Debian DLA-2625-1 : courier-authlib security update

high Nessus Plugin ID 148610

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Synopsis

The remote Debian host is missing a security update.

Description

The Debian courier-authlib package before 0.71.1-2 for Courier Authentication Library creates a /run/courier/authdaemon directory with weak permissions, allowing an attacker to read user information.
This may include a cleartext password in some configurations. In general, it includes the user's existence, uid and gids, home and/or Maildir directory, quota, and some type of password information (such as a hash).

For Debian 9 stretch, this problem has been fixed in version 0.66.4-9+deb9u1.

We recommend that you upgrade your courier-authlib packages.

For the detailed security status of courier-authlib please refer to its security tracker page at:
https://security-tracker.debian.org/tracker/courier-authlib

NOTE: Tenable Network Security has extracted the preceding description block directly from the DLA security advisory. Tenable has attempted to automatically clean and format it as much as possible without introducing additional issues.

Solution

Upgrade the affected packages.

Plugin Details

Severity: High

ID: 148610

File Name: debian_DLA-2625.nasl

Version: 1.4

Type: local

Agent: unix

Family: Debian Local Security Checks

Published: 4/15/2021

Updated: 1/12/2024

Supported Sensors: Frictionless Assessment Agent, Nessus Agent, Agentless Assessment, Nessus

Risk Information

VPR

Risk Factor: Low

Score: 3.6

CVSS v2

Risk Factor: Medium

Base Score: 5

Temporal Score: 3.7

Vector: CVSS2#AV:N/AC:L/Au:N/C:P/I:N/A:N

CVSS Score Source: CVE-2021-28374

CVSS v3

Risk Factor: High

Base Score: 7.5

Temporal Score: 6.5

Vector: CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N

Temporal Vector: CVSS:3.0/E:U/RL:O/RC:C

Vulnerability Information

CPE: p-cpe:/a:debian:debian_linux:courier-authdaemon, p-cpe:/a:debian:debian_linux:courier-authlib, p-cpe:/a:debian:debian_linux:courier-authlib-dev, p-cpe:/a:debian:debian_linux:courier-authlib-ldap, p-cpe:/a:debian:debian_linux:courier-authlib-mysql, p-cpe:/a:debian:debian_linux:courier-authlib-pipe, p-cpe:/a:debian:debian_linux:courier-authlib-postgresql, p-cpe:/a:debian:debian_linux:courier-authlib-sqlite, p-cpe:/a:debian:debian_linux:courier-authlib-userdb, cpe:/o:debian:debian_linux:9.0

Required KB Items: Host/local_checks_enabled, Host/Debian/release, Host/Debian/dpkg-l

Exploit Ease: No known exploits are available

Patch Publication Date: 4/14/2021

Vulnerability Publication Date: 3/15/2021

Reference Information

CVE: CVE-2021-28374

Detections

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