Cloudflare Breach: Nation-State Hackers Access Source Code and Internal Docs

Cloudflare has revealed that it was the target of a likely nation-state attack in which the threat actor leveraged stolen credentials to gain unauthorized access to its Atlassian server and ultimately access some documentation and a limited amount of source code. The intrusion, which took place between November 14 and 24, 2023, and detected on November 23, was carried out "with the goal of

~40,000 Attacks in 3 Days: Critical Confluence RCE Under Active Exploitation

Malicious actors have begun to actively exploit a recently disclosed critical security flaw impacting Atlassian Confluence Data Center and Confluence Server, within three days of public disclosure. Tracked as CVE-2023-22527 (CVSS score: 10.0), the vulnerability impacts out-of-date versions of the software, allowing unauthenticated attackers to achieve remote code execution on susceptible

Citrix, VMware, and Atlassian Hit with Critical Flaws — Patch ASAP!

Citrix is warning of two zero-day security vulnerabilities in NetScaler ADC (formerly Citrix ADC) and NetScaler Gateway (formerly Citrix Gateway) that are being actively exploited in the wild. The flaws are listed below - CVE-2023-6548 (CVSS score: 5.5) - Authenticated (low privileged) remote code execution on Management Interface (requires access to NSIP, CLIP, or SNIP with management

Atlassian Releases Critical Software Fixes to Prevent Remote Code Execution

Atlassian has released software fixes to address four critical flaws in its software that, if successfully exploited, could result in remote code execution. The list of vulnerabilities is below - CVE-2022-1471 (CVSS score: 9.8) - Deserialization vulnerability in SnakeYAML library that can lead to remote code execution in multiple products CVE-2023-22522 (CVSS score

Alert: 'Effluence' Backdoor Persists Despite Patching Atlassian Confluence Servers

Cybersecurity researchers have discovered a stealthy backdoor named Effluence that's deployed following the successful exploitation of a recently disclosed security flaw in Atlassian Confluence Data Center and Server. "The malware acts as a persistent backdoor and is not remediated by applying patches to Confluence," Aon's Stroz Friedberg Incident Response Services said in an analysis published

Experts Warn of Ransomware Hackers Exploiting Atlassian and Apache Flaws

Multiple ransomware groups have begun to actively exploit recently disclosed flaws in Atlassian Confluence and Apache ActiveMQ. Cybersecurity firm Rapid7 said it observed the exploitation of CVE-2023-22518 and CVE-2023-22515 in multiple customer environments, some of which have been leveraged for the deployment of Cerber (aka C3RB3R) ransomware. Both vulnerabilities are critical, allowing threat

Atlassian Warns of New Critical Confluence Vulnerability Threatening Data Loss

Atlassian has warned of a critical security flaw in Confluence Data Center and Server that could result in "significant data loss if exploited by an unauthenticated attacker." Tracked as CVE-2023-22518, the vulnerability is rated 9.1 out of a maximum of 10 on the CVSS scoring system. It has been described as an instance of "improper authorization vulnerability." All versions of Confluence Data

Microsoft Warns of Nation-State Hackers Exploiting Critical Atlassian Confluence Vulnerability

Microsoft has linked the exploitation of a recently disclosed critical flaw in Atlassian Confluence Data Center and Server to a nation-state actor it tracks as Storm-0062 (aka DarkShadow or Oro0lxy). The tech giant's threat intelligence team said it observed in-the-wild abuse of the vulnerability since September 14, 2023. "CVE-2023-22515 is a critical privilege escalation vulnerability in

Atlassian Confluence Hit by New Actively Exploited Zero-Day – Patch Now

Atlassian has released fixes to contain an actively exploited critical zero-day flaw impacting publicly accessible Confluence Data Center and Server instances. The vulnerability, tracked as CVE-2023-22515, is remotely exploitable and allows external attackers to create unauthorized Confluence administrator accounts and access Confluence servers. It does not impact Confluence versions prior to

High-Severity Flaws Uncovered in Atlassian Products and ISC BIND Server

Atlassian and the Internet Systems Consortium (ISC) have disclosed several security flaws impacting their products that could be exploited to achieve denial-of-service (DoS) and remote code execution. The Australian software services provider said that the four high-severity flaws were fixed in new versions shipped last month. This includes - CVE-2022-25647 (CVSS score: 7.5) - A deserialization

Atlassian Releases Patches for Critical Flaws in Confluence and Bamboo

Atlassian has released updates to address three security flaws impacting its Confluence Server, Data Center, and Bamboo Data Center products that, if successfully exploited, could result in remote code execution on susceptible systems. The list of the flaws is below - CVE-2023-22505 (CVSS score: 8.0) - RCE (Remote Code Execution) in Confluence Data Center and Server (Fixed in versions 8.3.2 and

