PT-2021-14570 · Dell Emc · Dell Openmanage Server Administrator

David Yesland · CVE-2021-21514 · Published 2021-03-02 · Updated 2024-03-23

Positive Technologies (AI Summary)

CVSS v3.1

4.9

Medium

Base vector

AV:N/AC:L/PR:H/UI:N/S:U/C:H/I:N/A:N

Name of the Vulnerable Software and Affected Versions Dell EMC OpenManage Server Administrator (OMSA) versions 9.5 and prior

Description The issue allows a remote user with admin privileges to potentially view arbitrary files on the target system by sending a specially crafted URL request. This can be exploited to gain access to sensitive information, such as user credentials in configuration files. In real-world incidents, this issue has been used to bypass Windows Defender, impersonate a service, and gain SYSTEM level access.

Recommendations For versions 9.5 and prior, consider restricting access to the admin interface until a patch is available. As a temporary workaround, consider disabling the ability to send specially crafted URL requests to the affected system until a patch is available. Restrict access to sensitive files and configuration files to minimize the risk of exploitation.

Fix

Path traversal

Weakness Enumeration

CWE-22

Related Identifiers

CVE-2021-21514

Affected Products

Dell Openmanage Server Administrator

References · 8

• https://nvd.nist.gov/vuln/detail/CVE-2021-21514 · Security Note
• https://dell.com/support/kbdoc/en-us/000183670/dsa-2021-040-dell-emc-openmanage-server-administrator-omsa-security-update-for-multiple-vulnerabilities · Vendor Advisory
• https://osv.dev/vulnerability/CVE-2021-21514 · Vendor Advisory
• https://t.me/cibsecurity/24343 · Telegram Post
• https://twitter.com/powerctf/status/1771591177915023487 · Twitter Post
• https://twitter.com/stratosberry/status/1733858197092397223 · Twitter Post
• https://t.me/cvenotify/10728 · Telegram Post
• https://t.me/cvenotify/10732 · Telegram Post