Test ID:	1.3.6.1.4.1.25623.1.1.2.2022.2527
Category:	Huawei EulerOS Local Security Checks
Title:	Huawei EulerOS: Security Advisory for polkit (EulerOS-SA-2022-2527)
Summary:	The remote host is missing an update for the Huawei EulerOS 'polkit' package(s) announced via the EulerOS-SA-2022-2527 advisory.
Description:	Summary: The remote host is missing an update for the Huawei EulerOS 'polkit' package(s) announced via the EulerOS-SA-2022-2527 advisory. Vulnerability Insight: A local privilege escalation vulnerability was found on polkit's pkexec utility. The pkexec application is a setuid tool designed to allow unprivileged users to run commands as privileged users according predefined policies. The current version of pkexec doesn't handle the calling parameters count correctly and ends trying to execute environment variables as commands. An attacker can leverage this by crafting environment variables in such a way it'll induce pkexec to execute arbitrary code. When successfully executed the attack can cause a local privilege escalation given unprivileged users administrative rights on the target machine.(CVE-2021-4034) Affected Software/OS: 'polkit' package(s) on Huawei EulerOS Virtualization 3.0.6.6. Solution: Please install the updated package(s). CVSS Score: 7.2 CVSS Vector: AV:L/AC:L/Au:N/C:C/I:C/A:C
Cross-Ref:	Common Vulnerability Exposure (CVE) ID: CVE-2021-4034 https://www.secpod.com/blog/local-privilege-escalation-vulnerability-in-major-linux-distributions-cve-2021-4034/ http://packetstormsecurity.com/files/166196/Polkit-pkexec-Local-Privilege-Escalation.html http://packetstormsecurity.com/files/166200/Polkit-pkexec-Privilege-Escalation.html https://access.redhat.com/security/vulnerabilities/RHSB-2022-001 https://bugzilla.redhat.com/show_bug.cgi?id=2025869 https://cert-portal.siemens.com/productcert/pdf/ssa-330556.pdf https://gitlab.freedesktop.org/polkit/polkit/-/commit/a2bf5c9c83b6ae46cbd5c779d3055bff81ded683 https://www.oracle.com/security-alerts/cpuapr2022.html https://www.qualys.com/2022/01/25/cve-2021-4034/pwnkit.txt https://www.starwindsoftware.com/security/sw-20220818-0001/ https://www.suse.com/support/kb/doc/?id=000020564
Copyright	Copyright (C) 2022 Greenbone AG

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