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SAP S/4HANA Suffers Active Exploitation of Critical Vulnerability CVE-2025-42957

Sep 05, 2025
Vulnerability / Enterprise Security

A serious security flaw in SAP S/4HANA, a popular Enterprise Resource Planning (ERP) system, is currently being exploited in the wild. This command injection vulnerability, designated as CVE-2025-42957 and given a CVSS score of 9.9, was recently addressed by SAP in its monthly updates. According to the NIST National Vulnerability Database (NVD), “SAP S/4HANA allows an attacker with user privileges to exploit a vulnerability in the function module exposed via RFC.” This flaw allows for the injection of arbitrary ABAP code into the system, bypassing critical authorization checks. A successful attack could compromise the entire SAP environment, threatening the confidentiality, integrity, and availability of the system. Attackers could manipulate the SAP database, create superuser accounts with SAP_ALL privileges, extract password hashes, and disrupt business processes.

TAG-150 Develops CastleRAT in Python and C, Enhancing CastleLoader Malware Operations

September 05, 2025
Botnet / Malware

The threat actor behind the malware-as-a-service (MaaS) framework and loader known as CastleLoader has introduced a remote access trojan, CastleRAT. Available in both Python and C versions, CastleRAT primarily functions to collect system information, download and execute additional payloads, and run commands via CMD and PowerShell, according to Recorded Future’s Insikt Group. The cybersecurity firm is monitoring the malicious activities attributed to TAG-150, which is believed to have been operational since at least March 2025. CastleLoader and its variants serve as initial access points for various secondary payloads, including other remote access trojans, information stealers, and additional loaders. CastleLoader (also referred to as CastleBot) was first reported by Swiss cybersecurity firm PRODAFT in July 2025, highlighting its use in campaigns distributing DeerStealer, RedLine, StealC, NetSupport RAT, SectopRAT, and Hijack Loader. Further analysis…

CISA Urges Immediate Patching of Critical Sitecore Vulnerability Under Active Attack

September 5, 2025
Vulnerability / Threat Intelligence

Federal Civilian Executive Branch (FCEB) agencies are directed to update their Sitecore systems by September 25, 2025, due to a critical security vulnerability, identified as CVE-2025-53690, that is currently being exploited. The vulnerability has a CVSS score of 9.0 out of 10, highlighting its severity. According to the U.S. Cybersecurity and Infrastructure Security Agency (CISA), this flaw affects Sitecore Experience Manager (XM), Experience Platform (XP), Experience Commerce (XC), and Managed Cloud, allowing for deserialization of untrusted data through default machine keys. This presents an opportunity for attackers to execute remote code by exploiting exposed ASP.NET machine keys. Mandiant, a Google-owned cybersecurity firm, reported that the ongoing ViewState deserialization attacks utilized a sample machine key found in Sitecore deployment guides from 2017 and earlier. The threat intelligence team…

“Noisy Bear Campaign Disguised as Phishing Test Revealed Targeting Kazakhstan’s Energy Sector”

Sep 06, 2025 – Malware / Cyber Espionage

A suspected Russian threat actor is behind a series of attacks aimed at Kazakhstan’s energy sector, identified as Operation BarrelFire by Seqrite Labs, which tracks the group as Noisy Bear. Active since at least April 2025, the campaign specifically targets employees of KazMunaiGas (KMG). The attackers delivered a counterfeit document purporting to be from the KMG IT department, mimicking legitimate internal communications and addressing topics like policy updates, certification processes, and salary adjustments. According to security researcher Subhajeet Singha, the infection process starts with a phishing email containing a ZIP file that includes a Windows shortcut (LNK) downloader, a decoy document related to KazMunaiGas, and a README.txt file with instructions in both Russian and Kazakh to execute a program named “KazMunayGaz_Viewer.”