The under the identifier “CVE-2019-19781“Vulnerability led allowed hackers to get into the internal networks of companies in 158 countries. The vulnerability was addressed by the security companyPositive technologiesdiscovered. The vulnerability affects, among other things, the Citrix Application Delivery Controller (ADC) and Citrix Gateway products. A complete list can be found on the officialSupport pagefrom Citrix.
The serious vulnerability …
… is common in 63% of the countries.
Citrix applications are widespread in many corporate networks to give employees terminal access to internal programs. As a result, the security vulnerability now discovered poses a high risk. An attacker could have direct access to a company’s internal network without having previously created an account. A patch is still being developed.
Attacks can be blocked
However, the companies concerned can also take countermeasures and ward off attacks. The attacks can be identified with the help of an application firewall. Until a patch is rolled out, the exploitation of the vulnerability can be blocked effectively.
It wasn’t until the beginning of the year that Citrix itself was the victim of a hacker attack. At the time, some cyber criminals managed to penetrate the company’s internal network and loot numerous business documents. The group’s share price then fell by around three percent.
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