SB2022092307 - Multiple vulnerabilities in Dell PowerScale OneFS

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Main Vulnerability Database SB2022092307

SB2022092307 - Multiple vulnerabilities in Dell PowerScale OneFS

Published: September 23, 2022

Security Bulletin ID SB2022092307
Severity
Low
Patch available
YES
Number of vulnerabilities 4
Exploitation vector Local access
Highest impact Code execution

Breakdown by Severity

Low 100%
  • Low
  • Medium
  • High
  • Critical

Description

This security bulletin contains information about 4 secuirty vulnerabilities.


1) Improper Check for Dropped Privileges (CVE-ID: CVE-2019-18276)

The vulnerability allows a local user to escalate privileges on the system.

The vulnerability exists in "disable_priv_mode()" function in shell.c due to the affected software attempts to drop privileges but does not check or incorrectly checks to see if the drop succeeded. A local user 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.


2) Input validation error (CVE-ID: CVE-2019-9924)

The vulnerability allows a local user to execute arbitrary code.

The vulnerability exists due to "rbash" does not prevent the shell user from modifying BASH_CMDS. A local authenticate user can execute any command with the permissions of the shell.


3) Use-after-free (CVE-ID: CVE-2016-9401)

The vulnerability allows a local authenticated user to perform a denial of service (DoS) attack.

popd in bash might allow local users to bypass the restricted shell and cause a use-after-free via a crafted address.


4) Command injection (CVE-ID: CVE-2016-7543)

The vulnerability allows a local attacker to execute arbitrary commands on the target system.

The weakness exists due to insufficient validation of user-supplied input. A local attacker can supply specially crafted SHELLOPTS and PS4 environment variables, inject and execute arbitrary commands with root privileges.

Remediation

Install update from vendor's website.

References