Detections
Analytics

Ubuntu 18.04 LTS : OpenStack Keystone vulnerabilities (USN-4480-1)

high Nessus Plugin ID 140178

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Synopsis

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

Description

The remote Ubuntu 18.04 LTS host has packages installed that are affected by multiple vulnerabilities as referenced in the USN-4480-1 advisory.

 It was discovered that OpenStack Keystone incorrectly handled EC2 credentials. An authenticated attacker with a limited scope could possibly create EC2 credentials with escalated permissions. (CVE-2020-12689, CVE-2020-12691)

 It was discovered that OpenStack Keystone incorrectly handled the list of roles provided with OAuth1 access tokens. An authenticated user could possibly end up with more role assignments than intended.
 (CVE-2020-12690)

 It was discovered that OpenStack Keystone incorrectly handled EC2 signature TTL checks. A remote attacker could possibly use this issue to reuse Authorization headers. (CVE-2020-12692)

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 keystone and / or python-keystone packages.

See Also

https://ubuntu.com/security/notices/USN-4480-1

Plugin Details

Severity: High

ID: 140178

File Name: ubuntu_USN-4480-1.nasl

Version: 1.8

Type: local

Agent: unix

Published: 9/2/2020

Updated: 8/29/2024

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: 5.9

CVSS v2

Risk Factor: Medium

Base Score: 6.5

Temporal Score: 4.8

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

CVSS Score Source: CVE-2020-12691

CVSS v3

Risk Factor: High

Base Score: 8.8

Temporal Score: 7.7

Vector: CVSS:3.0/AV:N/AC:L/PR:L/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:keystone, p-cpe:/a:canonical:ubuntu_linux:python-keystone, cpe:/o:canonical:ubuntu_linux:18.04:-:lts

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

Exploit Ease: No known exploits are available

Patch Publication Date: 9/1/2020

Vulnerability Publication Date: 5/7/2020

Reference Information

CVE: CVE-2020-12689, CVE-2020-12690, CVE-2020-12691, CVE-2020-12692

USN: 4480-1