Weekly Threat Digest: 16-22 May 2022

Published Vulnerabilities Interesting Vulnerabilities Active Threat Groups Targeted Countries Targeted Industries ATT&CK TTPs 466 6 2 26 10 27 For a detailed threat digest, download the pdf file here Summary The third week of May 2022 witnessed the discovery of 466 vulnerabilities out of which 6...

Conti Ransomware Operation Shut Down After Splitting into Smaller Groups

Even as the operators of Conti threatened to overthrow the Costa Rican government, the notorious cybercrime gang officially took down its attack infrastructure in favor of migrating their malicious cyber activities to other ancillary operations, including Karakurt and BlackByte. "From the...

hivex: stack overflow due to recursive call of _get_children()

A flaw was found in the hivex library. This flaw allows an attacker to input a specially crafted Windows Registry hive file, which would cause hivex to recursively call the getchildren function, leading to a stack overflow. The highest threat from this vulnerability is to system availability...

Conti and Hive ransomware operations: What we learned from these groups' victim chats

As part of Cisco Talos’ continuous efforts to learn more about the current ransomware landscape, we recently examined a trove of chat logs between the Conti and Hive ransomware gangs and their victims. Ransomware-as-a-service groups have exploded in popularity over the past few years, with these...

Hive Ransomware targets organizations with ProxyShell exploit

THREAT LEVEL: Red. For a detailed advisory, download the pdf file here Hive Ransomware has been active since its discovery in June 2021, and it is constantly deploying different backdoors, including the Cobalt Strike beacon, on Microsoft Exchange servers that are vulnerable to ProxyShell...

New Incident Report Reveals How Hive Ransomware Targets Organizations

A recent Hive ransomware attack carried out by an affiliate involved the exploitation of "ProxyShell" vulnerabilities in the Microsoft Exchange Server that were disclosed last year to encrypt an unnamed customer's network. "The actor managed to achieve its malicious goals and encrypt the...

A week in security (March 28 – April 3)

Last week on Malwarebytes Labs: New UAC-0056 activity: There’s a Go Elephant in the room Globant suffers network breach due to LAPSUS$ compromise Update now! Apple patches two zero-day vulnerabilities that may have been actively exploited Hive ransomware impacts California non-profit health...

Hive Pro Named ‘Startup of the Year – Security Software’ in the Globee Awards 18th Annual Cyber Security Global Excellence Awards®

Milpitas, California, March 28 - Hive Pro announced today that The Globee® Awards, organizers of world’s premier business awards programs and business ranking lists, has named Hive Pro a winner in the 18th Annual 2022 Cyber Security Global Excellence Awards®. These prestigious global awards...

Nearly 34 Ransomware Variants Observed in Hundreds of Cyberattacks in Q4 2021

As many as 722 ransomware attacks were observed during the fourth quarter of 2021, with LockBit 2.0, Conti, PYSA, Hive, and Grief emerging as the most prevalent strains, according to new research published by Intel 471. The attacks mark an increase of 110 and 129 attacks from the third and second...

Information Disclosure

org.apache.spark:spark-hive-thriftserver2.12 is vulnerable to information disclosure. The vulnerability allows someone to decrypt plaintext traffic offline because the library uses a bespoke mutual authentication protocol that allows for full encryption key recovery resulting in disclosure of...

New Nokoyawa Ransomware Possibly Related to Hive

In March 2022, we came across evidence that another, relatively unknown, ransomware known as Nokoyawa is likely connected with Hive, as the two families share some striking similarities in their attack chain, from the tools used to the order in which they execute various steps...

Hive ransomware: Researchers figure out a method to decrypt files

Files encrypted by ransomware cant be recovered without obtaining the decryption key, if the encryption has been done properly. But that doesnt seem to be the case for Hive ransomware. Researchers from the Kookmin University in Korea have published a method for decrypting the data scrambled by...

Master Key for Hive Ransomware Retrieved Using a Flaw in its Encryption Algorithm

Researchers have detailed what they call the "first successful attempt" at decrypting data infected with Hive ransomware without relying on the private key used to lock access to the content. "We were able to recover the master key for generating the file encryption key without the attacker's...

Information Disclosure

hive-service is vulnerable to information disclosure. The vulnerability exists because the verifyAndExtract function of CookieSigner.java uses a constant-time comparison for cookie signature verification, allowing an attacker to recover another user's cookie signature...

@foxnfork/auth-node (>=0.0.8, <=0.0.50), @foxnfork/node-utils (>=0.0.1, <=0.0.9) +11 more potentially affected by CVE-2021-26543 via git-parse (>=1.0.3, <=1.0.4)

git-parse NPM version =1.0.3, =0.0.8, =0.0.1, =0.0.1, =2.11.0-beta, =1.4.3, =2.6.0, =2.18.1, =0.2.11, =1.2.7, =1.0.0, =2.33.10, =0.2.1, =2.6.2, =2.6.3 Source cves: CVE-2021-26543 Source advisory: OSV:GHSA-M744-2JJ8-VPFV...

GHSA-54G4-5CF6-HJP3 Apache Hive Information Exposure and Observable Timing Discrepancy

Apache Hive cookie signature verification used a non constant time comparison which is known to be vulnerable to timing attacks. This could allow recovery of another users cookie signature. The issue was addressed in Apache Hive 2.3.8...

Apache Hive Information Exposure and Observable Timing Discrepancy

Apache Hive cookie signature verification used a non constant time comparison which is known to be vulnerable to timing attacks. This could allow recovery of another users cookie signature. The issue was addressed in Apache Hive 2.3.8...

Privilege escalation vulnerability in Citrix Workspace for Linux

THREAT LEVEL: Amber. For a detailed advisory, download the pdf file here. A local privilege escalation vulnerability could allow a local user to gain root privileges on the computer running Citrix Workspace app for Linux. This vulnerability CVE-2022-21825 affects the Citrix Workspace app for Linu...

A flaw was found in the hivex library. This flaw allows an attacker to input a specially crafted Windows Registry (hive) file which would cause hivex to recursively call the _get_children() function leading to a stack overflow. The highest threat from this vulnerability is to system availability.

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AZL-7096 CVE-2021-3622 affecting package hivex for versions less than 1.3.21-1

A flaw was found in the hivex library. This flaw allows an attacker to input a specially crafted Windows Registry hive file, which would cause hivex to recursively call the getchildren function, leading to a stack overflow. The highest threat from this vulnerability is to system availability...