What is the CVSS score of CVE-2021-23772?

CVE-2021-23772 has a CVSS 3.1 base score of 8.8 (High). CVSS vector: CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H. EPSS exploitation probability: 1.8%.

Is there a public PoC exploit available for CVE-2021-23772?

Yes, a public proof-of-concept exploit is available for CVE-2021-23772. Prioritise patching immediately. EPSS: 1.8%.

Is there a patch available for CVE-2021-23772?

Yes, a patch is available for CVE-2021-23772. Update the affected software to the latest version immediately.

Iris CVE-2021-23772

HIGH

Improper Link Resolution Before File Access (CWE-59)

2021-12-24 report@snyk.io

Information Disclosure Iris

8.8

CVSS 3.1 · NVD

Severity by source

NVD PRIMARY

8.8 HIGH

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

Primary rating from NVD · only source for this CVE.

CVSS VectorNVD

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

Attack Vector

Network

Attack Complexity

Low

Privileges Required

Low

User Interaction

None

Scope

Unchanged

Confidentiality

High

Integrity

High

Availability

High

Lifecycle Timeline

CVE Published

Dec 24, 2021 - 12:15 nvd

HIGH 8.8

DescriptionNVD

This affects all versions of package github.com/kataras/iris; all versions of package github.com/kataras/iris/v12. The unsafe handling of file names during upload using UploadFormFiles method may enable attackers to write to arbitrary locations outside the designated target folder.

AnalysisAI

This affects all versions of package github.com/kataras/iris; all versions of package github.com/kataras/iris/v12. Rated high severity (CVSS 8.8), this vulnerability is remotely exploitable, low attack complexity. Public exploit code available.

Technical ContextAI

This vulnerability is classified under CWE-59. This affects all versions of package github.com/kataras/iris; all versions of package github.com/kataras/iris/v12. The unsafe handling of file names during upload using UploadFormFiles method may enable attackers to write to arbitrary locations outside the designated target folder. Affected products include: Iris-Go Iris.

RemediationAI

A vendor patch is available. Apply the latest security update as soon as possible. Apply vendor patches when available. Implement network segmentation and monitoring as interim mitigations.