Vulnerability Name:

CVE-2020-27730 (CCN-193592)

Assigned:2020-12-08
Published:2020-12-08
Updated:2022-08-06
Summary:In versions 3.0.0-3.9.0, 2.0.0-2.9.0, and 1.0.1, the NGINX Controller Agent does not use absolute paths when calling system utilities.
CVSS v3 Severity:9.8 Critical (CVSS v3.1 Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H)
8.5 High (Temporal CVSS v3.1 Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H/E:U/RL:O/RC:C)
Exploitability Metrics:Attack Vector (AV): Network
Attack Complexity (AC): Low
Privileges Required (PR): None
User Interaction (UI): None
Scope:Scope (S): Unchanged
Impact Metrics:Confidentiality (C): High
Integrity (I): High
Availibility (A): High
8.1 High (CCN CVSS v3.1 Vector: CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:H)
7.1 High (CCN Temporal CVSS v3.1 Vector: CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:H/E:U/RL:O/RC:C)
Exploitability Metrics:Attack Vector (AV): Network
Attack Complexity (AC): High
Privileges Required (PR): None
User Interaction (UI): None
Scope:Scope (S): Unchanged
Impact Metrics:Confidentiality (C): High
Integrity (I): High
Availibility (A): High
CVSS v2 Severity:7.5 High (CVSS v2 Vector: AV:N/AC:L/Au:N/C:P/I:P/A:P)
Exploitability Metrics:Access Vector (AV): Network
Access Complexity (AC): Low
Authentication (Au): None
Impact Metrics:Confidentiality (C): Partial
Integrity (I): Partial
Availibility (A): Partial
7.6 High (CCN CVSS v2 Vector: AV:N/AC:H/Au:N/C:C/I:C/A:C)
Exploitability Metrics:Access Vector (AV): Network
Access Complexity (AC): High
Athentication (Au): None
Impact Metrics:Confidentiality (C): Complete
Integrity (I): Complete
Availibility (A): Complete
Vulnerability Type:CWE-22
Vulnerability Consequences:Gain Privileges
References:Source: MITRE
Type: CNA
CVE-2020-27730

Source: XF
Type: UNKNOWN
f5-cve202027730-priv-esc(193592)

Source: CONFIRM
Type: Third Party Advisory
https://security.netapp.com/advisory/ntap-20210115-0004/

Source: CCN
Type: F5 Security Advisory K43530108
NGINX Controller Agent vulnerability CVE-2020-27730

Source: CONFIRM
Type: Vendor Advisory
https://support.f5.com/csp/article/K43530108

Vulnerable Configuration:Configuration 1:
  • cpe:/a:f5:nginx_controller:*:*:*:*:*:*:*:* (Version >= 2.0.0 and <= 2.9.0)
  • OR cpe:/a:f5:nginx_controller:1.0.1:*:*:*:*:*:*:*
  • OR cpe:/a:f5:nginx_controller:*:*:*:*:*:*:*:* (Version >= 3.0.0 and < 3.10.0)

    • Configuration 2:
  • cpe:/a:netapp:cloud_backup:-:*:*:*:*:*:*:*

    • Configuration CCN 1:
  • cpe:/a:f5:nginx_controller:1.0.1:*:*:*:*:*:*:*
  • OR cpe:/a:f5:nginx_controller:2.0.0:*:*:*:*:*:*:*
  • OR cpe:/a:f5:nginx_controller:3.0.0:*:*:*:*:*:*:*
  • OR cpe:/a:f5:nginx_controller:2.9.0:*:*:*:*:*:*:*
  • OR cpe:/a:f5:nginx_controller:3.9.0:*:*:*:*:*:*:*

    • * Denotes that component is vulnerable
    BACK
    f5 nginx controller *
    f5 nginx controller 1.0.1
    f5 nginx controller *
    netapp cloud backup -
    f5 nginx controller 1.0.1
    f5 nginx controller 2.0.0
    f5 nginx controller 3.0.0
    f5 nginx controller 2.9.0
    f5 nginx controller 3.9.0