Multiple vulnerabilities in Dell EMC iDRAC



Published: 2022-11-18 | Updated: 2023-09-18
Risk Medium
Patch available YES
Number of vulnerabilities 2
CVE-ID CVE-2021-36346
CVE-2021-3712
CWE-ID CWE-20
CWE-125
Exploitation vector Network
Public exploit Public exploit code for vulnerability #1 is available.
Vulnerable software
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iDRAC9
Web applications / Remote management & hosting panels

iDRAC8
Web applications / Remote management & hosting panels

Vendor Dell

Security Bulletin

This security bulletin contains information about 2 vulnerabilities.

1) Input validation error

EUVDB-ID: #VU66163

Risk: Medium

CVSSv3.1: 6.7 [CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H/E:P/RL:O/RC:C]

CVE-ID: CVE-2021-36346

CWE-ID: CWE-20 - Improper input validation

Exploit availability: Yes

Description

The vulnerability allows a remote attacker to perform a denial of service (DoS) attack.

The vulnerability exists due to insufficient validation of user-supplied input. A remote attacker can pass specially crafted input to the application and perform a denial of service (DoS) attack.

Mitigation

Install update from vendor's website.

Vulnerable software versions

iDRAC9: before 5.00.10.00

iDRAC8: before 2.80.80.80

External links

http://www.dell.com/support/kbdoc/en-us/000191229/dsa-2021-177-dell-emc-idrac-security-update-for-multiple-security-vulnerabilities


Q & A

Can this vulnerability be exploited remotely?

Yes. This vulnerability can be exploited by a remote non-authenticated attacker via the Internet.

Is there known malware, which exploits this vulnerability?

No. We are not aware of malware exploiting this vulnerability. However, proof of concept for this vulnerability is available.

2) Out-of-bounds read

EUVDB-ID: #VU56064

Risk: Medium

CVSSv3.1: 5.7 [CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:N/A:L/E:U/RL:O/RC:C]

CVE-ID: CVE-2021-3712

CWE-ID: CWE-125 - Out-of-bounds read

Exploit availability: No

Description

The vulnerability allows a remote attacker to gain access to potentially sensitive information.

The vulnerability exists due to a boundary condition when processing ASN.1 strings related to a confusion with NULL termination of strings in array. A remote attacker can pass specially crafted data to the application to trigger an out-of-bounds read error and read contents of memory on the system or perform a denial of service (DoS) attack.

Mitigation

Install update from vendor's website.

Vulnerable software versions

iDRAC9: before 5.00.10.00

iDRAC8: before 2.80.80.80

External links

http://www.dell.com/support/kbdoc/en-us/000191229/dsa-2021-177-dell-emc-idrac-security-update-for-multiple-security-vulnerabilities


Q & A

Can this vulnerability be exploited remotely?

Yes. This vulnerability can be exploited by a remote non-authenticated attacker via the Internet.

Is there known malware, which exploits this vulnerability?

No. We are not aware of malware exploiting this vulnerability.



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