CVE-2021-27877

Published on: 03/01/2021 12:00:00 AM UTC

Last Modified on: 09/27/2022 08:15:00 PM UTC

CVE-2021-27877

CVSS:3.1/AC:L/AV:N/A:N/C:H/I:L/PR:N/S:U/UI:N

Certain versions of Backup Exec from Veritas contain the following vulnerability:

An issue was discovered in Veritas Backup Exec before 21.2. It supports multiple authentication schemes: SHA authentication is one of these. This authentication scheme is no longer used in current versions of the product, but hadn't yet been disabled. An attacker could remotely exploit this scheme to gain unauthorized access to an Agent and execute privileged commands.

CVE-2021-27877 has been assigned by [email protected] to track the vulnerability - currently rated as CRITICAL severity.

CVSS3 Score: 9.8 - CRITICAL

Attack Vector ^ⓘ	Attack Complexity	Privileges Required	User Interaction
NETWORK	LOW	NONE	NONE
Scope	Confidentiality Impact	Integrity Impact	Availability Impact
UNCHANGED	HIGH	HIGH	HIGH

CVSS2 Score: 7.5 - HIGH

Access Vector^ⓘ	Access Complexity	Authentication
NETWORK	LOW	NONE
Confidentiality Impact	Integrity Impact	Availability Impact
PARTIAL	PARTIAL	PARTIAL

CVE References

Description	Tags ^ⓘ	Link
Veritas Backup Exec Agent Remote Code Execution ≈ Packet Storm	packetstormsecurity.com text/html	MISC packetstormsecurity.com/files/168506/Veritas-Backup-Exec-Agent-Remote-Code-Execution.html
Security Advisory for Backup Exec version 21.2 \| Veritas™	Vendor Advisory www.veritas.com text/html	MISC www.veritas.com/content/support/en_US/security/VTS21-001#issue1

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There are currently no QIDs associated with this CVE

Known Affected Configurations (CPE V2.3)

Type	Vendor	Product	Version	Update	Edition	Language
Application	Veritas	Backup Exec	All	All	All	All
Application	Veritas	Backup Exec	All	All	All	All

cpe:2.3:a:veritas:backup_exec:*:*:*:*:*:*:*:*:
cpe:2.3:a:veritas:backup_exec:*:*:*:*:*:*:*:*:

No vendor comments have been submitted for this CVE

Social Mentions

Source	Title	Posted (UTC)
@RemotelyAlerts	Severity: ??? \| An issue was discovered in Veritas Backu... \| CVE-2021-27877 \| Link for more: alerts.remotelyrmm.com/CVE-2021-27877	2022-09-26 19:29:12