⚠ Actively exploited
Added to CISA KEV on 2022-03-25. Federal agencies required to patch by 2022-04-15. Required action: Apply updates per vendor instructions..

CVE-2019-12991 — OS Command Injection in Citrix Netscaler Sd-wan

CWE-78 — OS Command Injection11 documents8 sources
Severity
8.8HIGHNVD
EPSS
81.0%
top 0.84%
CISA KEV
KEV
Added 2022-03-25
Due 2022-04-15
Exploit
Exploited in wild
Active exploitation observed
Affected products
5
Citrix Netscaler Sd-wanCitrix Sd-wanCitrix Sd-wan+2 more
Timeline
PublishedJul 16
KEV addedMar 25
KEV dueApr 15
Latest updateMay 24
CISA Required Action: Apply updates per vendor instructions.

Description

Citrix SD-WAN 10.2.x before 10.2.3 and NetScaler SD-WAN 10.0.x before 10.0.8 have Improper Input Validation (issue 5 of 6).

CVSS vector

CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:HExploitability: 2.8 | Impact: 5.9

Affected Packages6 packages

▶NVDcitrix/netscaler_sd-wan10.0.0 — 10.0.8
▶NVDcitrix/sd-wan10.2.0 — 10.2.3
▶citrixcitrix/sd-wan

🔴Vulnerability Details

2
GHSA
GHSA-462p-6gjx-6wj6: Citrix SD-WAN 10↗2022-05-24
▶
VulnCheck
Citrix SD-WAN and NetScaler Command Injection Vulnerability↗2019
▶

💥Exploits & PoCs

1
Exploit-DB
Citrix SD-WAN Appliance 10.2.2 - Authentication Bypass / Remote Command Execution↗2019-07-12
▶

📋Vendor Advisories

3
CISA
Citrix SD-WAN and NetScaler Command Injection Vulnerability↗2022-03-25
▶
Citrix
CVE-2019-12991: Citrix SD-WAN 10.2.x before 10.2.3 and NetScaler SD-WAN 10.0.x before 10.0.8 have Improper Input Validation (issue 5 of 6).↗2019-07-16
▶
Citrix
Citrix SD-WAN Multiple Security Updates↗
▶

🕵️Threat Intelligence

4
Unit42
Mirai Variant ECHOBOT Resurfaces with 13 Previously Unexploited Vulnerabilities↗2019-12-13
▶
Unit42
Mirai Variant ECHOBOT Resurfaces with 13 Previously Unexploited Vulnerabilities↗2019-12-13
▶
Tenable
Multiple Vulnerabilities Found in Citrix SD-WAN Center and SD-WAN Appliances↗2019-07-11
▶
Tenable
Citrix SD-WAN Appliance Multiple Vulnerabilities↗2019-07-02
▶