Vulnerability Name:

CVE-2020-15187 (CCN-188456)

Assigned:2020-09-17
Published:2020-09-17
Updated:2020-10-02
Summary:In Helm before versions 2.16.11 and 3.3.2, a Helm plugin can contain duplicates of the same entry, with the last one always used. If a plugin is compromised, this lowers the level of access that an attacker needs to modify a plugin's install hooks, causing a local execution attack. To perform this attack, an attacker must have write access to the git repository or plugin archive (.tgz) while being downloaded (which can occur during a MITM attack on a non-SSL connection). This issue has been patched in Helm 2.16.11 and Helm 3.3.2. As a possible workaround make sure to install plugins using a secure connection protocol like SSL.
CVSS v3 Severity:4.7 Medium (CVSS v3.1 Vector: CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:U/C:L/I:L/A:L)
4.1 Medium (Temporal CVSS v3.1 Vector: CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:U/C:L/I:L/A:L/E:U/RL:O/RC:C)
Exploitability Metrics:Attack Vector (AV): Network
Attack Complexity (AC): Low
Privileges Required (PR): High
User Interaction (UI): None
Scope:Scope (S): Unchanged
Impact Metrics:Confidentiality (C): Low
Integrity (I): Low
Availibility (A): Low
6.3 Medium (CCN CVSS v3.1 Vector: CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:L/I:L/A:L)
5.5 Medium (CCN Temporal CVSS v3.1 Vector: CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:L/I:L/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): Low
Availibility (A): Low
CVSS v2 Severity:6.5 Medium (CVSS v2 Vector: AV:N/AC:L/Au:S/C:P/I:P/A:P)
Exploitability Metrics:Access Vector (AV): Network
Access Complexity (AC): Low
Authentication (Au): Single_Instance
Impact Metrics:Confidentiality (C): Partial
Integrity (I): Partial
Availibility (A): Partial
6.5 Medium (CCN CVSS v2 Vector: AV:N/AC:L/Au:S/C:P/I:P/A:P)
Exploitability Metrics:Access Vector (AV): Network
Access Complexity (AC): Low
Athentication (Au): Single_Instance
Impact Metrics:Confidentiality (C): Partial
Integrity (I): Partial
Availibility (A): Partial
Vulnerability Type:CWE-74
CWE-694
Vulnerability Consequences:Bypass Security
References:Source: MITRE
Type: CNA
CVE-2020-15187

Source: XF
Type: UNKNOWN
helm-cve202015187-sec-bypass(188456)

Source: MISC
Type: Patch, Third Party Advisory
https://github.com/helm/helm/commit/d9ef5ce8bad512e325390c0011be1244b8380e4b

Source: CCN
Type: Helm GIT Repository
plugin.yaml file allows for duplicate entries

Source: CONFIRM
Type: Third Party Advisory
https://github.com/helm/helm/security/advisories/GHSA-c52f-pq47-2r9j

Source: CCN
Type: IBM Security Bulletin 6417481 (Cloud Private)
IBM Cloud Private is vulnerable to Helm vulnerabilities (CVE-2020-15187, CVE-2020-15186, CVE-2020-15185, CVE-2020-15184)

Source: CCN
Type: IBM Security Bulletin 6452959 (Spectrum Discover)
Vulnerabilities in the Python, Docker, and ICP affect IBM Spectrum Discover

Source: CCN
Type: IBM Security Bulletin 6832428 (Db2 On Openshift)
Multiple vulnerabilities affect IBM Db2 On Openshift, IBM Db2 on Cloud Pak for Data and Db2 Warehouse on Cloud Pak for Data

Vulnerable Configuration:Configuration 1:
  • cpe:/a:helm:helm:*:*:*:*:*:*:*:* (Version >= 2.0.0 and < 2.16.11)
  • OR cpe:/a:helm:helm:*:*:*:*:*:*:*:* (Version >= 3.0.0 and < 3.3.2)

    • Configuration CCN 1:
  • cpe:/a:helm:helm:2.0.0:-:*:*:*:*:*:*
  • OR cpe:/a:helm:helm:3.0.0:-:*:*:*:*:*:*
  • OR cpe:/a:helm:helm:2.16.10:*:*:*:*:*:*:*
  • OR cpe:/a:helm:helm:3.3.1:*:*:*:*:*:*:*
  • AND
  • cpe:/a:ibm:cloud_private:3.2.1:cd:*:*:*:*:*:*
  • OR cpe:/a:ibm:cloud_private:3.2.2:cd:*:*:*:*:*:*

    • * Denotes that component is vulnerable
    Oval Definitions
    Definition IDClassTitleLast Modified
    oval:org.opensuse.security:def:202015187
    V
    		CVE-2020-15187
    2022-08-07
    oval:org.opensuse.security:def:3783
    P
    		Security update for the Linux Kernel (Important)
    2022-07-21
    oval:org.opensuse.security:def:90494
    P
    		Security changes in Kubernetes, etcd, and helm; Bugfix in cri-o package (Moderate)
    2020-12-23
    oval:org.opensuse.security:def:104149
    P
    		Security changes in Kubernetes, etcd, and helm; Bugfix in cri-o package (Moderate)
    2020-12-23
    oval:org.opensuse.security:def:97459
    P
    		Security changes in Kubernetes, etcd, and helm; Bugfix in cri-o package (Moderate)
    2020-12-23
    oval:org.opensuse.security:def:64872
    P
    		Security changes in Kubernetes, etcd, and helm; Bugfix in cri-o package (Moderate)
    2020-12-23
    BACK
    helm helm *
    helm helm *
    helm helm 2.0.0 -
    helm helm 3.0.0 -
    helm helm 2.16.10
    helm helm 3.3.1
    ibm cloud private 3.2.1 cd
    ibm cloud private 3.2.2 cd