ZeroHour
Security Affairspublished ()ingested @securityaffairs

Attackers exploit VMware Workspace ONE Access bug to drop ransomware, miners

criticalRansomwareimportance 60CVE-2022-22954

Vulnerabilities mentionedAll →

CVEVulnerabilityCVSSEPSSFlagsAffectedExposurePublished
CVE-2022-22954
Server-Side Template Injection RCE in VMware Workspace ONE Access and Identity Manager

CVE-2022-22954 is a server-side template injection vulnerability (CWE-94) in VMware Workspace ONE Access and VMware Identity Manager that allows remote code execution on affected appliances. It is triggered when attacker-controlled input is passed into a server-side template engine, allowing injected template directives to be evaluated and executed as code on the server. A successful attacker gains the ability to run arbitrary code on the identity appliance, and CISA notes the flaw has been used in ransomware campaigns, so compromise can serve as an initial foothold for broader enterprise intrusion. Any organization running Workspace ONE Access or Identity Manager, including deployments where the Identity Manager component is bundled into VMware Horizon environments, is potentially affected, though the source data does not specify affected version ranges. The vulnerability was added to CISA's Known Exploited Vulnerabilities catalog on 2022-04-14 with ransomware use confirmed and a required action to apply vendor updates, and EPSS currently assigns it a 100% probability of exploitation within 30 days (100th percentile); no public PoC is known.

Do: Apply the patches published in VMware advisory VMSA-2022-0011 (April 2022) to Workspace ONE Access and Identity Manager appliances as required by the CISA KEV listing, prioritizing internet-facing instances, and restrict or remove public exposure until patched. Review appliance and web-server logs for template-injection probes and unexpected processes spawned by the identity service, and investigate any indications of compromise for follow-on ransomware or lateral-movement activity.

9.8100% KEV ransomware PoC
  • VMware Workspace ONE Access
  • VMware Identity Manager
large≈ tens of thousands of internet-exposed Workspace ONE Access / Identity Manager instances (order-of-magnitude estimate; exact count unknown)
Full article292 words · extracted from securityaffairs.com · click to collapse

Threat actors are exploiting a now-patched vulnerability, tracked as CVE-2022-22954, in VMware Workspace ONE Access in attacks in the wild.

Threat actors are actively exploiting a now-patched vulnerability, tracked as CVE-2022-22954, in VMware Workspace ONE Access to deliver cryptocurrency miners and ransomware.

The issue causes server-side template injection due to because of the lack of sanitization on parameters “deviceUdid” and “devicetype”. An attacker can trigger the vulnerability to inject a payload and achieve remote code execution on VMware Workspace ONE Access and Identity Manager.

Fortinet FortiGuard Labs researchers observed attacks in the wild primarily aimed at stealing sensitive data. In August, the experts detected a few particular payloads used to deploy Mirai samples targeting exposed networking devices running Linux. The Mirai variant involved in the attacks was used to launch DoS and brute force attacks.

Other payloads were used to deliver RAR1ransom and the GuardMiner cryptominer, which is a variant of xmrig. The RAR1Ransom and GuardMiner malware were distributed by using PowerShell or a shell script depending on the operating system.

“We can tell the attacker intends to utilize a victim’s resources as much as possible, not only to install RAR1Ransom for extortion, but also to spread GuardMiner to collect cryptocurrency.” reads the Fortinet FortiGuard Labs report.

“Although the critical vulnerability CVE-2022-22954 is already patched in April, there are still multiple malware campaigns trying to exploit it. Users should always keep systems updated and patched and be aware of any suspicious process in environment.” concludes the report. “These Mirai variants, RAR1Ransom, and GuardMiner are not extremely complicated samples, but their methods are always changing and evolving.”

Follow me on Twitter: @securityaffairs and Facebook

[adrotate banner=”9″][adrotate banner=”12″]

Pierluigi Paganini

(SecurityAffairs – hacking, VMware Workspace ONE Access)

[adrotate banner=”5″]

[adrotate banner=”13″]



Text extracted automatically; images, tables and formatting may be missing. Original: https://securityaffairs.com/137483/hacking/vmware-workspace-one-access-flaw.html