Detections
Analytics
EulerOS 2.0 SP8 : systemd (EulerOS-SA-2019-1661)
high Nessus Plugin ID 126288
Language:
Synopsis
The remote EulerOS host is missing multiple security updates.Description
According to the versions of the systemd packages installed, the EulerOS installation on the remote host is affected by the following vulnerabilities :- It was discovered that a systemd service that uses DynamicUser property can get new privileges through the execution of SUID binaries, which would allow a cooperating process to create binaries owned by the service transient group with the setgid bit set. A local attacker may use this flaw to access resources that will be owned by a potentially different service in the future when the GID will be recycled.(CVE-2019-3844)
- It was discovered that a systemd service that uses DynamicUser property can create a SUID/SGID binary that would be allowed to run as the transient service UID/GID even after the service is terminated. A local attacker may use this flaw to access resources that will be owned by a potentially different service in the future when the UID/GID will be recycled.(CVE-2019-3843)
- In systemd before v242-rc4, it was discovered that pam_systemd does not properly sanitize the environment before using the XDG_SEAT variable. It is possible for an attacker, in some particular configurations, to set a XDG_SEAT environment variable which allows for commands to be checked against polkit policies using the 'allow_active' element rather than 'allow_any'.(CVE-2019-3842)
Note that Tenable Network Security has extracted the preceding description block directly from the EulerOS security advisory. Tenable has attempted to automatically clean and format it as much as possible without introducing additional issues.
Solution
Update the affected systemd packages.See Also
Plugin Details
Severity: High
ID: 126288
File Name: EulerOS_SA-2019-1661.nasl
Version: 1.5
Type: local
Family: Huawei Local Security Checks
Published: 6/27/2019
Updated: 1/6/2021
Supported Sensors: Nessus
Risk Information
VPR
Risk Factor: Medium
Score: 6.7
CVSS v2
Risk Factor: Medium
Base Score: 4.6
Temporal Score: 3.6
Vector: CVSS2#AV:L/AC:L/Au:N/C:P/I:P/A:P
CVSS v3
Risk Factor: High
Base Score: 7.8
Temporal Score: 7
Vector: CVSS:3.0/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
Temporal Vector: CVSS:3.0/E:P/RL:O/RC:C
Vulnerability Information
CPE: p-cpe:/a:huawei:euleros:systemd, p-cpe:/a:huawei:euleros:systemd-container, p-cpe:/a:huawei:euleros:systemd-devel, p-cpe:/a:huawei:euleros:systemd-journal-remote, p-cpe:/a:huawei:euleros:systemd-libs, p-cpe:/a:huawei:euleros:systemd-pam, p-cpe:/a:huawei:euleros:systemd-udev, p-cpe:/a:huawei:euleros:systemd-udev-compat, cpe:/o:huawei:euleros:2.0
Required KB Items: Host/local_checks_enabled, Host/EulerOS/release, Host/EulerOS/rpm-list, Host/EulerOS/sp
Excluded KB Items: Host/EulerOS/uvp_version
Exploit Available: true
Exploit Ease: Exploits are available
Patch Publication Date: 6/27/2019