CVE-2020-8187 Denial of service in Citrix ADC, Citrix Gateway
Unauthenticated attackers can cause a denial of service in Citrix ADC and Gateway products due to improper input validation.
- Exploited in the wild
- Not known
- Login needed
- Not needed
- Attackable
- Over the internet
- Victim action needed
- Not needed
- Fix
- None listed
What is CVE-2020-8187?
CVE-2020-8187 is a high-severity denial of service vulnerability in Citrix ADC, Citrix Gateway, published on 10 Jul 2020. An attacker can exploit it over the internet without logging in, with no action from the victim.
Official description
Improper input validation in Citrix ADC and Citrix Gateway versions before 11.1-63.9 and 12.0-62.10 allows unauthenticated users to perform a denial of service attack.
Weakness: CWE-20
Which versions are affected by CVE-2020-8187?
It affects 2 products.
Products include Citrix Application Delivery Controller Firmware, Citrix Netscaler Gateway Firmware.
How do I fix CVE-2020-8187?
No fix has been published for CVE-2020-8187 yet. Limit exposure of the affected software until one is available.
Upgrade, then put limits on request size, rate and nesting depth so one client cannot exhaust the service. More about Denial of service.
Is CVE-2020-8187 being exploited?
There is no known exploitation of CVE-2020-8187 in the wild and no public exploit code.
Other vulnerabilities in Citrix ADC, Citrix Gateway
- CVE-2022-27518 Citrix Application Delivery Controller (ADC) and Gateway Authentication Bypass
- CVE-2019-19781 Citrix ADC, Gateway, and SD-WAN WANOP Appliance Code Execution
- CVE-2020-8193 Citrix ADC, Gateway, and SD-WAN WANOP Appliance Authorization Bypass
- CVE-2020-8195 Citrix ADC, Gateway, and SD-WAN WANOP Appliance Information Disclosure
- CVE-2020-8196 Citrix ADC, Gateway, and SD-WAN WANOP Appliance Information Disclosure
Sources
Also known as GHSA-qq2f-8prw-23j6.