Detections
Analytics

Amazon Linux 2 : lasso (ALAS-2021-1660)

high Nessus Plugin ID 150964

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Synopsis

The remote Amazon Linux 2 host is missing a security update.

Description

The version of lasso installed on the remote host is prior to 2.5.1-5. It is, therefore, affected by a vulnerability as referenced in the ALAS2-2021-1660 advisory.

 An XML Signature Wrapping (XSW) vulnerability was found in Lasso. This flaw allows an attacker to modify a valid SAML response to include an unsigned SAML assertion, which may be used to impersonate another valid user recognized by the service using Lasso. The highest threat from this vulnerability is to data confidentiality and integrity as well as service availability. (CVE-2021-28091)

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

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

Solution

Run 'yum update lasso' to update your system.

See Also

https://alas.aws.amazon.com/AL2/ALAS-2021-1660.html

https://access.redhat.com/security/cve/CVE-2021-28091

Plugin Details

Severity: High

ID: 150964

File Name: al2_ALAS-2021-1660.nasl

Version: 1.3

Type: local

Agent: unix

Published: 6/23/2021

Updated: 12/11/2024

Supported Sensors: Agentless Assessment, Continuous Assessment, Frictionless Assessment Agent, Frictionless Assessment AWS, Nessus Agent, 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:N/I:P/A:N

CVSS Score Source: CVE-2021-28091

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:N/I:H/A:N

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

Vulnerability Information

CPE: p-cpe:/a:amazon:linux:lasso-python, p-cpe:/a:amazon:linux:lasso, cpe:/o:amazon:linux:2, p-cpe:/a:amazon:linux:lasso-debuginfo, p-cpe:/a:amazon:linux:lasso-devel

Required KB Items: Host/local_checks_enabled, Host/AmazonLinux/release, Host/AmazonLinux/rpm-list

Exploit Ease: No known exploits are available

Patch Publication Date: 6/16/2021

Vulnerability Publication Date: 6/2/2021

Reference Information

CVE: CVE-2021-28091

ALAS: 2021-1660