Detections
Analytics
Ubuntu 16.04 LTS / 18.04 LTS / 20.04 LTS : pam_tacplus vulnerability (USN-4521-1)
high Nessus Plugin ID 140701
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Synopsis
The remote Ubuntu host is missing a security update.Description
The remote Ubuntu 16.04 LTS / 18.04 LTS / 20.04 LTS host has a package installed that is affected by a vulnerability as referenced in the USN-4521-1 advisory.It was discovered that pam_tacplus did not properly manage shared secrets if DEBUG loglevel and journald are used. A remote attacker could use this issue to expose sensitive information.
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 libpam-tacplus package.See Also
Plugin Details
Severity: High
ID: 140701
File Name: ubuntu_USN-4521-1.nasl
Version: 1.5
Type: local
Agent: unix
Family: Ubuntu Local Security Checks
Published: 9/21/2020
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: Low
Score: 3.6
CVSS v2
Risk Factor: Medium
Base Score: 4.3
Temporal Score: 3.2
Vector: CVSS2#AV:N/AC:M/Au:N/C:P/I:N/A:N
CVSS Score Source: CVE-2020-13881
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:H/I:N/A:N
Temporal Vector: CVSS:3.0/E:U/RL:O/RC:C
Vulnerability Information
CPE: cpe:/o:canonical:ubuntu_linux:18.04:-:lts, cpe:/o:canonical:ubuntu_linux:20.04:-:lts, p-cpe:/a:canonical:ubuntu_linux:libpam-tacplus, cpe:/o:canonical:ubuntu_linux:16.04:-: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: 9/21/2020
Vulnerability Publication Date: 6/6/2020
Reference Information
CVE: CVE-2020-13881
USN: 4521-1