Multiple vulnerabilities in Dell EMC OpenManage Server Administrator



| Updated: 2021-03-03
Risk High
Patch available YES
Number of vulnerabilities 2
CVE-ID CVE-2021-21513
CVE-2021-21514
CWE-ID CWE-287
CWE-22
Exploitation vector Network
Public exploit Public exploit code for vulnerability #1 is available.
Vulnerable software
 Dell EMC OpenManage Server Administrator
Server applications / Other server solutions

Vendor Dell

Security Bulletin

This security bulletin contains information about 2 vulnerabilities.

Updated 03.03.2021
Added vulnerability #2

1) Improper Authentication

EUVDB-ID: #VU51049

Risk: High

CVSSv4.0: 8.9 [CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N/E:P/U:Amber]

CVE-ID: CVE-2021-21513

CWE-ID: CWE-287 - Improper Authentication

Exploit availability: No

Description

The vulnerability allows a remote attacker to bypass authentication process.

The vulnerability exists due to an error in when processing authentication requests. A remote attacker can login to OpenManage Server Administrator (OMSA) as admin without knowing a correct OS username and password on that system.

Mitigation

Install updates from vendor's website.

Vulnerable software versions

Dell EMC OpenManage Server Administrator: before 9.4.0.3

CPE2.3 External links

https://www.tenable.com/security/research/tra-2021-07
https://www.dell.com/support/kbdoc/ru-ua/000183670/dsa-2021-040-dell-emc-openmanage-server-administr...


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) Path traversal

EUVDB-ID: #VU51183

Risk: Low

CVSSv4.0: 4.6 [CVSS:4.0/AV:N/AC:L/AT:N/PR:H/UI:N/VC:H/VI:N/VA:N/SC:N/SI:N/SA:N/E:U/U:Clear]

CVE-ID: CVE-2021-21514

CWE-ID: CWE-22 - Improper Limitation of a Pathname to a Restricted Directory ('Path Traversal')

Exploit availability: No

Description

The vulnerability allows a remote user to perform directory traversal attacks.

The vulnerability exists due to input validation error when processing directory traversal sequences. A remote administrator can send a specially crafted HTTP request and read arbitrary files on the system.

Mitigation

Install update from vendor's website.

Vulnerable software versions

Dell EMC OpenManage Server Administrator: before 9.5.0.1

CPE2.3 External links

https://www.dell.com/support/kbdoc/en-us/000183670/dsa-2021-040-dell-emc-openmanage-server-administrator-omsa-security-update-for-multiple-vulnerabilities


Q & A

Can this vulnerability be exploited remotely?

Yes. This vulnerability can be exploited by a remote authenticated privileged user 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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