CyberSecBulletin
CVE-2022-2297NVD status: Modified

Clinics Patient Management System: Unrestricted Upload of File with Dangerous Type

CVE-2022-2297 is a high-severity unrestricted upload of file with dangerous type vulnerability in Clinics Patient Management System from SourceCodester, with a CVSS 3.1 base score of 8.8 out of 10. It can be exploited remotely over the network by an attacker with a low-privileged account, without any action from a user. Affected Clinics Patient Management System versions: 2.0. The record does not name a fixed version, so check the vendor advisory. There is no confirmed exploitation so far. EPSS estimates a 3.37% chance of exploitation within 30 days, higher than 89% of scored CVEs.

Next patch cycle

High severity with no evidence of exploitation so far.

What to do

  1. Check which version of Clinics Patient Management System you run against the affected versions below, and install the vendor's latest release.

Affected products and versions

VendorProductAffected versionsFixed in
SourceCodesterClinics Patient Management System2.0Not stated
Oretnom23Clinic's Patient Management System2.0Not stated

Version data comes from the organisation that assigned the CVE. Confirm against the vendor advisory before deciding you are unaffected.

How the severity score breaks down

Attack vector
NetworkCan be exploited remotely over a network, including the internet.
Attack complexity
LowNo special conditions are needed; the attack works reliably.
Privileges required
LowA basic user account is enough.
User interaction
NoneNo action by a victim is required.
Scope
UnchangedImpact stays within the vulnerable component.
Confidentiality
HighAll data handled by the component can be read.
Integrity
HighData or code can be modified at will.
Availability
HighThe component can be taken down completely.

Vector: CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H. Scored by NVD.

Scoring systemScoreSeverityScored by
CVSS 3.16.3MediumCNA (vuldb.com)
CVSS 3.18.8HighNVD
CVSS 2.06.5MediumNVD

Official description

A vulnerability, which was classified as critical, was found in SourceCodester Clinics Patient Management System 2.0. Affected is an unknown function of the file /pms/update_user.php?user_id=1. The manipulation of the argument profile_picture with the input <?php phpinfo();?> leads to unrestricted upload. It is possible to launch the attack remotely. The exploit has been disclosed to the public and may be used.

Source: the CVE record as published by its numbering authority, via NVD and CVE.org.

The underlying weakness: Unrestricted Upload of File with Dangerous Type

The product allows the upload or transfer of dangerous file types that are automatically processed within its environment.

How developers prevent this class of flaw

  • Generate a new, unique filename for an uploaded file instead of using the user-supplied filename, so that no external input is used at all.
  • When the set of acceptable objects, such as filenames or URLs, is limited or known, create a mapping from a set of fixed input values (such as numeric IDs) to the actual filenames or URLs, and reject all other inputs.
  • Consider storing the uploaded files outside of the web document root entirely. Then, use other mechanisms to deliver the files dynamically.

More Unrestricted Upload of File with Dangerous Type vulnerabilities (CWE-434)

Timeline

  1. CVE record published.
  2. CISA published its SSVC assessment (exploitation: poc, automatable: no, technical impact: partial).
  3. Record last changed materially (score, affected products, status or references).

References

Technical write-ups (may include proof of concept)

Other vulnerabilities in Clinics Patient Management System

All Clinics Patient Management System vulnerabilities

Recent Unrestricted Upload of File with Dangerous Type vulnerabilities

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