Detections
Analytics
Ubuntu 18.04 LTS / 20.04 LTS : PySAML2 vulnerability (USN-5066-1)
medium Nessus Plugin ID 153139
Language:
Synopsis
The remote Ubuntu host is missing a security update.Description
The remote Ubuntu 18.04 LTS / 20.04 LTS host has packages installed that are affected by a vulnerability as referenced in the USN-5066-1 advisory.Brian Wolff discovered that PySAML2 incorrectly validated cryptographic signatures. A remote attacker could possibly use this issue to alter SAML documents.
Tenable has extracted the preceding description block directly from the Ubuntu 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
Update the affected python-pysaml2 and / or python3-pysaml2 packages.See Also
Plugin Details
Severity: Medium
ID: 153139
File Name: ubuntu_USN-5066-1.nasl
Version: 1.5
Type: local
Agent: unix
Family: Ubuntu Local Security Checks
Published: 9/8/2021
Updated: 8/27/2024
Supported Sensors: Agentless Assessment, Continuous Assessment, Frictionless Assessment Agent, Frictionless Assessment AWS, Frictionless Assessment Azure, Nessus Agent, Nessus
Risk Information
VPR
Risk Factor: Medium
Score: 4.4
CVSS v2
Risk Factor: Medium
Base Score: 4.3
Temporal Score: 3.4
Vector: CVSS2#AV:N/AC:M/Au:N/C:N/I:P/A:N
CVSS Score Source: CVE-2021-21239
CVSS v3
Risk Factor: Medium
Base Score: 6.5
Temporal Score: 5.9
Vector: CVSS:3.0/AV:N/AC:L/PR:N/UI:R/S:U/C:N/I:H/A:N
Temporal Vector: CVSS:3.0/E:P/RL:O/RC:C
Vulnerability Information
CPE: p-cpe:/a:canonical:ubuntu_linux:python-pysaml2, cpe:/o:canonical:ubuntu_linux:18.04:-:lts, cpe:/o:canonical:ubuntu_linux:20.04:-:lts, p-cpe:/a:canonical:ubuntu_linux:python3-pysaml2
Required KB Items: Host/cpu, Host/Ubuntu, Host/Ubuntu/release, Host/Debian/dpkg-l
Exploit Available: true
Exploit Ease: Exploits are available
Patch Publication Date: 9/8/2021
Vulnerability Publication Date: 1/21/2021
Reference Information
CVE: CVE-2021-21239
USN: 5066-1