Veritas Backup Exec up to 21.1 SHA Authentication improper authentication

CVSS Meta Temp Score
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Current Exploit Price (≈)
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CTI Interest Score
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8.3$0-$5k0.00

Summaryinfo

A vulnerability was found in Veritas Backup Exec up to 21.1. It has been declared as critical. Affected is an unknown function of the component SHA Authentication. Executing a manipulation can lead to improper authentication. The identification of this vulnerability is CVE-2021-27877. The attack may be launched remotely. Furthermore, there is an exploit available. It is recommended to upgrade the affected component.

Detailsinfo

A vulnerability has been found in Veritas Backup Exec up to 21.1 (Backup Software) and classified as critical. This vulnerability affects some unknown processing of the component SHA Authentication. The manipulation with an unknown input leads to a improper authentication vulnerability. The CWE definition for the vulnerability is CWE-287. When an actor claims to have a given identity, the product does not prove or insufficiently proves that the claim is correct. As an impact it is known to affect confidentiality, integrity, and availability.

The weakness was shared 03/02/2021. The advisory is available at veritas.com. This vulnerability was named CVE-2021-27877. Technical details are unknown but a public exploit is available.

It is possible to download the exploit at packetstormsecurity.com. It is declared as attacked. This issue was added on 04/07/2023 to the CISA Known Exploited Vulnerabilities Catalog with a due date of 04/28/2023:

Apply updates per vendor instructions.

Upgrading to version 21.2 eliminates this vulnerability.

If you want to get best quality of vulnerability data, you may have to visit VulDB.

Productinfo

Type

Name

Version

License

CPE 2.3info

CPE 2.2info

CVSSv4info

VulDB Vector: 🔍
VulDB Reliability: 🔍

CVSSv3info

VulDB Meta Base Score: 8.4
VulDB Meta Temp Score: 8.3

VulDB Base Score: 7.3
VulDB Temp Score: 7.0
VulDB Vector: 🔍
VulDB Reliability: 🔍

NVD Base Score: 9.8
NVD Vector: 🔍

CNA Base Score: 8.2
CNA Vector (MITRE): 🔍

CVSSv2info

AVACAuCIA
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💳💳💳💳💳💳
💳💳💳💳💳💳
VectorComplexityAuthenticationConfidentialityIntegrityAvailability
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VulDB Base Score: 🔍
VulDB Temp Score: 🔍
VulDB Reliability: 🔍

NVD Base Score: 🔍

Exploitinginfo

Class: Improper authentication
CWE: CWE-287
CAPEC: 🔍
ATT&CK: 🔍

Physical: No
Local: No
Remote: Yes

Availability: 🔍
Access: Public
Status: Attacked
Download: 🔍

EPSS Score: 🔍
EPSS Percentile: 🔍

KEV Added: 🔍
KEV Due: 🔍
KEV Remediation: 🔍
KEV Ransomware: 🔍
KEV Notice: 🔍

Price Prediction: 🔍
Current Price Estimation: 🔍

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Threat Intelligenceinfo

Interest: 🔍
Active Actors: 🔍
Active APT Groups: 🔍

Countermeasuresinfo

Recommended: Upgrade
Status: 🔍

0-Day Time: 🔍

Upgrade: Veritas Backup Exec 21.2

Timelineinfo

03/01/2021 🔍
03/02/2021 +1 days 🔍
03/02/2021 +0 days 🔍
03/07/2025 +1466 days 🔍

Sourcesinfo

Advisory: veritas.com
Status: Confirmed

CVE: CVE-2021-27877 (🔍)
GCVE (CVE): GCVE-0-2021-27877
GCVE (VulDB): GCVE-100-170554
scip Labs: https://www.scip.ch/en/?labs.20161013

Entryinfo

Created: 03/02/2021 08:11
Updated: 03/07/2025 17:17
Changes: 03/02/2021 08:11 (38), 03/06/2021 07:48 (5), 03/06/2021 07:53 (1), 03/14/2021 09:37 (18), 04/28/2024 12:10 (28), 06/29/2024 14:20 (2), 09/27/2024 13:49 (2), 03/07/2025 17:17 (12)
Complete: 🔍
Cache ID: 216::103

If you want to get best quality of vulnerability data, you may have to visit VulDB.

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