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Ubuntu 16.04 ESM : Salt vulnerabilities (USN-4769-1)

critical Nessus Plugin ID 183538

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Synopsis

The remote Ubuntu host is missing one or more security updates.

Description

The remote Ubuntu 16.04 ESM host has packages installed that are affected by multiple vulnerabilities as referenced in the USN-4769-1 advisory.

 It was discovered that Salt allowed remote attackers to write to arbitrary files via a special crafted file. An attacker could use this vulnerability to cause a DoS or possibly execute arbitrary code. This issue only affected Ubuntu 14.04 ESM. (CVE-2014-3563)

 Andreas Stieger discovered that Salt exposed git usernames and passwords in log files. An attacker could use this issue to retrieve sensitive information. This issue only affected Ubuntu 14.04 ESM.
 (CVE-2015-6918).

 It was discovered that Salt exposed password authentication credentials in log files. An attacker could use this issue to retrieve sensitive information. This issue only affected Ubuntu 14.04 ESM.
 (CVE-2015-6941)

 It was discovered that Salt allowed remote attackers to write to arbitrary files via a special crafted file. An attacker could use this

 issue to cause a DoS or possibly execute arbitrary code. (CVE-2017-12791, CVE-2017-14695, CVE-2017-14696)

 It was discovered that Salt allowed remote attackers to determine which files exist on the server. An attacker could use this issue to extract sensitive information. This issue only affected Ubuntu 16.04 ESM.
 (CVE-2018-15750)

 It was discovered that Salt allowed users to bypass authentication. An attacker could use this issue to extract sensitive information, execute arbitrary code or crash the server. This issue only affected Ubuntu 16.04 ESM. (CVE-2018-15751)

Tenable has extracted the preceding description block directly from the Ubuntu security advisory.

Note that Nessus has not tested for these issues but has instead relied only on the application's self-reported version number.

Solution

Update the affected packages.

See Also

https://ubuntu.com/security/notices/USN-4769-1

Plugin Details

Severity: Critical

ID: 183538

File Name: ubuntu_USN-4769-1.nasl

Version: 1.1

Type: local

Agent: unix

Published: 10/20/2023

Updated: 8/27/2024

Supported Sensors: Agentless Assessment, Continuous Assessment, Frictionless Assessment Agent, Frictionless Assessment AWS, Frictionless Assessment Azure, Nessus Agent, Nessus

Risk Information

VPR

Risk Factor: Medium

Score: 6.7

CVSS v2

Risk Factor: High

Base Score: 7.5

Temporal Score: 5.5

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

CVSS Score Source: CVE-2018-15751

CVSS v3

Risk Factor: Critical

Base Score: 9.8

Temporal Score: 8.5

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

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

Vulnerability Information

CPE: p-cpe:/a:canonical:ubuntu_linux:salt-cloud, p-cpe:/a:canonical:ubuntu_linux:salt-proxy, p-cpe:/a:canonical:ubuntu_linux:salt-common, p-cpe:/a:canonical:ubuntu_linux:salt-ssh, p-cpe:/a:canonical:ubuntu_linux:salt-master, p-cpe:/a:canonical:ubuntu_linux:salt-api, p-cpe:/a:canonical:ubuntu_linux:salt-syndic, p-cpe:/a:canonical:ubuntu_linux:salt-minion, cpe:/o:canonical:ubuntu_linux:16.04:-:esm

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

Exploit Ease: No known exploits are available

Patch Publication Date: 3/15/2021

Vulnerability Publication Date: 8/21/2014

Reference Information

CVE: CVE-2014-3563, CVE-2015-6918, CVE-2015-6941, CVE-2017-12791, CVE-2017-14695, CVE-2017-14696, CVE-2018-15750, CVE-2018-15751

USN: 4769-1