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Test ID:1.3.6.1.4.1.25623.1.1.2.2020.2218
Category:Huawei EulerOS Local Security Checks
Title:Huawei EulerOS: Security Advisory for bash (EulerOS-SA-2020-2218)
Summary:The remote host is missing an update for the Huawei EulerOS; 'bash' package(s) announced via the EulerOS-SA-2020-2218 advisory.
Description:Summary:
The remote host is missing an update for the Huawei EulerOS
'bash' package(s) announced via the EulerOS-SA-2020-2218 advisory.

Vulnerability Insight:
An issue was discovered in disable_priv_mode in shell.c in GNU Bash through 5.0 patch 11. By default, if Bash is run with its effective UID not equal to its real UID, it will drop privileges by setting its effective UID to its real UID. However, it does so incorrectly. On Linux and other systems that support 'saved UID' functionality, the saved UID is not dropped. An attacker with command execution in the shell can use 'enable -f' for runtime loading of a new builtin, which can be a shared object that calls setuid() and therefore regains privileges. However, binaries running with an effective UID of 0 are unaffected.(CVE-2019-18276)

Affected Software/OS:
'bash' package(s) on Huawei EulerOS Virtualization 3.0.2.2.

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-2019-18276
CopyrightCopyright (C) 2020 Greenbone Networks GmbH

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