Vulnerability Name:

CVE-2021-22135 (CCN-201914)

Assigned:2021-03-23
Published:2021-03-23
Updated:2021-09-07
Summary:Elasticsearch versions before 7.11.2 and 6.8.15 contain a document disclosure flaw was found in the Elasticsearch suggester and profile API when Document and Field Level Security are enabled. The suggester and profile API are normally disabled for an index when document level security is enabled on the index. Certain queries are able to enable the profiler and suggester which could lead to disclosing the existence of documents and fields the attacker should not be able to view.
CVSS v3 Severity:5.3 Medium (CVSS v3.1 Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:N/A:N)
4.6 Medium (Temporal CVSS v3.1 Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:N/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): Low
Integrity (I): None
Availibility (A): None
3.1 Low (CCN CVSS v3.1 Vector: CVSS:3.1/AV:N/AC:H/PR:L/UI:N/S:U/C:L/I:N/A:N)
2.7 Low (CCN Temporal CVSS v3.1 Vector: CVSS:3.1/AV:N/AC:H/PR:L/UI:N/S:U/C:L/I:N/A:N/E:U/RL:O/RC:C)
Exploitability Metrics:Attack Vector (AV): Network
Attack Complexity (AC): High
Privileges Required (PR): Low
User Interaction (UI): None
Scope:Scope (S): Unchanged
Impact Metrics:Confidentiality (C): Low
Integrity (I): None
Availibility (A): None
CVSS v2 Severity:4.3 Medium (CVSS v2 Vector: AV:N/AC:M/Au:N/C:P/I:N/A:N)
Exploitability Metrics:Access Vector (AV): Network
Access Complexity (AC): Medium
Authentication (Au): None
Impact Metrics:Confidentiality (C): Partial
Integrity (I): None
Availibility (A): None
2.1 Low (CCN CVSS v2 Vector: AV:N/AC:H/Au:S/C:P/I:N/A:N)
Exploitability Metrics:Access Vector (AV): Network
Access Complexity (AC): High
Athentication (Au): Single_Instance
Impact Metrics:Confidentiality (C): Partial
Integrity (I): None
Availibility (A): None
Vulnerability Type:CWE-200
Vulnerability Consequences:Obtain Information
References:Source: MITRE
Type: CNA
CVE-2021-22135

Source: CCN
Type: Elasticsearch ESA-2021-06
Elasticsearch Suggester & Profile API information disclosure flaw

Source: MISC
Type: Vendor Advisory
https://discuss.elastic.co/t/elastic-stack-7-12-0-and-6-8-15-security-update/268125

Source: XF
Type: UNKNOWN
elasticsearch-cve202122135-info-disc(201914)

Source: CONFIRM
Type: Third Party Advisory
https://security.netapp.com/advisory/ntap-20210625-0003/

Source: CCN
Type: IBM Security Bulletin 6493015 (Resilient OnPrem)
IBM Security SOAR is using a version of Elasticsearch that has known vulnerabilities (CVE-2021-22137, CVE-2021-22135)

Source: CCN
Type: IBM Security Bulletin 6538158 (Cloud Private)
Vulnerability in Elasticsearch affects IBM Cloud Private (CVE-2021-22135, CVE-2021-22137)

Vulnerable Configuration:Configuration 1:
  • cpe:/a:elastic:elasticsearch:*:*:*:*:*:*:*:* (Version < 6.8.15)
  • OR cpe:/a:elastic:elasticsearch:*:*:*:*:*:*:*:* (Version >= 7.11.0 and < 7.11.2)

    • Configuration CCN 1:
  • cpe:/a:elastic:elasticsearch:7.11.0:*:*:*:*:*:*:*
  • OR cpe:/a:elastic:elasticsearch:7.11.1:*:*:*:*:*:*:*
  • OR cpe:/a:elastic:elasticsearch:6.8.14:*:*:*:*:*:*:*
  • 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
    BACK
    elastic elasticsearch *
    elastic elasticsearch *
    elastic elasticsearch 7.11.0
    elastic elasticsearch 7.11.1
    elastic elasticsearch 6.8.14
    ibm cloud private 3.2.1 cd
    ibm cloud private 3.2.2 cd