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Ubuntu 16.04 ESM / 18.04 ESM / 20.04 ESM : Adminer vulnerabilities (USN-5271-1)

high Nessus Plugin ID 183127

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Synopsis

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

Description

The remote Ubuntu 16.04 ESM / 18.04 ESM / 20.04 ESM host has a package installed that is affected by multiple vulnerabilities as referenced in the USN-5271-1 advisory.

 It was discovered that Adminer did not escape data in the history parameter of the default URI. A remote attacker could possibly use this issue to perform cross-site scripting (XSS) attacks. This issue only affected Ubuntu 20.04 ESM. (CVE-2020-35572)

 Adam Crosser and Brian Sizemore discovered that Adminer incorrectly handled redirection requests to internal servers. An unauthenticated remote attacker could possibly use this to perform a server-side request forgery attack and expose sensitive information. (CVE-2021-21311)

 It was discovered that Adminer was incorrectly escaping data in the doc_link function. A remote attacker could possibly use this issue to perform cross-site scripting (XSS) attacks. This issue only affected Ubuntu 18.04 ESM and Ubuntu 20.04 ESM. (CVE-2021-29625)

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 adminer package.

See Also

https://ubuntu.com/security/notices/USN-5271-1

Plugin Details

Severity: High

ID: 183127

File Name: ubuntu_USN-5271-1.nasl

Version: 1.3

Type: local

Agent: unix

Published: 10/16/2023

Updated: 9/30/2025

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

Risk Information

VPR

Risk Factor: Medium

Score: 4.6

CVSS v2

Risk Factor: Medium

Base Score: 6.4

Temporal Score: 5.3

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

CVSS Score Source: CVE-2021-21311

CVSS v3

Risk Factor: High

Base Score: 7.2

Temporal Score: 6.7

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

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

Vulnerability Information

CPE: cpe:/o:canonical:ubuntu_linux:18.04:-:esm, cpe:/o:canonical:ubuntu_linux:16.04:-:esm, p-cpe:/a:canonical:ubuntu_linux:adminer, cpe:/o:canonical:ubuntu_linux:20.04:-:esm

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

Exploit Available: true

Exploit Ease: Exploits are available

Patch Publication Date: 6/3/2022

Vulnerability Publication Date: 2/9/2021

CISA Known Exploited Vulnerability Due Dates: 10/20/2025

Reference Information

CVE: CVE-2020-35572, CVE-2021-21311, CVE-2021-29625

USN: 5271-1