PT-2021-5589 · Commvault · Commvault Commcell

Brandon Perry + 2 · Published 2021-06-30 · Updated 2022-01-22 · CVE-2021-34993

Positive Technologies (AI Summary)

CVSS v3.1

10

Critical

Base vector

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

Name of the Vulnerable Software and Affected Versions Commvault CommCell version 11.22.22

Description The issue is related to the CVSearchService service and is caused by inadequate validation prior to authentication, allowing remote attackers to bypass authentication on affected installations. This can enable an attacker to gain unauthorized access to the system without requiring authentication. The specific flaw exists within the CVSearchService service.

Recommendations For Commvault CommCell version 11.22.22, consider disabling the CVSearchService service until a patch is available to prevent exploitation. Restrict access to the CVSearchService to minimize the risk of unauthorized access. Apply proper validation prior to authentication to prevent bypassing authentication. At the moment, there is no information about a newer version that contains a fix for this vulnerability.

Improper Authentication

Weakness Enumeration

CWE-287

Related Identifiers

BDU:2022-00020

CVE-2021-34993

ZDI-21-1328

Affected Products

Commvault Commcell

References · 7

• https://zerodayinitiative.com/advisories/ZDI-21-1328 · Security Note
• https://nvd.nist.gov/vuln/detail/CVE-2021-34993 · Security Note
• https://bdu.fstec.ru/vul/2022-00020 · Security Note
• https://osv.dev/vulnerability/CVE-2021-34993 · Vendor Advisory
• https://cybersecurity-help.cz/vdb/SB2021112404 · Note
• https://t.me/cibsecurity/35462 · Telegram Post
• https://t.me/cvenotify/25455 · Telegram Post