A New Variant of FlawedGrace Spreading Through Mass Email Campaigns

Cybersecurity researchers on Tuesday took the wraps off a mass volume email attack staged by a prolific cybercriminal gang affecting a wide range of industries, with one of its region-specific operations notably targeting Germany and Austria. Enterprise security firm Proofpoint tied the malware...

A week in security (Oct 4 – Oct 10)

Last week on Malwarebytes Labs Does Cybersecurity Awareness Month actually improve security? Police take a piece out of a ransomware gang, but won’t say which one Neiman Marcus data breach affects millions Windows 11 is out. Is it any good for security? Criminals were inside Syniverse for 5 years...

CVE-2021-41830

CVE-2021-41830 describes an imbalance in trust validation where an attacker can manipulate signed documents and macros to appear from a trusted source, affecting Apache OpenOffice up to 4.1.10. The initial advisory recommends updating to OpenOffice 4.1.11. Connected documents discuss related Libr...

At long last, Microsoft is disabling Excel 4.0 macros by default

Sometimes good news in the security world comes unexpectedly. This is one of those times. After three decades of macro viruses, and three decades of trying to convince every single Excel user individually to disable macros, Microsoft is going disable Excel 4.0 macros for everyone. Better late tha...

BoobSnail - Allows Generating Excel 4.0 XLM Macro

BoobSnail allows generating XLM Excel 4.0 macro. Its purpose is to support the RedTeam and BlueTeam in XLM macro generation. Features: various infection techniques; various obfuscation techniques; translation of formulas into languages other than English; can be used as a library - you can easily...

openSUSE: Security Advisory for ntfs-3g_ntfsprogs (openSUSE-SU-2021:1244-1)

The remote host is missing an update for the Copyright C 2021 Greenbone Networks GmbH Some text descriptions might be excerpted from a referenced sources, and are Copyright C by the respective right holders. SPDX-License-Identifier: GPL-2.0-or-later This program is free software; you can...

GHSA-2C83-WFV3-Q25F Improper Neutralization of Special Elements used in an OS Command ('OS Command Injection') in ZMarkdown

Impact A Remote Command Execution vulnerability was found in the rebber module, which allowed execution of arbitrary commands. The reported problem came from CodeBlocks, which could be escaped to insert malicious LaTeX. Anyone using rebber without sanitation of code content or a custom macro is...

Improper Neutralization of Special Elements used in an OS Command ('OS Command Injection') in ZMarkdown

Impact A Remote Command Execution vulnerability was found in the rebber module, which allowed execution of arbitrary commands. The reported problem came from CodeBlocks, which could be escaped to insert malicious LaTeX. Anyone using rebber without sanitation of code content or a custom macro is...

Use after free in generic-array

An issue was discovered in the generic-array crate before 0.13.3 for Rust. It violates soundness by using the arr! macro to extend lifetimes...

Remote code execution in better-macro

An issue was discovered in the better-macro crate through 2021-07-22 for Rust. It intentionally demonstrates that remote attackers can execute arbitrary code via proc-macros, and otherwise has no legitimate purpose...

GHSA-79WF-QCQV-R22R Remote code execution in better-macro

An issue was discovered in the better-macro crate through 2021-07-22 for Rust. It intentionally demonstrates that remote attackers can execute arbitrary code via proc-macros, and otherwise has no legitimate purpose...

New variant of Konni malware used in campaign targetting Russia

This blog post was authored by Hossein Jazi In late July 2021, we identified an ongoing spear phishing campaign pushing Konni Rat to target Russia. Konni was first observed in the wild in 2014 and has been potentially linked to the North Korean APT group named APT37. We discovered two documents...

SUSE-SU-2021:2765-1 Security update for libmspack

This update for libmspack fixes the following issues: - CVE-2018-14681: Bad KWAJ file header extensions could cause a one or two byte overwrite. bsc1103032 - CVE-2018-14682: There is an off-by-one error in the TOLOWER macro for CHM decompression. bsc1103032...

[SECURITY] Fedora 34 Update: rust-git-version-macro-0.3.4-1.fc34

Internal macro crate for git-version...

Fedora: Security Advisory for rust-git-version-macro (FEDORA-2021-3cf88e44b4)

The remote host is missing an update for the Copyright C 2021 Greenbone Networks GmbH Some text descriptions might be excerpted from a referenced sources, and are Copyright C by the respective right holders. SPDX-License-Identifier: GPL-2.0-or-later This program is free software; you can...

Mozilla Rust code execution vulnerability

Rust is a general-purpose, compiled programming language from the Mozilla Foundation. A code execution vulnerability exists in Mozilla Rust's Better-macro crate, which can be exploited by attackers to execute arbitrary code on a system...

CVE-2021-38196

An issue was discovered in the better-macro crate through 2021-07-22 for Rust. It intentionally demonstrates that remote attackers can execute arbitrary code via proc-macros, and otherwise has no legitimate purpose...

CVE-2020-36465

An issue was discovered in the generic-array crate before 0.13.3 for Rust. It violates soundness by using the arr! macro to extend lifetimes...

CVE-2021-38196

An issue was discovered in the better-macro crate through 2021-07-22 for Rust. It intentionally demonstrates that remote attackers can execute arbitrary code via proc-macros, and otherwise has no legitimate purpose...

Code injection

An issue was discovered in the better-macro crate through 2021-07-22 for Rust. It intentionally demonstrates that remote attackers can execute arbitrary code via proc-macros, and otherwise has no legitimate purpose...