#VU69133 Improper Authentication in Citrix Access Gateway and Citrix Netscaler ADC - CVE-2022-27510

Vulnerability identifier: #VU69133

Vulnerability risk: High

CVSSv4.0: 6.6 [CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:H/VI:N/VA:N/SC:N/SI:N/SA:N/E:U/U:Amber]

CVE-ID: CVE-2022-27510

CWE-ID: CWE-287

Exploitation vector: Network

Exploit availability: No

Vulnerable software:
Citrix Access Gateway
Server applications / Remote management servers, RDP, SSH
Citrix Netscaler ADC
Client/Desktop applications / Software for system administration

Vendor: Citrix

Description

The vulnerability allows a remote attacker to bypass authentication process.

The vulnerability exists due to an error in the authentication process when the appliance is configured as VPN (Gateway). A remote non-authenticated attacker can bypass authentication process and gain unauthorized access to Gateway user capabilities.

Mitigation
Install updates from vendor's website.

Vulnerable software versions

Citrix Access Gateway: before 12.1.65.21

Citrix Netscaler ADC: before 12.1-55.289

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External links
https://support.citrix.com/article/CTX463706/citrix-gateway-and-citrix-adc-security-bulletin-for-cve202227510-cve202227513-and-cve202227516

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Q & A

Can this vulnerability be exploited remotely?

Yes. This vulnerability can be exploited by a remote non-authenticated attacker via the Internet.

Is there known malware, which exploits this vulnerability?

No. We are not aware of malware exploiting this vulnerability.