Vulnerability Name:

CVE-2021-22132 (CCN-194942)

Assigned:2021-01-14
Published:2021-01-14
Updated:2022-05-12
Summary:Elasticsearch versions 7.7.0 to 7.10.1 contain an information disclosure flaw in the async search API. Users who execute an async search will improperly store the HTTP headers. An Elasticsearch user with the ability to read the .tasks index could obtain sensitive request headers of other users in the cluster. This issue is fixed in Elasticsearch 7.10.2
CVSS v3 Severity:4.8 Medium (CVSS v3.1 Vector: CVSS:3.1/AV:N/AC:H/PR:L/UI:R/S:U/C:H/I:N/A:N)
4.2 Medium (Temporal CVSS v3.1 Vector: CVSS:3.1/AV:N/AC:H/PR:L/UI:R/S:U/C:H/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): Required
Scope:Scope (S): Unchanged
Impact Metrics:Confidentiality (C): High
Integrity (I): None
Availibility (A): None
4.8 Medium (CCN CVSS v3.1 Vector: CVSS:3.1/AV:N/AC:H/PR:H/UI:R/S:U/C:H/I:L/A:N)
4.2 Medium (CCN Temporal CVSS v3.1 Vector: CVSS:3.1/AV:N/AC:H/PR:H/UI:R/S:U/C:H/I:L/A:N/E:U/RL:O/RC:C)
Exploitability Metrics:Attack Vector (AV): Network
Attack Complexity (AC): High
Privileges Required (PR): High
User Interaction (UI): Required
Scope:Scope (S): Unchanged
Impact Metrics:Confidentiality (C): High
Integrity (I): Low
Availibility (A): None
CVSS v2 Severity:2.1 Low (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
Authentication (Au): Single_Instance
Impact Metrics:Confidentiality (C): Partial
Integrity (I): None
Availibility (A): None
5.3 Medium (CCN CVSS v2 Vector: AV:N/AC:H/Au:M/C:C/I:P/A:N)
Exploitability Metrics:Access Vector (AV): Network
Access Complexity (AC): High
Athentication (Au): Multiple_Instances
Impact Metrics:Confidentiality (C): Complete
Integrity (I): Partial
Availibility (A): None
Vulnerability Type:CWE-522
Vulnerability Consequences:Obtain Information
References:Source: MITRE
Type: CNA
CVE-2021-22132

Source: CCN
Type: Elasticsearch ESA-2021-01
Elasticsearch authorization-header storage issue

Source: MISC
Type: Release Notes, Vendor Advisory
https://discuss.elastic.co/t/elasticsearch-7-10-2-security-update/261164

Source: XF
Type: UNKNOWN
elastic-cve202122132-info-disc(194942)

Source: CONFIRM
Type: Third Party Advisory
https://security.netapp.com/advisory/ntap-20210219-0004/

Source: CCN
Type: IBM Security Bulletin 6495845 (Observability with Instana)
Vulnerability affects IBM Observability with Instana

Source: CCN
Type: Oracle CPUApr2022
Oracle Critical Patch Update Advisory - April 2022

Source: MISC
Type: Patch, Third Party Advisory
https://www.oracle.com/security-alerts/cpuapr2022.html

Vulnerable Configuration:Configuration 1:
  • cpe:/a:elastic:elasticsearch:*:*:*:*:*:*:*:* (Version >= 7.7.0 and < 7.10.2)

    • Configuration 2:
  • cpe:/a:oracle:communications_cloud_native_core_automated_test_suite:1.8.0:*:*:*:*:*:*:*

    • Configuration CCN 1:
  • cpe:/a:elastic:elasticsearch:7.10.1:*:*:*:*:*:*:*
  • OR cpe:/a:elastic:elasticsearch:7.7.0:*:*:*:*:*:*:*

    • * Denotes that component is vulnerable
    BACK
    elastic elasticsearch *
    oracle communications cloud native core automated test suite 1.8.0
    elastic elasticsearch 7.10.1
    elastic elasticsearch 7.7.0