024
qBittorrent Solves 14-Year-Old SSL Certificate Issue
Type of vulnerability: Insufficient SSL certificate validation, potentially leading to remote code execution.
The problem: qBittorrent has a recently discovered and patched vulnerability that went unidentified for 14 years. Versions 3.2.1 through 5.0.0 of the software, a torrent client that helps with sequential downloading, are susceptible to a severe security issue. If exploited, the vulnerability allows threat actors to run remote code on computer systems with an affected version installed.
The flaw existed in qBittorrent’s DownloadManager class. It didn’t deal with SSL certificate validation errors, which leaves website connections vulnerable.
The fix: Version 5.0.1 of qBittorrent fixes the issue, and all vulnerable versions should be upgraded.
Google’s Big Sleep Framework Identifies Vulnerability Early
Type of vulnerability: Stack buffer overflow.
The problem: Google Project Zero recently announced that Big Sleep, a vulnerability research project supported by large language models, discovered its first vulnerability. The flaw lies within SQLite, a database engine, and is a stack buffer overflow vulnerability that Google reported to SQLite’s developers, who fixed it that day. Because the devs fixed the issue before it was announced, it didn’t impact SQLite users.
This is an exciting discovery for Google Project Zero because it heralds the future of identifying vulnerabilities before they’re even publicly available to exploit within software. This significantly reduces threat actors’ opportunities to attack.
The fix: Upgrade SQLite to the most recent version.
Read next:
- Vulnerability Recap 10/28/24 – Phishing, DoS, RCE & a Zero-Day
- Best Vulnerability Management Software & Systems in 2024
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