Atlassian's Jira Service Management Found Vulnerable to Critical Vulnerability

Atlassian has released fixes to resolve a critical security flaw in Jira Service Management Server and Data Center that could be abused by an attacker to pass off as another user and gain unauthorized access to susceptible instances. The vulnerability is tracked as CVE-2023-22501 (CVSS score: 9.4) and has been described as a case of broken authentication with low attack complexity. "An

Atlassian Releases Patches for Critical Flaws Affecting Crowd and Bitbucket Products

Australian software company Atlassian has rolled out security updates to address two critical flaws affecting Bitbucket Server, Data Center, and Crowd products. The issues, tracked as CVE-2022-43781 and CVE-2022-43782, are both rated 9 out of 10 on the CVSS vulnerability scoring system. CVE-2022-43781, which Atlassian said was introduced in version 7.0.0 of Bitbucket Server and Data Center,

CISA Warns of Hackers Exploiting Critical Atlassian Bitbucket Server Vulnerability

The U.S. Cybersecurity and Infrastructure Security Agency (CISA) on Friday added a recently disclosed critical flaw impacting Atlassian's Bitbucket Server and Data Center to the Known Exploited Vulnerabilities (KEV) catalog, citing evidence of active exploitation. Tracked as CVE-2022-36804, the issue relates to a command injection vulnerability that could allow malicious actors to gain arbitrary

Hackers Targeting Unpatched Atlassian Confluence Servers to Deploy Crypto Miners

A now-patched critical security flaw affecting Atlassian Confluence Server that came to light a few months ago is being actively exploited for illicit cryptocurrency mining on unpatched installations. "If left unremedied and successfully exploited, this vulnerability could be used for multiple and more malicious attacks, such as a complete domain takeover of the infrastructure and the deployment

Hackers Exploited Atlassian Confluence Bug to Deploy Ljl Backdoor for Espionage

A threat actor is said to have "highly likely" exploited a security flaw in an outdated Atlassian Confluence server to deploy a never-before-seen backdoor against an unnamed organization in the research and technical services sector. The attack, which transpired over a seven-day-period during the end of May, has been attributed to a threat activity cluster tracked by cybersecurity firm Deepwatch

CISA Warns of Atlassian Confluence Hard-Coded Credential Bug Exploited in Attacks

The U.S. Cybersecurity and Infrastructure Security Agency (CISA) on Friday added the recently disclosed Atlassian security flaw to its Known Exploited Vulnerabilities Catalog, based on evidence of active exploitation. The vulnerability, tracked as CVE-2022-26138, concerns the use of hard-coded credentials when the Questions For Confluence app is enabled in Confluence Server and Data Center

Latest Critical Atlassian Confluence Vulnerability Under Active Exploitation

A week after Atlassian rolled out patches to contain a critical flaw in its Questions For Confluence app for Confluence Server and Confluence Data Center, the shortcoming has now come under active exploitation in the wild. The bug in question is CVE-2022-26138, which concerns the use of a hard-coded password in the app that could be exploited by a remote, unauthenticated attacker to gain

Atlassian Rolls Out Security Patch for Critical Confluence Vulnerability

Atlassian has rolled out fixes to remediate a critical security vulnerability pertaining to the use of hard-coded credentials affecting the Questions For Confluence app for Confluence Server and Confluence Data Center. The flaw, tracked as CVE-2022-26138, arises when the app in question is enabled on either of two services, causing it to create a Confluence user account with the username "

Atlassian Confluence Flaw Being Used to Deploy Ransomware and Crypto Miners

A recently patched critical security flaw in Atlassian Confluence Server and Data Center products is being actively weaponized in real-world attacks to drop cryptocurrency miners and ransomware payloads. In at least two of the Windows-related incidents observed by cybersecurity vendor Sophos, adversaries exploited the vulnerability to deliver Cerber ransomware and a crypto miner called z0miner

Atlassian Releases Patch for Confluence Zero-Day Flaw Exploited in the Wild

Atlassian on Friday rolled out fixes to address a critical security flaw affecting its Confluence Server and Data Center products that have come under active exploitation by threat actors to achieve remote code execution. Tracked as CVE-2022-26134, the issue is similar to CVE-2021-26084 — another security flaw the Australian software company patched in August 2021. Both relate to a case of

Atlassian announces 0-day hole in Confluence Server – update now!

Zero-day announced - here's what you need to know

Hackers Exploiting Unpatched Critical Atlassian Confluence Zero-Day Vulnerability

Atlassian has warned of a critical unpatched remote code execution vulnerability impacting Confluence Server and Data Center products that it said is being actively exploited in the wild. The Australian software company credited cybersecurity firm Volexity for identifying the flaw, which is being tracked as CVE-2022-26134. "Atlassian has been made aware of current active exploitation of a