Over the weekend Citrix announced that its plans to release patches for critical vulnerabilities in its technology, used by tens of thousands of businesses worldwide, have significantly sped up.
The first patches, which address the CVE-2019-19781 or so-called Shitrix vulnerability, are now available for versions 11.1 and 12.0 of Citrix Application Delivery Controller (ADC), formerly known as NetScaler ADC.
“We urge customers to immediately install these fixes,” Citrix says.
Furthermore the company has moved forward its target dates for release of permanent patches for other versions of ADC and older versions of the Citrix SD-WAN WANOP.
That’s certainly good news as hackers have been actively exploiting the flaw – in some cases even using it to compromise vulnerable systems, remove malware planted by earlier hackers, and applying Citrix’s mitigation steps – only to leave a secret backdoor open for future compromise.
Of course, if you’re still waiting for patches from Citrix for your company’s particular setup you would be wise to still follow their mitigation advice as soon as possible.
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