Vulnerability Name:

CVE-2020-5401 (CCN-177013)

Assigned:2020-02-24
Published:2020-02-24
Updated:2020-03-03
Summary:Cloud Foundry Routing Release, versions prior to 0.197.0, contains GoRouter, which allows malicious clients to send invalid headers, causing caching layers to reject subsequent legitimate clients trying to access the app.
CVSS v3 Severity:5.3 Medium (CVSS v3.1 Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:L)
4.6 Medium (Temporal CVSS v3.1 Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:L/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): Low
5.3 Medium (CCN CVSS v3.1 Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:L/A:N)
4.6 Medium (CCN Temporal CVSS v3.1 Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:L/A:N/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): Low
Availibility (A): None
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
5.0 Medium (CCN CVSS v2 Vector: AV:N/AC:L/Au:N/C:N/I:P/A:N)
Exploitability Metrics:Access Vector (AV): Network
Access Complexity (AC): Low
Athentication (Au): None
Impact Metrics:Confidentiality (C): None
Integrity (I): Partial
Availibility (A): None
Vulnerability Type:CWE-444
Vulnerability Consequences:Gain Access
References:Source: MITRE
Type: CNA
CVE-2020-5401

Source: XF
Type: UNKNOWN
cloudfoundry-cve20205401-cache-poisoning(177013)

Source: CONFIRM
Type: Vendor Advisory
https://www.cloudfoundry.org/blog/cve-2020-5401

Source: CCN
Type: Cloud Foundry Blog, February 24, 2020
CVE-2020-5401: Cloud Foundry GoRouter is vulnerable to cache poisoning

Vulnerable Configuration:Configuration 1:
  • cpe:/a:cloudfoundry:routing-release:*:*:*:*:*:*:*:* (Version < 0.197.0)

    • Configuration CCN 1:
  • cpe:/a:cloudfoundry:routing_release:0.141.0:*:*:*:*:*:*:*
  • OR cpe:/a:cloudfoundry:routing_release:0.171.0:*:*:*:*:*:*:*

    • * Denotes that component is vulnerable
    BACK
    cloudfoundry routing-release *
    cloudfoundry routing release 0.141.0
    cloudfoundry routing release 0.171.0