Our team is tracking in-the-wild exploitation of zero-day vulnerabilities against PaperCut MF/NG which allow for unauthenticated remote code execution due to an authentication bypass.

This is a story about a security vulnerability in Google that allowed me to run arbitrary code on the computers of 50+ Google employees. Although Google initially considered my finding a serious security incident, later on, it changed its mind and stated that my finding is not, in fact, a vulnerability, but the intended behavior of their software.

Check Point Research recently discovered three vulnerabilities in the “Microsoft Message Queuing” service, commonly known as MSMQ. These vulnerabilities were disclosed to Microsoft and patched in the April Patch Tuesday update. The most severe of these, dubbed QueueJumper by CPR (CVE-2023-21554), is a critical vulnerability that could allow unauthorized attackers to remotely execute arbitrary code in the context of the Windows service process mqsvc.exe.

In late 2022 and early 2023, Project Zero reported eighteen 0-day vulnerabilities in Exynos Modems produced by Samsung Semiconductor. The four most severe of these eighteen vulnerabilities (CVE-2023-24033 and three other vulnerabilities that have yet to be assigned CVE-IDs) allowed for Internet-to-baseband remote code execution. Tests conducted by Project Zero confirm that those four vulnerabilities allow an attacker to remotely compromise a phone at the baseband level with no user interaction, and require only that the attacker know the victim's phone number. With limited additional research and development, we believe that skilled attackers would be able to quickly create an operational exploit to compromise affected devices silently and remotely.

A PoC exploit for CVE-2023-21716, a critical RCE vulnerability in Microsoft Word that can be exploited when the user previews a specially crafted RTF document, is now publicly available.

Numerous threat actors were detected abusing a critical CVE-2022-47966 RCE vulnerability affecting products from ManageEngine. Read our advisory.

Switchzilla hardware and software need attention, unless you fancy arbitrary remote code execution

Cisco has disclosed today a high-severity zero-day vulnerability affecting the latest generation of its IP phones and exposing them to remote code execution and denial of service (DoS) attacks.

Proof-of-concept exploit code has been released online for two actively exploited and high-severity vulnerabilities in Microsoft Exchange, collectively known as ProxyNotShell.

Command & Control (C2) frameworks are a very sensitive component of Red Team operations. Often, a Red Team will be in a highly privileged position on a target’s network, and a compromise of the C2 framework could lead to a compromise of both the red team operator’s system and control over beacons established on a target’s systems. As such, vulnerabilities in C2 frameworks are high priority targets for threat actors and Counterintelligence (CI) operations. On September 20, 2022, HelpSystems published an out-of-band patch for Cobalt Strike which stated that there was potential for Remote Code Execution (RCE).

Circa the beginning of August 2022, while doing security monitoring & incident response services, GTSC SOC team discovered that a critical infrastructure was being attacked, specifically to their Microsoft Exchange application. During the investigation, GTSC Blue Team experts determined that the attack utilized an unpublished Exchange security vulnerability, i.e., a 0-day vulnerability, thus immediately came up with a temporary containment plan.

A code injection vulnerability allowing remote code execution was discovered in the User Portal and Webadmin of Sophos Firewall. The vulnerability has been fixed.

Severity: High

The OpenSSL 3.0.4 release introduced a serious bug in the RSA
implementation for X86_64 CPUs supporting the AVX512IFMA instructions.
This issue makes the RSA implementation with 2048 bit private keys
incorrect on such machines and memory corruption will happen during
the computation. As a consequence of the memory corruption an attacker
may be able to trigger a remote code execution on the machine performing
the computation.

The IRAY A8Z3 thermal camera for industrial application, manufactured by Infiray/IRay Technologies is affected by multiple vulnerabilities.

We discovered vulnerabilities in Horde Webmail that allow an attacker to execute arbitrary code on Horde instances by having a victim open an email

CVE-2022-1388 is a critical vulnerability (CVSS 9.8) in the management interface of F5 Networks’ BIG-IP solution that enables an unauthenticated attacker to gain remote code execution on the system through bypassing F5’s iControl REST authentication. The vulnerability was first discovered by F5’s internal product security team and disclosed publicly on May 4, 2022.

Sophos Firewall is a network protection solution for the enterprise market.