Amazon Linux AMI : lasso (ALAS-2021-1529)

high Nessus Plugin ID 153162
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The remote Amazon Linux AMI host is missing a security update.


The version of lasso installed on the remote host is prior to 2.5.1-8.6. It is, therefore, affected by a vulnerability as referenced in the ALAS-2021-1529 advisory.

- Lasso all versions prior to 2.7.0 has improper verification of a cryptographic signature. (CVE-2021-28091)

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


Run 'yum update lasso' to update your system.

See Also

Plugin Details

Severity: High

ID: 153162

File Name: ala_ALAS-2021-1529.nasl

Version: 1.2

Type: local

Agent: unix

Published: 9/9/2021

Updated: 9/9/2021

Dependencies: ssh_get_info.nasl

Risk Information

CVSS Score Source: CVE-2021-28091


Risk Factor: Medium

Score: 4.4


Risk Factor: Medium

Base Score: 5

Temporal Score: 3.7

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

Temporal Vector: E:U/RL:OF/RC:C


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: E:U/RL:O/RC:C

Vulnerability Information

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

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

Exploit Ease: No known exploits are available

Patch Publication Date: 9/2/2021

Vulnerability Publication Date: 6/2/2021

Reference Information

CVE: CVE-2021-28091

ALAS: 2021-1529