Vulnerability Name:

CVE-2021-32743 (CCN-205589)

Assigned:2021-07-15
Published:2021-07-15
Updated:2021-12-06
Summary:Icinga is a monitoring system which checks the availability of network resources, notifies users of outages, and generates performance data for reporting. In versions prior to 2.11.10 and from version 2.12.0 through version 2.12.4, some of the Icinga 2 features that require credentials for external services expose those credentials through the API to authenticated API users with read permissions for the corresponding object types. IdoMysqlConnection and IdoPgsqlConnection (every released version) exposes the password of the user used to connect to the database. IcingaDB (added in 2.12.0) exposes the password used to connect to the Redis server. ElasticsearchWriter (added in 2.8.0)exposes the password used to connect to the Elasticsearch server. An attacker who obtains these credentials can impersonate Icinga to these services and add, modify and delete information there. If credentials with more permissions are in use, this increases the impact accordingly. Starting with the 2.11.10 and 2.12.5 releases, these passwords are no longer exposed via the API. As a workaround, API user permissions can be restricted to not allow querying of any affected objects, either by explicitly listing only the required object types for object query permissions, or by applying a filter rule.
CVSS v3 Severity:8.8 High (CVSS v3.1 Vector: CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H)
7.7 High (Temporal CVSS v3.1 Vector: CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H/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): High
Integrity (I): High
Availibility (A): High
8.8 High (CCN CVSS v3.1 Vector: CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H)
7.7 High (CCN Temporal CVSS v3.1 Vector: CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H/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): High
Integrity (I): High
Availibility (A): High
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
9.0 High (CCN CVSS v2 Vector: AV:N/AC:L/Au:S/C:C/I:C/A:C)
Exploitability Metrics:Access Vector (AV): Network
Access Complexity (AC): Low
Athentication (Au): Single_Instance
Impact Metrics:Confidentiality (C): Complete
Integrity (I): Complete
Availibility (A): Complete
Vulnerability Type:CWE-202
Vulnerability Consequences:Obtain Information
References:Source: MITRE
Type: CNA
CVE-2021-32743

Source: XF
Type: UNKNOWN
icinga-cve202132743-info-disc(205589)

Source: CCN
Type: Icinga GIT Repository
Passwords used to access external services inadvertently exposed through API

Source: CONFIRM
Type: Exploit, Third Party Advisory
https://github.com/Icinga/icinga2/security/advisories/GHSA-wrpw-pmr8-qgj7

Source: MISC
Type: Exploit, Vendor Advisory
https://icinga.com/blog/2021/07/15/releasing-icinga-2-12-5-and-2-11-10/

Source: MLIST
Type: Mailing List, Third Party Advisory
[debian-lts-announce] 20211110 [SECURITY] [DLA 2816-1] icinga2 security update

Vulnerable Configuration:Configuration 1:
  • cpe:/a:icinga:icinga:*:*:*:*:*:*:*:* (Version >= 2.0.0 and < 2.11.10)
  • OR cpe:/a:icinga:icinga:*:*:*:*:*:*:*:* (Version >= 2.12.0 and < 2.12.5)

  • Configuration 2:
  • cpe:/o:debian:debian_linux:9.0:*:*:*:*:*:*:*

  • Configuration CCN 1:
  • cpe:/a:icinga:icinga:2.12.0:-:*:*:*:*:*:*
  • OR cpe:/a:icinga:icinga:2.11.0:-:*:*:*:*:*:*

  • * Denotes that component is vulnerable
    Oval Definitions
    Definition IDClassTitleLast Modified
    oval:org.opensuse.security:def:93631
    P
    (Important)
    2022-02-04
    oval:org.opensuse.security:def:112427
    P
    icinga2-2.13.1-1.3 on GA media (Moderate)
    2022-01-17
    oval:org.opensuse.security:def:100344
    P
    (Moderate)
    2021-10-27
    oval:org.opensuse.security:def:105933
    P
    icinga2-2.13.1-1.3 on GA media (Moderate)
    2021-10-01
    oval:org.opensuse.security:def:96413
    P
    Security update for icinga2 (Moderate)
    2021-07-24
    oval:org.opensuse.security:def:109760
    P
    Security update for icinga2 (Moderate)
    2021-07-24
    oval:org.opensuse.security:def:110989
    P
    Security update for icinga2 (Moderate)
    2021-07-24
    oval:org.opensuse.security:def:11108
    P
    Security update for icinga2 (Moderate)
    2021-07-24
    oval:org.opensuse.security:def:103103
    P
    Security update for icinga2 (Moderate)
    2021-07-24
    oval:org.opensuse.security:def:111489
    P
    Security update for icinga2 (Moderate)
    2021-07-24
    BACK
    icinga icinga *
    icinga icinga *
    debian debian linux 9.0
    icinga icinga 2.12.0 -
    icinga icinga 2.11.0