Vulnerability Name:

CVE-2020-3946 (CCN-180320)

Assigned:2019-12-03
Published:2019-12-03
Updated:2021-07-21
Summary:InstallBuilder AutoUpdate tool and regular installers enabling <checkForUpdates> built with versions earlier than 19.11 are vulnerable to Billion laughs attack (denial-of-service).
CVSS v3 Severity:7.5 High (CVSS v3.1 Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H)
6.5 Medium (Temporal CVSS v3.1 Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/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): None
Integrity (I): None
Availibility (A): High
7.5 High (CCN CVSS v3.1 Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H)
6.5 Medium (CCN Temporal CVSS v3.1 Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/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): None
Integrity (I): None
Availibility (A): High
CVSS v2 Severity:5.0 Medium (CVSS v2 Vector: AV:N/AC:L/Au:N/C:N/I:N/A:P)
Exploitability Metrics:Access Vector (AV): Network
Access Complexity (AC): Low
Authentication (Au): None
Impact Metrics:Confidentiality (C): None
Integrity (I): None
Availibility (A): Partial
7.8 High (CCN CVSS v2 Vector: AV:N/AC:L/Au:N/C:N/I:N/A:C)
Exploitability Metrics:Access Vector (AV): Network
Access Complexity (AC): Low
Athentication (Au): None
Impact Metrics:Confidentiality (C): None
Integrity (I): None
Availibility (A): Complete
Vulnerability Type:CWE-400
Vulnerability Consequences:Denial of Service
References:Source: MITRE
Type: CNA
CVE-2020-3946

Source: CCN
Type: InstallBuilder Blog, 2019/12/03
Configure autoupdate project settings from the command line

Source: CONFIRM
Type: Vendor Advisory
https://blog.installbuilder.com/2019/12/configure-autoupdate-project-settings.html

Source: XF
Type: UNKNOWN
installbuilder-cve20203946-dos(180320)

Source: CCN
Type: InstallBuilder Web site
Cross Platform VMware InstallBuilder

Vulnerable Configuration:Configuration 1:
  • cpe:/a:vmware:installbuilder:*:*:*:*:*:*:*:* (Version < 19.11.0)

    • Configuration CCN 1:
  • cpe:/a:vmware:installbuilder:19.10.0:*:*:*:*:*:*:*

    • * Denotes that component is vulnerable
    BACK
    vmware installbuilder *
    vmware installbuilder 19.10.0