CVE-2021-22956 — Uncontrolled Resource Consumption in Citrix Application Delivery Controller Firmware

CWE-400 — Uncontrolled Resource Consumption5 documents3 sources
Severity
7.5HIGHNVD
EPSS
0.5%
top 33.73%
CISA KEV
Not in KEV
Exploit
No known exploits
Affected products
10
Citrix Application Delivery Controller FirmwareCitrix GatewayCitrix Sd-wan+7 more
Timeline
PublishedDec 7
Latest updateDec 8

Description

An uncontrolled resource consumption vulnerability exists in Citrix ADC <13.0-83.27, <12.1-63.22 and 11.1-65.23 that could allow an attacker with access to NSIP or SNIP with management interface access to cause a temporary disruption of the Management GUI, Nitro API, and RPC communication.

CVSS vector

CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:HExploitability: 3.9 | Impact: 3.6

Affected Packages11 packages

▶NVDcitrix/sd-wan11.4.0 — 11.4.2+1
▶NVDcitrix/gateway12.1 — 12.1-63.22+2
▶citrixcitrix/sd-wan

🔴Vulnerability Details

1
GHSA
GHSA-cvqf-ghwg-56gj: An uncontrolled resource consumption vulnerability exists in Citrix ADC <13↗2021-12-08
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📋Vendor Advisories

3
Citrix
CVE-2021-22956: An uncontrolled resource consumption vulnerability exists in Citrix ADC <13.0-83.27, <12.1-63.22 and 11.1-65.23 that could allow an attacker with acce↗2021-12-07
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Citrix
MaxClient on Httpd↗
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Citrix
Citrix Application Delivery Controller and Citrix Gateway Edition appliance Security Update↗
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