Debian DSA-4926-1 : lasso - security update

high Nessus Plugin ID 150310

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Synopsis

The remote Debian host is missing a security-related update.

Description

It was discovered that lasso, a library which implements SAML 2.0 and Liberty Alliance standards, did not properly verify that all assertions in a SAML response were properly signed, allowing an attacker to impersonate users or bypass access control.

Solution

Upgrade the lasso packages.

For the stable distribution (buster), this problem has been fixed in version 2.6.0-2+deb10u1.

See Also

https://security-tracker.debian.org/tracker/source-package/lasso

https://packages.debian.org/source/buster/lasso

https://www.debian.org/security/2021/dsa-4926

Plugin Details

Severity: High

ID: 150310

File Name: debian_DSA-4926.nasl

Version: 1.4

Type: local

Agent: unix

Published: 6/7/2021

Updated: 6/14/2021

Dependencies: ssh_get_info.nasl

Risk Information

CVSS Score Source: CVE-2021-28091

VPR

Risk Factor: Medium

Score: 4.4

CVSS v2

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

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

Vulnerability Information

CPE: p-cpe:/a:debian:debian_linux:lasso, cpe:/o:debian:debian_linux:10.0

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

Exploit Ease: No known exploits are available

Patch Publication Date: 6/3/2021

Vulnerability Publication Date: 6/4/2021

Reference Information

CVE: CVE-2021-28091

DSA: 4926