Backup
CVE-2020-8427
CRITICAL
Vulnerability Assessment
| Weakness |
CWE
OWASP Top 10:2025
A05:2025 - Injection
ASVS 5.0
V1 - Encoding and Sanitization Parameterized queries, prepared statements
MITRE ATT&CK
2 techniques across 2 tactics: Initial Access, Persistence The technique list with ATT&CK links and the kill-chain view is part of the Basic plan and up. |
| Impact | CVSS score of 9.8 (CRITICAL). Attack characteristics: network attack vector, low complexity, no privileges required, no user interaction not required. |
| Exploit ScenarioDerived | A remote attacker could execute arbitrary SQL commands against the database by sending crafted requests to the affected application. No authentication is required to exploit this vulnerability. |
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Alert meAnalysisAI
In Unitrends Backup before 10.4.1, an HTTP request parameter was not properly sanitized, allowing for SQL injection that resulted in an authentication bypass. Rated critical severity (CVSS 9.8), this vulnerability is remotely exploitable, no authentication required, low attack complexity. No vendor patch available.
RemediationAI
No vendor patch is available at time of analysis. Monitor vendor advisories for updates. Use parameterized queries/prepared statements. Never concatenate user input into SQL. Apply least-privilege database permissions.
Affects your stack
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Checking this CVE against your own stacks and servers is part of the Basic plan and up.
Technical ContextAI · show details
This vulnerability is classified as SQL Injection (CWE-89), which allows attackers to execute arbitrary SQL commands against the database. In Unitrends Backup before 10.4.1, an HTTP request parameter was not properly sanitized, allowing for SQL injection that resulted in an authentication bypass. Affected products include: Unitrends Backup. Version information: before 10.4.1.
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- Exploit and PoC references, threat intelligence from 22 sources
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Severity by source
AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
Primary rating from NVD · only source for this CVE.
CVSS VectorNVD
DescriptionNVD
In Unitrends Backup before 10.4.1, an HTTP request parameter was not properly sanitized, allowing for SQL injection that resulted in an authentication bypass.
Threat Intelligence Overview
NVD
CVE.org
EPSS
How this decision was reached
The engine reads each signal below and applies a fixed list of rules from top to bottom. The first rule that matches sets the recommended action – like a statement, every line is shown.
What every action level means
SSVC AssessmentENISA
Priority Score
Attack Technique
SQL injection exploits the way applications construct database queries by mixing user input directly into SQL statements.
Authentication bypass attacks exploit flaws in the verification mechanisms that control access to systems and applications.
Affected Products (CPE)NVD
It was discovered that the Unitrends Backup (UB) before 10.1.0 libbpext.so authentication could be bypassed with a SQL i
The bdisk.sys driver in COMODO Backup before 4.4.1.23 allows remote attackers to gain privileges via a crafted device ha
CloudBerry Backup v6.1.2.34 allows local privilege escalation via a Pre or Post backup action. Rated high severity (CVSS
Supsystic Backup 2.3.9 contains a local file inclusion vulnerability that allows unauthenticated attackers to read and d
An insecure file system permissions vulnerability in MSP360 Backup 4.3.1.115 allows a low privileged user to execute com
An insecure file system permissions vulnerability in MSP360 Backup 8.0 allows a low privileged user to execute commands
Veeam Backup for Microsoft Azure is vulnerable to Server-Side Request Forgery (SSRF). Rated high severity (CVSS 7.2), th
GitHub PoC
Exploit-DB