Citrix has unveiled security updates to deal with a critical authentication bypass flaw in the application delivery controller (ADC) and Gateway that could be exploited to consider regulate of impacted units.
Successful exploitation of the issues could permit an adversary to get licensed obtain, accomplish distant desktop takeover, and even circumvent defenses towards login brute-power attempts under certain configurations.
- CVE-2022-27510 – Unauthorized entry to Gateway person capabilities
- CVE-2022-27513 – Distant desktop takeover by using phishing
- CVE-2022-27516 – Person login brute-force safety functionality bypass
The following supported versions of Citrix ADC and Citrix Gateway are affected by the flaws –
- Citrix ADC and Citrix Gateway 13.1 right before 13.1-33.47
- Citrix ADC and Citrix Gateway 13. prior to 13.-88.12
- Citrix ADC and Citrix Gateway 12.1 before 18.104.22.168
- Citrix ADC 12.1-FIPS prior to 12.1-55.289
- Citrix ADC 12.1-NDcPP right before 12.1-55.289
Exploitation, however, banking institutions on the prerequisite that the appliances are either configured as a VPN (Gateway) or, alternatively, an authentication, authorization and accounting (AAA) virtual server in the situation of CVE-2022-27516.
A person top of that, CVE-2022-27513 and CVE-2022-27516 also use only when the RDP proxy function and the consumer lockout functionality “Max Login Attempts” are established up, respectively.
The cloud computing and virtualization technology organization mentioned that no motion is essential from prospects relying on cloud expert services managed immediately by Citrix.
Jarosław Jahrek Kamiński, a researcher at Polish penetration tests firm Securitum, has been credited with exploring and reporting the vulnerabilities.
“Influenced shoppers of Citrix ADC and Citrix Gateway are encouraged to put in the applicable updated variations of Citrix ADC or Citrix Gateway as soon as doable,” Citrix explained in an advisory.
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