Vulnerability Name:

CVE-2020-29577 (CCN-192865)

Assigned:2020-12-07
Published:2020-12-07
Updated:2020-12-22
Summary:The official znc docker images before 1.7.1-slim contain a blank password for a root user. Systems using the znc docker container deployed by affected versions of the Docker image may allow an remote attacker to achieve root access with a blank password.
CVSS v3 Severity:9.8 Critical (CVSS v3.1 Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H)
8.5 High (Temporal CVSS v3.1 Vector: CVSS:3.1/AV:N/AC:L/PR:N/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): None
User Interaction (UI): None
Scope:Scope (S): Unchanged
Impact Metrics:Confidentiality (C): High
Integrity (I): High
Availibility (A): High
9.8 Critical (CCN CVSS v3.1 Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H)
8.5 High (CCN Temporal CVSS v3.1 Vector: CVSS:3.1/AV:N/AC:L/PR:N/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): None
User Interaction (UI): None
Scope:Scope (S): Unchanged
Impact Metrics:Confidentiality (C): High
Integrity (I): High
Availibility (A): High
CVSS v2 Severity:10.0 High (CVSS v2 Vector: AV:N/AC:L/Au:N/C:C/I:C/A:C)
Exploitability Metrics:Access Vector (AV): Network
Access Complexity (AC): Low
Authentication (Au): None
Impact Metrics:Confidentiality (C): Complete
Integrity (I): Complete
Availibility (A): Complete
10.0 High (CCN CVSS v2 Vector: AV:N/AC:L/Au:N/C:C/I:C/A:C)
Exploitability Metrics:Access Vector (AV): Network
Access Complexity (AC): Low
Athentication (Au): None
Impact Metrics:Confidentiality (C): Complete
Integrity (I): Complete
Availibility (A): Complete
Vulnerability Type:CWE-Other
Vulnerability Consequences:Bypass Security
References:Source: MITRE
Type: CNA
CVE-2020-29577

Source: XF
Type: UNKNOWN
znc-cve202029577-sec-bypass(192865)

Source: CCN
Type: koharin2 GIT Repository
CVE-2020-29577

Source: MISC
Type: Third Party Advisory
https://github.com/koharin/koharin2/blob/main/CVE-2020-29577

Source: CCN
Type: Docker Web site
znc docker image

Vulnerable Configuration:Configuration 1:
  • cpe:/a:znc:znc_docker_image:1.6:*:*:*:*:*:*:*
  • OR cpe:/a:znc:znc_docker_image:1.6-slim:*:*:*:*:*:*:*
  • OR cpe:/a:znc:znc_docker_image:1.6.4:*:*:*:*:*:*:*
  • OR cpe:/a:znc:znc_docker_image:1.6.4-slim:*:*:*:*:*:*:*
  • OR cpe:/a:znc:znc_docker_image:1.6.5:*:*:*:*:*:*:*
  • OR cpe:/a:znc:znc_docker_image:1.6.5-slim:*:*:*:*:*:*:*
  • OR cpe:/a:znc:znc_docker_image:1.6.6:*:*:*:*:*:*:*
  • OR cpe:/a:znc:znc_docker_image:1.6.6-slim:*:*:*:*:*:*:*
  • OR cpe:/a:znc:znc_docker_image:1.7.0:*:*:*:*:*:*:*
  • OR cpe:/a:znc:znc_docker_image:1.7.0-slim:*:*:*:*:*:*:*
  • OR cpe:/a:znc:znc_docker_image:1.7.1-slim:*:*:*:*:*:*:*

    • * Denotes that component is vulnerable
    BACK
    znc znc docker image 1.6
    znc znc docker image 1.6-slim
    znc znc docker image 1.6.4
    znc znc docker image 1.6.4-slim
    znc znc docker image 1.6.5
    znc znc docker image 1.6.5-slim
    znc znc docker image 1.6.6
    znc znc docker image 1.6.6-slim
    znc znc docker image 1.7.0
    znc znc docker image 1.7.0-slim
    znc znc docker image 1.7.1-slim