Citrix printed safety patches to repair a important authentication bypass challenge in Citrix ADC and Citrix Gateway. It’s suggested that impacted customers of Citrix ADC and Citrix Gateway set up the relevantly up to date variations of these merchandise as early as doable.
Citrix Gateway is a generally used cloud-based or on-premises enterprise server SSL VPN service that provides safe distant entry with id and entry administration capabilities.
For enterprise-deployed cloud purposes, Citrix ADC is a load-balancing answer that ensures steady availability and the perfect efficiency.
“Be aware that solely home equipment which are working as a Gateway (home equipment utilizing the SSL VPN performance or deployed as an ICA proxy with authentication enabled) are affected by the primary challenge, which is rated as a Vital severity vulnerability”, reads the Citrix safety bulletin.
Vulnerabilities Addressed
The corporate mounted three vulnerabilities general. The three flaws can permit attackers to bypass login brute drive safety, carry out distant desktop takeover, or get unauthorized entry to the machine relying on the configuration.
Vital-severity authentication bypassing utilizing an alternate path or channel is exploitable provided that the equipment is configured as VPN (Gateway).
An inadequate verification of knowledge authenticity permits distant desktop takeover through phishing. The problem is exploitable provided that the equipment is configured as VPN (Gateway), and the RDP proxy performance is configured.
It’s a consumer login brute drive safety performance bypass. This vulnerability can solely be exploited if the equipment is configured as VPN (Gateway) or AAA digital server with a “Max Login Makes an attempt” configuration.
The Following Variations of Citrix ADC and Citrix Gateway are Affected By This Vulnerability
- Citrix ADC and Citrix Gateway 13.1 earlier than 13.1-33.47
- Citrix ADC and Citrix Gateway 13.0 earlier than 13.0-88.12
- Citrix ADC and Citrix Gateway 12.1 earlier than 12.1.65.21
- Citrix ADC 12.1-FIPS earlier than 12.1-55.289
- Citrix ADC 12.1-NDcPP earlier than 12.1-55.289
The corporate stated this is applicable to customer-managed Citrix ADC and Citrix Gateway home equipment. Clients utilizing Citrix-managed cloud providers don’t have to take any motion.
Notably, Citrix ADC and Citrix Gateway variations previous to 12.1 are EOL, and clients on these variations are advisable to improve to one of many supported variations.
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