SB2022092812 - Multiple vulnerabilities in Dell EMC VxRail
Published: September 28, 2022 Updated: April 14, 2025
Breakdown by Severity
- Low
- Medium
- High
- Critical
Description
This security bulletin contains information about 7 secuirty vulnerabilities.
1) Code Injection (CVE-ID: CVE-2021-44228)
The vulnerability allows a remote attacker to execute arbitrary code on the target system.
The vulnerability exists due to improper input validation when processing LDAP requests. A remote attacker can send a specially crafted request to the application and execute arbitrary code on the target system.
Successful exploitation of this vulnerability may result in complete compromise of vulnerable system.
Note, we are aware of attackers exploiting the vulnerability in the wild.
2) Code Injection (CVE-ID: CVE-2021-45046)
The vulnerability allows a remote attacker to compromise the affected system.
The
vulnerability exists due to incomplete patch in Apache Log4j 2.15.0 for
a code injection vulnerability #VU58816 (CVE-2021-44228) in certain
non-default configurations. A remote attacker with control over Thread
Context Map (MDC) input data when the logging configuration uses a
non-default Pattern Layout with either a Context Lookup (for example,
$${ctx:loginId}) or a Thread Context Map pattern (%X, %mdc, or %MDC) can
pass malicious data using a JNDI Lookup pattern and perform a denial of
service (DoS) attack, exfiltrate data or execute arbitrary code.
Later discovery demonstrates a remote code execution on macOS but no other tested environments.
3) Infinite loop (CVE-ID: CVE-2021-45105)
The vulnerability allows a remote attacker to perform a denial of service (DoS) attack.
The vulnerability exists due to infinite loop within the StrSubstitutor class. A remote attacker can pass specially crafted input to the application, consume all available system resources and cause denial of service conditions.
Payload example: ${${::-${::-$${::-j}}}}
4) Heap-based buffer overflow (CVE-ID: CVE-2021-22045)
The vulnerability allows a remote attacker to execute arbitrary code on the target system.
The vulnerability exists due to a boundary error. A remote attacker with access to the guest OS with D-ROM device emulation can trigger heap-based buffer overflow and execute arbitrary code on the hypervisor.
5) Use-after-free (CVE-ID: CVE-2021-22040)
The vulnerability allows a remote user to compromise the affected system.
The vulnerability exists due to a use-after-free error in the XHCI USB controller. A remote user with administrative permissions on the guest OS can trigger a use-after-free error and execute arbitrary code as the virtual machine's VMX process running on the host.
Successful exploitation of the vulnerability may allow an attacker to compromise the hypervisor.
6) Race condition (CVE-ID: CVE-2021-22041)
The vulnerability allows a remote user to escalate privileges on the system.
The vulnerability exists due to a double-fetch vulnerability in the UHCI USB controller. A remote user with administrative permissions on the guest OS can
trigger a race condition and execute arbitrary code as the virtual
machine's VMX process running on the host.
Successful exploitation of the vulnerability may allow an attacker to compromise the hypervisor.
7) Resource management error (CVE-ID: CVE-2021-22050)
The vulnerability allows a remote attacker to perform a denial of service (DoS) attack.
The vulnerability exists due to improper management of internal resources within rhttpproxy. A remote attacker can send crafted slow HTTP POST request to the system and perform a denial of service (DoS) attack.
Remediation
Install update from vendor's website.