Vulnerability Name:

CVE-2018-1221 (CCN-140563)

Assigned:2017-12-06
Published:2018-02-13
Updated:2021-05-27
Summary:In cf-deployment before 1.14.0 and routing-release before 0.172.0, the Cloud Foundry Gorouter mishandles WebSocket requests for AWS Application Load Balancers (ALBs) and some other HTTP-aware Load Balancers. A user with developer privileges could use this vulnerability to steal data or cause denial of service.
CVSS v3 Severity:8.1 High (CVSS v3.1 Vector: CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:H)
7.1 High (Temporal CVSS v3.1 Vector: CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:H/E:U/RL:O/RC:C)
Exploitability Metrics:Attack Vector (AV): Network
Attack Complexity (AC): Low
Privileges Required (PR): Low
User Interaction (UI): None
Scope:Scope (S): Unchanged
Impact Metrics:Confidentiality (C): High
Integrity (I): None
Availibility (A): High
5.4 Medium (CCN CVSS v3.1 Vector: CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:L/I:N/A:L)
4.7 Medium (CCN Temporal CVSS v3.1 Vector: CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:L/I:N/A:L/E:U/RL:O/RC:C)
Exploitability Metrics:Attack Vector (AV): Network
Attack Complexity (AC): Low
Privileges Required (PR): Low
User Interaction (UI): None
Scope:Scope (S): Unchanged
Impact Metrics:Confidentiality (C): Low
Integrity (I): None
Availibility (A): Low
CVSS v2 Severity:5.5 Medium (CVSS v2 Vector: AV:N/AC:L/Au:S/C:P/I:N/A:P)
Exploitability Metrics:Access Vector (AV): Network
Access Complexity (AC): Low
Authentication (Au): Single_Instance
Impact Metrics:Confidentiality (C): Partial
Integrity (I): None
Availibility (A): Partial
5.5 Medium (CCN CVSS v2 Vector: AV:N/AC:L/Au:S/C:P/I:N/A:P)
Exploitability Metrics:Access Vector (AV): Network
Access Complexity (AC): Low
Athentication (Au): Single_Instance
Impact Metrics:Confidentiality (C): Partial
Integrity (I): None
Availibility (A): Partial
Vulnerability Type:CWE-20
Vulnerability Consequences:Obtain Information
References:Source: MITRE
Type: CNA
CVE-2018-1221

Source: XF
Type: UNKNOWN
cloudfoundry-cve20181221-info-disc(140563)

Source: CCN
Type: Cloud Foundry Web site
CVE-2018-1221: Gorouter websocket handling vulnerability

Source: CONFIRM
Type: Third Party Advisory
https://www.cloudfoundry.org/blog/cve-2018-1221/

Vulnerable Configuration:Configuration 1:
  • cpe:/a:cloudfoundry:cf-deployment:*:*:*:*:*:*:*:* (Version < 1.14.0)
  • OR cpe:/a:cloudfoundry:routing-release:*:*:*:*:*:*:*:* (Version < 0.172.0)

    • Configuration CCN 1:
  • cpe:/a:cloudfoundry:cf-deployment:1.13.0:*:*:*:*:*:*:*
  • OR cpe:/a:cloudfoundry:routing_release:0.171.0:*:*:*:*:*:*:*

    • * Denotes that component is vulnerable
    BACK
    cloudfoundry cf-deployment *
    cloudfoundry routing-release *
    pivotal_software cloud foundry cf-deployment 1.13.0
    cloudfoundry routing release 0.171.0