A week in security (Dec 6 – 12)

Last week on Malwarebytes Labs: Log4j zero-day “Log4Shell” arrives just in time to ruin your weekend Click “OK” to defeat MFA Fake job interviews plague major game developers like Riot Games and Rockstar Has your WordPress site been backdoored by a skimmer? What is a search engine and why does...

CVE-2021-44228 - Patching is Recommended for Evolving Zero Day Vulnerability in Apache Log4j that allows remote code execution (RCE)

Akamai has been monitoring the rapidly evolving developments of CVE-2021-44228. We have been working closely with our customers and internal application teams to mitigate the risks posed by the threat of unauthorized remote code execution. This includes deploying an update to our existing Apache...

CVE-2021-44228 - Patching is Recommended for Evolving Zero Day Vulnerability in Apache Log4j that allows remote code execution (RCE)

Akamai has been monitoring the rapidly evolving developments of CVE-2021-44228. We have been working closely with our customers and internal application teams to mitigate the risks posed by the threat of unauthorized remote code execution. This includes deploying an update to our existing Apache...

Extremely Critical Log4J Vulnerability Leaves Much of the Internet at Risk

The Apache Software Foundation has released fixes to contain an actively exploited zero-day vulnerability affecting the widely-used Apache Log4j Java-based logging library that could be weaponized to execute malicious code and allow a complete takeover of vulnerable systems. Tracked as...

How We’re Protecting Customers & Staying Ahead of CVE-2021-44228

CVE-2021-44228 is a high profile vulnerability impacting multiple versions of a widely distributed Java software component, Apache Log4j 2. The specific vulnerability allows for unauthenticated remote code execution. For additional technical information, the team at LunaSec has an excellent...

CVE-2021-44228 - Zero Day Vulnerability in Apache Log4j that allows remote code execution (RCE)

See how Akamai helped open-source logging library Log4j fight against a critical unauthenticated remote code execution RCE vulnerability and reduce customer exposure...

CVE-2021-44228: Apache Log4j2 Zero-Day Exploited in the Wild (Log4Shell)

Update Take advantage of our free service to quickly detect vulnerabilities in your external attack surface. Visit qualys.com/was-log4shell-help to get started. Update – December 22, 2021 7:53 PM ET A bug in external scanners could result in false negatives when unauthenticated Log4Shell scans we...

Grafana releases an emergency patch for a Zero-Day vulnerability

THREAT LEVEL: Amber. For a detailed advisory, download the pdf file here. A vulnerability in Chrome and Microsoft Edge Chromium-based exists as a result of a use-after-free Grafana, a database analyzing, and monitoring tool used by major companies has been affected by a high severe zero-day...

Aiven Ltd: Zero day path traversal vulnerability in Grafana 8.x allows unauthenticated arbitrary local file read

Summary: Hi team, I've found a path traversal issue in the Grafana instances hosted on the Aiven platforms. With the path traversal it's possible for an unauthenticated user to read arbitrary files on the server. Steps To Reproduce: 1. Login at https://console.aiven.io 1. Create a new Grafana...

Microsoft could not patch this vulnerability yet again

THREAT LEVEL: Amber. For a detailed advisory, download the pdf file here. An improperly patched Windows vulnerability CVE-2021-24084 can lead to local privilege escalation and information disclosure. The vulnerability was disclosed in October 2020 and even after Microsoft addressed this...

Ongoing Exploitation of Windows Installer CVE-2021-41379

CVE | Vendor Advisory | AttackerKB | IVM Content | Patching Urgency | Last Update ---|---|---|---|---|--- CVE-2021-41379 | Microsoft Advisory | AttackerKB | Scheduled when patched | ASAP when released | December 3, 2021 3:00 PM ET See the Updates section at the end of this post for new informatio...

Unpatched Windows 10 Zero-Day Allows Privileged File Access

An unpatched Windows security vulnerability could allow information disclosure and local privilege escalation LPE, researchers have warned. The issue CVE-2021-24084 has yet to get an official fix, making it a zero-day bug – but a micropatch has been rolled out as a stop-gap measure. Security...

Warning — Hackers Exploiting New Windows Installer Zero-Day Exploit in the Wild

Attackers are actively making efforts to exploit a new variant of a recently disclosed privilege escalation vulnerability to potentially execute arbitrary code on fully-patched systems, once again demonstrating how adversaries move quickly to weaponize a publicly available exploit. Cisco Talos...

Windows Installer vulnerability becomes actively exploited zero-day

Sometimes the ways in which malicious code gets in the hands of cybercriminals is frustrating for those in the industry, and incomprehensible to those on the outside. A quick summary of the events in the history of this exploit: A researcher found a flaw in Windows Installer that would allow an...

Attackers Actively Target Windows Installer Zero-Day

Attackers are actively exploiting a Windows Installer zero-day vulnerability that was discovered when a patch Microsoft issued for another security hole inadequately fixed the original and unrelated problem. Over the weekend, security researcher Abdelhamid Naceri discovered a Windows Installer...

Microsoft could not patch this vulnerability

THREAT LEVEL: Red. For a detailed advisory, download the pdf file here. Microsoft released patches for 44 vulnerabilities on November 9th. CVE-2021-41379 was among them. However, installing this patch does not completely eliminate the vulnerability. An exploit for a new Windows zero-day local...

Attackers exploiting zero-day vulnerability in Windows Installer — Here’s what you need to know and Talos’ coverage

Cisco Talos is releasing new SNORTⓇ rules to protect against the exploitation of a zero-day elevation of privilege vulnerability in Microsoft Windows Installer. This vulnerability allows an attacker with a limited user account to elevate their privileges to become an administrator. This... This i...

A week in security (Nov 15 – Nov 21)

Last week on Malwarebytes Labs Instagram’s memorialize feature abused to memorialize…Instagram’s boss Evasive manoeuvres: HTML smuggling explained FBI server hijacked to send up to 100,000 bogus attack mails New Mac malware raises more questions about Apple’s security patching SharkBot Android...

FBI Issues Flash Alert on Actively Exploited FatPipe VPN Zero-Day Bug

The U.S. Federal Bureau of Investigation FBI has disclosed that an unidentified threat actor has been exploiting a previously unknown weakness in the FatPipe MPVPN networking devices at least since May 2021 to obtain an initial foothold and maintain persistent access into vulnerable networks,...

FBI: FatPipe VPN Zero-Day Exploited by APT for 6 Months

A threat actor has been exploiting a zero-day vulnerability in FatPipe’s virtual private network VPN devices as a way to breach companies and gain access to their internal networks, since at least May, the FBI has warned. “As of November 2021, FBI forensic analysis indicated exploitation of a 0-d...