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

LockBit Ransomware Exploiting Critical Citrix Bleed Vulnerability to Break In

Multiple threat actors, including LockBit ransomware affiliates, are actively exploiting a recently disclosed critical security flaw in Citrix NetScaler application delivery control (ADC) and Gateway appliances to obtain initial access to target environments. The joint advisory comes from the U.S. Cybersecurity and Infrastructure Security Agency (CISA), Federal Bureau of Investigation (FBI),

Critical Citrix NetScaler Flaw Exploited to Target from Government, Tech Firms

Citrix is warning of exploitation of a recently disclosed critical security flaw in NetScaler ADC and Gateway appliances that could result in exposure of sensitive information. Tracked as CVE-2023-4966 (CVSS score: 9.4), the vulnerability impacts the following supported versions - NetScaler ADC and NetScaler Gateway 14.1 before 14.1-8.50 NetScaler ADC and NetScaler Gateway 13.1 before 13.1-

Citrix Devices Under Attack: NetScaler Flaw Exploited to Capture User Credentials

A recently disclosed critical flaw in Citrix NetScaler ADC and Gateway devices is being exploited by threat actors to conduct a credential harvesting campaign. IBM X-Force, which uncovered the activity last month, said adversaries exploited "CVE-2023-3519 to attack unpatched NetScaler Gateways to insert a malicious script into the HTML content of the authentication web page to capture user

Hundreds of Citrix NetScaler ADC and Gateway Servers Hacked in Major Cyber Attack

Hundreds of Citrix NetScaler ADC and Gateway servers have been breached by malicious actors to deploy web shells, according to the Shadowserver Foundation. The non-profit said the attacks take advantage of CVE-2023-3519, a critical code injection vulnerability that could lead to unauthenticated remote code execution. The flaw, patched by Citrix last month, carries a CVSS score of 9.8. The 

Citrix NetScaler ADC and Gateway Devices Under Attack: CISA Urges Immediate Action

The U.S. Cybersecurity and Infrastructure Security Agency (CISA) issued an advisory on Thursday warning that the newly disclosed critical security flaw in Citrix NetScaler Application Delivery Controller (ADC) and Gateway devices is being abused to drop web shells on vulnerable systems. "In June 2023, threat actors exploited this vulnerability as a zero-day to drop a web shell on a critical

Zero-Day Attacks Exploited Critical Vulnerability in Citrix ADC and Gateway

Citrix is alerting users of a critical security flaw in NetScaler Application Delivery Controller (ADC) and Gateway that it said is being actively exploited in the wild. Tracked as CVE-2023-3519 (CVSS score: 9.8), the issue relates to a case of code injection that could result in unauthenticated remote code execution. It impacts the following versions - NetScaler ADC and NetScaler Gateway 13.1

Thousands of Citrix Servers Still Unpatched for Critical Vulnerabilities

Thousands of Citrix Application Delivery Controller (ADC) and Gateway endpoints remain vulnerable to two critical security flaws disclosed by the company over the last few months. The issues in question are CVE-2022-27510 and CVE-2022-27518 (CVSS scores: 9.8), which were addressed by the virtualization services provider on November 8 and December 13, 2022, respectively. While CVE-2022-27510

Hackers Actively Exploiting Citrix ADC and Gateway Zero-Day Vulnerability

The U.S. National Security Agency (NSA) on Tuesday said a threat actor tracked as APT5 has been actively exploiting a zero-day flaw in Citrix Application Delivery Controller (ADC) and Gateway to take over affected systems. The critical remote code execution vulnerability, identified as CVE-2022-27518, could allow an unauthenticated attacker to execute commands remotely on vulnerable devices and

Citrix Issues Patches for Critical Flaw Affecting ADC and Gateway Products

Citrix has released security updates to address a critical authentication bypass flaw in the application delivery controller (ADC) and Gateway products that could be exploited to take control of affected systems. Successful exploitation of the issues could enable an adversary to gain authorized access, perform remote desktop takeover, and even circumvent defenses against login brute-force