Veeam Backup & Replication prior 11.0.1.1261/12.0.0.1420 Service Port 9401 Veeam.Backup.Service.exe missing authentication

CVSS Meta Temp Score
CVSS is a standardized scoring system to determine possibilities of attacks. The Temp Score considers temporal factors like disclosure, exploit and countermeasures. The unique Meta Score calculates the average score of different sources to provide a normalized scoring system.
Current Exploit Price (≈)
Our analysts are monitoring exploit markets and are in contact with vulnerability brokers. The range indicates the observed or calculated exploit price to be seen on exploit markets. A good indicator to understand the monetary effort required for and the popularity of an attack.
CTI Interest Score
Our Cyber Threat Intelligence team is monitoring different web sites, mailing lists, exploit markets and social media networks. The CTI Interest Score identifies the interest of attackers and the security community for this specific vulnerability in real-time. A high score indicates an elevated risk to be targeted for this vulnerability.
6.4$0-$5k0.00

Summaryinfo

A vulnerability labeled as critical has been found in Veeam Backup & Replication. The affected element is an unknown function of the file Veeam.Backup.Service.exe of the component Service Port 9401. Executing a manipulation can lead to missing authentication. This vulnerability appears as CVE-2023-27532. In addition, an exploit is available. The affected component should be upgraded.

Detailsinfo

A vulnerability classified as critical was found in Veeam Backup & Replication (Backup Software). This vulnerability affects an unknown part of the file Veeam.Backup.Service.exe of the component Service Port 9401. The manipulation with an unknown input leads to a missing authentication vulnerability. The CWE definition for the vulnerability is CWE-306. The product does not perform any authentication for functionality that requires a provable user identity or consumes a significant amount of resources. As an impact it is known to affect confidentiality. CVE summarizes:

Vulnerability in Veeam Backup & Replication component allows encrypted credentials stored in the configuration database to be obtained. This may lead to gaining access to the backup infrastructure hosts.

The weakness was presented 03/11/2023 as kb4424. The advisory is available at veeam.com. This vulnerability was named CVE-2023-27532 since 03/02/2023. Technical details and also a exploit are known.

It is declared as attacked. This issue was added on 08/22/2023 to the CISA Known Exploited Vulnerabilities Catalog with a due date of 09/12/2023:

Apply mitigations per vendor instructions or discontinue use of the product if mitigations are unavailable.

Upgrading to version 11.0.1.1261 or 12.0.0.1420 eliminates this vulnerability. The upgrade is hosted for download at veeam.com.

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

Productinfo

Type

Vendor

Name

CPE 2.3info

CPE 2.2info

CVSSv4info

VulDB Vector: 🔍
VulDB Reliability: 🔍

CVSSv3info

VulDB Meta Base Score: 6.4
VulDB Meta Temp Score: 6.4

VulDB Base Score: 4.3
VulDB Temp Score: 4.1
VulDB Vector: 🔍
VulDB Reliability: 🔍

NVD Base Score: 7.5
NVD Vector: 🔍

CNA Base Score: 7.5
CNA Vector: 🔍

CVSSv2info

AVACAuCIA
💳💳💳💳💳💳
💳💳💳💳💳💳
💳💳💳💳💳💳
VectorComplexityAuthenticationConfidentialityIntegrityAvailability
UnlockUnlockUnlockUnlockUnlockUnlock
UnlockUnlockUnlockUnlockUnlockUnlock
UnlockUnlockUnlockUnlockUnlockUnlock

VulDB Base Score: 🔍
VulDB Temp Score: 🔍
VulDB Reliability: 🔍

Exploitinginfo

Class: Missing authentication
CWE: CWE-306 / CWE-287
CAPEC: 🔍
ATT&CK: 🔍

Physical: No
Local: No
Remote: Yes

Availability: 🔍
Status: Attacked

EPSS Score: 🔍
EPSS Percentile: 🔍

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

Price Prediction: 🔍
Current Price Estimation: 🔍

0-DayUnlockUnlockUnlockUnlock
TodayUnlockUnlockUnlockUnlock

Threat Intelligenceinfo

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

Countermeasuresinfo

Recommended: Upgrade
Status: 🔍

0-Day Time: 🔍

Upgrade: Backup & Replication 11.0.1.1261/12.0.0.1420

Timelineinfo

03/02/2023 🔍
03/11/2023 +9 days 🔍
03/11/2023 +0 days 🔍
01/29/2025 +690 days 🔍

Sourcesinfo

Advisory: kb4424
Status: Confirmed

CVE: CVE-2023-27532 (🔍)
GCVE (CVE): GCVE-0-2023-27532
GCVE (VulDB): GCVE-100-222778
scip Labs: https://www.scip.ch/en/?labs.20161013

Entryinfo

Created: 03/11/2023 08:09
Updated: 01/29/2025 02:04
Changes: 03/11/2023 08:09 (38), 03/11/2023 16:52 (10), 04/04/2023 08:58 (11), 04/29/2024 10:41 (26), 09/28/2024 16:14 (2), 01/29/2025 02:04 (11)
Complete: 🔍
Cache ID: 216::103

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

Discussion

 Anonymous User (+0)
3 years ago
Good afternoon,
it should be noted that the following cpe: cpe:2.3:a:veeam:backup__replication was used for the CVE-2023-27532 vulnerability, instead of cpe:veeam:backup_and_replication

Could you kindly correct?
Thank you very much
Best regards
CERT team
 VulDB Community Team3 years ago
Thank you. We have just updated the CPE of the entry.

◂ PreviousOverviewNext ▸

Do you want to use VulDB in your project?

Use the official API to access entries easily!