PartKeepr v1.4.0 url attachment 'add parts' - SSRF

4.3

Medium

Discovered by 

Oscar Uribe

Offensive Team, Fluid Attacks

Summary

Full name

PartKeepr v1.4.0 url attachment 'add parts' - SSRF

Code name

State

Public

Release date

Jan 9, 2022

Affected product

PartKeepr

Affected version(s)

v1.4.0

Vulnerability name

Server Side Request Forgery

Remotely exploitable

Yes

CVSS v3.1 vector string

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

CVSS v3.1 base score

4.3

Exploit available

No

Description

In PartKeepr versions up to and including 1.4.0, the functionality to upload attachments using a URL when creating a part does not validate that requests can be made to local ports, allowing an authenticated user to carry out SSRF attacks and port enumeration.

Proof of Concept

  • Go to 'Add Part'.

  • Click on 'Attachments'.

  • Click on 'Add'.

  • Fill the 'URL' field with an url using a local port "http://127.0.0.1:3306".

  • Click on 'Upload'.

  • Click on the uploaded file in order to download the file and see the content.

Exploit

There is no exploit for the vulnerability but can be manually exploited.

Mitigation

By 2022-01-04 there is not a patch resolving the issue.

References

Timeline

Vulnerability discovered

Jan 3, 2022

Vendor contacted

Jan 4, 2022

Public disclosure

Jan 9, 2022

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Fluid Attacks' solutions enable organizations to identify, prioritize, and remediate vulnerabilities in their software throughout the SDLC. Supported by AI, automated tools, and pentesters, Fluid Attacks accelerates companies' risk exposure mitigation and strengthens their cybersecurity posture.

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