PT-2020-6866 · Citrix · Citrix Virtual Apps/Desktops

Published 2020-11-10 · Updated 2020-12-03 · CVE-2020-8270

Positive Technologies (AI Summary)

CVSS v2.0

9.0

High

Base vector

AV:N/AC:L/Au:S/C:C/I:C/A:C

Name of the Vulnerable Software and Affected Versions Citrix Virtual Apps and Desktops (CVAD) versions prior to 2009 Citrix Virtual Apps and Desktops (CVAD) versions 1912 LTSR CU1 Citrix Virtual Apps and Desktops (CVAD) versions 7.15 LTSR CU6

Description The issue is related to the Citrix Virtual Apps and Desktops (CVAD) service, which allows an unprivileged Windows user or an SMB user to perform arbitrary command execution as SYSTEM. This is due to the failure to neutralize special elements used in the operating system command. Exploitation of this issue may allow a remote attacker to elevate privileges and execute arbitrary commands.

Recommendations For CVAD versions prior to 2009, apply hotfixes CTX285871 and CTX285872. For CVAD versions 1912 LTSR CU1, apply hotfixes CTX285871 and CTX285872. For CVAD versions 7.15 LTSR CU6, apply hotfixes CTX285341 and CTX285342.

Fix

OS Command Injection

Weakness Enumeration

CWE-78

Related Identifiers

BDU:2023-02424

CVE-2020-8270

Affected Products

Citrix Virtual Apps/Desktops

References · 6

• https://osv.dev/vulnerability/CVE-2020-8270 · Vendor Advisory
• https://support.citrix.com/article/CTX285059 · Vendor Advisory
• https://nvd.nist.gov/vuln/detail/CVE-2020-8270 · Security Note
• https://bdu.fstec.ru/vul/2023-02424 · Security Note
• https://vuldb.com/?id.164969 · Note
• https://support.citrix.com/article/CTX285059/citrix-virtual-apps-and-desktops-security-update · Note