What is the CVSS score of CVE-2021-3019?

CVE-2021-3019 has a CVSS 3.1 base score of 7.5 (High). CVSS vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N. EPSS exploitation probability: 19.0%.

Is there a public PoC exploit available for CVE-2021-3019?

Yes, a public proof-of-concept exploit is available for CVE-2021-3019. Prioritise patching immediately. EPSS: 19.0%.

Is there a patch available for CVE-2021-3019?

Yes, a patch is available for CVE-2021-3019. Update the affected software to the latest version immediately.

Lanproxy CVE-2021-3019

HIGH

Path Traversal (CWE-22)

2021-01-05 cve@mitre.org

Path Traversal Lanproxy

7.5

CVSS 3.1 · NVD

Severity by source

NVD PRIMARY

7.5 HIGH

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

Primary rating from NVD · only source for this CVE.

CVSS VectorNVD

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

Attack Vector

Network

Attack Complexity

Low

Privileges Required

None

User Interaction

None

Scope

Unchanged

Confidentiality

High

Integrity

None

Availability

None

Lifecycle Timeline

CVE Published

Jan 05, 2021 - 05:15 nvd

HIGH 7.5

DescriptionNVD

ffay lanproxy 0.1 allows Directory Traversal to read /../conf/config.properties to obtain credentials for a connection to the intranet.

AnalysisAI

ffay lanproxy 0.1 allows Directory Traversal to read /../conf/config.properties to obtain credentials for a connection to the intranet. Rated high severity (CVSS 7.5), this vulnerability is remotely exploitable, no authentication required, low attack complexity. Public exploit code available.

Technical ContextAI

This vulnerability is classified as Path Traversal (CWE-22), which allows attackers to access files and directories outside the intended path. ffay lanproxy 0.1 allows Directory Traversal to read /../conf/config.properties to obtain credentials for a connection to the intranet. Affected products include: Lanproxy Project Lanproxy.

RemediationAI

A vendor patch is available. Apply the latest security update as soon as possible. Validate and canonicalize file paths. Use chroot or sandboxing. Reject input containing path separators or '../' sequences.