Vulnerability Name:

CVE-2020-3812 (CCN-182373)

Assigned:2019-12-17
Published:2020-05-21
Updated:2022-04-28
Summary:qmail-verify as used in netqmail 1.06 is prone to an information disclosure vulnerability. A local attacker can test for the existence of files and directories anywhere in the filesystem because qmail-verify runs as root and tests for the existence of files in the attacker's home directory, without dropping its privileges first.
CVSS v3 Severity:5.5 Medium (CVSS v3.1 Vector: CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:N)
4.9 Medium (Temporal CVSS v3.1 Vector: CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:N/E:U/RL:U/RC:R)
Exploitability Metrics:Attack Vector (AV): Local
Attack Complexity (AC): Low
Privileges Required (PR): Low
User Interaction (UI): None
Scope:Scope (S): Unchanged
Impact Metrics:Confidentiality (C): High
Integrity (I): None
Availibility (A): None
4.0 Medium (CCN CVSS v3.1 Vector: CVSS:3.1/AV:L/AC:L/PR:N/UI:N/S:U/C:L/I:N/A:N)
3.5 Low (CCN Temporal CVSS v3.1 Vector: CVSS:3.1/AV:L/AC:L/PR:N/UI:N/S:U/C:L/I:N/A:N/E:U/RL:U/RC:R)
Exploitability Metrics:Attack Vector (AV): Local
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
CVSS v2 Severity:2.1 Low (CVSS v2 Vector: AV:L/AC:L/Au:N/C:P/I:N/A:N)
Exploitability Metrics:Access Vector (AV): Local
Access Complexity (AC): Low
Authentication (Au): None
Impact Metrics:Confidentiality (C): Partial
Integrity (I): None
Availibility (A): None
2.1 Low (CCN CVSS v2 Vector: AV:L/AC:L/Au:N/C:P/I:N/A:N)
Exploitability Metrics:Access Vector (AV): Local
Access Complexity (AC): Low
Athentication (Au): None
Impact Metrics:Confidentiality (C): Partial
Integrity (I): None
Availibility (A): None
Vulnerability Type:CWE-269
Vulnerability Consequences:Obtain Information
References:Source: MITRE
Type: CNA
CVE-2020-3812

Source: CONFIRM
Type: Issue Tracking, Third Party Advisory
N/A

Source: CCN
Type: Qmail Web site
Qmail

Source: XF
Type: UNKNOWN
qmail-cve20203812-info-disc(182373)

Source: MLIST
Type: Mailing List, Third Party Advisory
[debian-lts-announce] 20200604 [SECURITY] [DLA 2234-1] netqmail security update

Source: CCN
Type: Packet Storm Security [05-21-2020]
Qualys Security Advisory - Qmail Remote Code Execution

Source: UBUNTU
Type: Third Party Advisory
USN-4556-1

Source: MISC
Type: Third Party Advisory
https://www.debian.org/security/2020/dsa-4692

Source: CONFIRM
Type: Exploit, Mailing List, Patch, Third Party Advisory
N/A

Source: CCN
Type: WhiteSource Vulnerability Database
CVE-2020-3812

Vulnerable Configuration:Configuration 1:
  • cpe:/a:netqmail:netqmail:1.06:*:*:*:*:*:*:*

    • Configuration 2:
  • cpe:/o:debian:debian_linux:8.0:*:*:*:*:*:*:*
  • OR cpe:/o:debian:debian_linux:9.0:*:*:*:*:*:*:*
  • OR cpe:/o:debian:debian_linux:10.0:*:*:*:*:*:*:*

    • Configuration 3:
  • cpe:/o:canonical:ubuntu_linux:20.04:*:*:*:lts:*:*:*

    • Configuration CCN 1:
  • cpe:/a:dan_bernstein:qmail:*:*:*:*:*:*:*:*

    • * Denotes that component is vulnerable
    BACK
    netqmail netqmail 1.06
    debian debian linux 8.0
    debian debian linux 9.0
    debian debian linux 10.0
    canonical ubuntu linux 20.04
    dan_bernstein qmail *