commons-net-3.0.1.jar: 1 vulnerabilities (highest severity is: 6.5)

[mend-bolt-for-github[bot]]

Vulnerable Library - commons-net-3.0.1.jar

Apache Commons Net library contains a collection of network utilities and protocol implementations. Supported protocols include: Echo, Finger, FTP, NNTP, NTP, POP3(S), SMTP(S), Telnet, Whois

Library home page: http://www.apache.org/

Path to vulnerable library: /lib/commons-net-3.0.1.jar

Found in HEAD commit: bafe36287e51aaacdb1ab47c78bd429757cdc4f2

Vulnerabilities

CVE	Severity	CVSS	Dependency	Type	Fixed in (commons-net version)	Remediation Possible**
CVE-2021-37533	Medium	6.5	commons-net-3.0.1.jar	Direct	3.9.0	❌

**In some cases, Remediation PR cannot be created automatically for a vulnerability despite the availability of remediation

Details

CVE-2021-37533

### Vulnerable Library - commons-net-3.0.1.jar

Apache Commons Net library contains a collection of network utilities and protocol implementations. Supported protocols include: Echo, Finger, FTP, NNTP, NTP, POP3(S), SMTP(S), Telnet, Whois

Library home page: http://www.apache.org/

Path to vulnerable library: /lib/commons-net-3.0.1.jar

Dependency Hierarchy: - :x: **commons-net-3.0.1.jar** (Vulnerable Library)

Found in HEAD commit: bafe36287e51aaacdb1ab47c78bd429757cdc4f2

Found in base branch: main

### Vulnerability Details

Prior to Apache Commons Net 3.9.0, Net's FTP client trusts the host from PASV response by default. A malicious server can redirect the Commons Net code to use a different host, but the user has to connect to the malicious server in the first place. This may lead to leakage of information about services running on the private network of the client. The default in version 3.9.0 is now false to ignore such hosts, as cURL does. See https://issues.apache.org/jira/browse/NET-711.

Publish Date: 2022-12-03

URL: CVE-2021-37533

### CVSS 3 Score Details (6.5)

Base Score Metrics: - Exploitability Metrics: - Attack Vector: Network - Attack Complexity: Low - Privileges Required: None - User Interaction: Required - Scope: Unchanged - Impact Metrics: - Confidentiality Impact: High - Integrity Impact: None - Availability Impact: None

For more information on CVSS3 Scores, click here.

### Suggested Fix

Type: Upgrade version

Origin: https://www.cve.org/CVERecord?id=CVE-2021-37533

Release Date: 2022-12-03

Fix Resolution: 3.9.0

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