Actively exploited · Published Jul 10, 2020 · Assigned by hackerone

CVE-2020-8195

Medium 6.5 Exploited

In plain English

A medium-severity improper input validation in Citrix ADC, Citrix Gateway, Citrix SDWAN WAN-OP. Attackers are actively exploiting it in the wild (listed by CISA on November 3, 2021). The chance it is exploited in the next 30 days is estimated at 33.0% (higher than 98% of all known vulnerabilities). Apply updates per vendor instructions.

Severity (CVSS 3.1)6.5Medium

Exploit odds (30 days)33.0%top 1.6% of all CVEs

Exploited in the wildYesCISA KEV since Nov 3, 2021

Attack toolingNoneno public tooling known

CISA guidance

Apply updates per vendor instructions.

Federal agencies must remediate by May 3, 2022.

Official description

Improper input validation in Citrix ADC and Citrix Gateway versions before 13.0-58.30, 12.1-57.18, 12.0-63.21, 11.1-64.14 and 10.5-70.18 and Citrix SDWAN WAN-OP versions before 11.1.1a, 11.0.3d and 10.2.7 resulting in limited information disclosure to low privileged users.

Affected products (as reported)

Vendor	Product	Versions
n/a	Citrix ADC, Citrix Gateway, Citrix SDWAN WAN-OP	Citrix ADC and Citrix Gateway 13.0-58.30, 12.1-57.18, 12.0-63.21, 11.1-64.14 and 10.5-70.18 and Citrix SDWAN WAN-OP 11.1.1a, 11.0.3d and 10.2.7

Weakness: CWE-20 · Vector: CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:N

References

https://support.citrix.com/article/CTX276688 x_refsource_MISC
http://packetstormsecurity.com/files/160047/Citrix-ADC-NetScaler-Local-File-Inclusion.html x_refsource_MISC
https://www.cisa.gov/known-exploited-vulnerabilities-catalog?field_cve=CVE-2020-8195 government-resource