Vulnerability Name:

CVE-2021-22136 (CCN-202058)

Assigned:2021-03-23
Published:2021-03-23
Updated:2021-05-21
Summary:In Kibana versions before 7.12.0 and 6.8.15 a flaw in the session timeout was discovered where the xpack.security.session.idleTimeout setting is not being respected. This was caused by background polling activities unintentionally extending authenticated users sessions, preventing a user session from timing out.
CVSS v3 Severity:3.5 Low (CVSS v3.1 Vector: CVSS:3.1/AV:P/AC:L/PR:N/UI:N/S:U/C:L/I:L/A:N)
3.1 Low (Temporal CVSS v3.1 Vector: CVSS:3.1/AV:P/AC:L/PR:N/UI:N/S:U/C:L/I:L/A:N/E:U/RL:O/RC:C)
Exploitability Metrics:Attack Vector (AV): Physical
Attack Complexity (AC): Low
Privileges Required (PR): None
User Interaction (UI): None
Scope:Scope (S): Unchanged
Impact Metrics:Confidentiality (C): Low
Integrity (I): Low
Availibility (A): None
4.0 Medium (CCN CVSS v3.1 Vector: CVSS:3.1/AV:P/AC:H/PR:N/UI:R/S:U/C:H/I:N/A:N)
3.5 Low (CCN Temporal CVSS v3.1 Vector: CVSS:3.1/AV:P/AC:H/PR:N/UI:R/S:U/C:H/I:N/A:N/E:U/RL:O/RC:C)
Exploitability Metrics:Attack Vector (AV): Physical
Attack Complexity (AC): High
Privileges Required (PR): None
User Interaction (UI): Required
Scope:Scope (S): Unchanged
Impact Metrics:Confidentiality (C): High
Integrity (I): None
Availibility (A): None
CVSS v2 Severity:3.6 Low (CVSS v2 Vector: AV:L/AC:L/Au:N/C:P/I:P/A:N)
Exploitability Metrics:Access Vector (AV): Local
Access Complexity (AC): Low
Authentication (Au): None
Impact Metrics:Confidentiality (C): Partial
Integrity (I): Partial
Availibility (A): None
3.8 Low (CCN CVSS v2 Vector: AV:L/AC:H/Au:S/C:C/I:N/A:N)
Exploitability Metrics:Access Vector (AV): Local
Access Complexity (AC): High
Athentication (Au): Single_Instance
Impact Metrics:Confidentiality (C): Complete
Integrity (I): None
Availibility (A): None
Vulnerability Type:CWE-613
Vulnerability Consequences:Bypass Security
References:Source: MITRE
Type: CNA
CVE-2021-22136

Source: CCN
Type: Elasticsearch ESA-2021-07
Kibana Timeout Bypass

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
elastic-cve202122136-sec-bypass(202058)

Vulnerable Configuration:Configuration 1:
  • cpe:/a:elastic:kibana:*:*:*:*:*:*:*:* (Version < 6.8.15)
  • OR cpe:/a:elastic:kibana:*:*:*:*:*:*:*:* (Version >= 7.0.0 and < 7.12.0)

    • Configuration CCN 1:
  • cpe:/a:elastic:kibana:6.8.0:*:*:*:*:*:*:*

    • * Denotes that component is vulnerable
    BACK
    elastic kibana *
    elastic kibana *
    elasticsearch kibana 6.8.0