CyberSecBulletin
CVE-2022-36769NVD status: Modified

Cloud Pak for Data: Unrestricted Upload of File with Dangerous Type

CVE-2022-36769 is a high-severity unrestricted upload of file with dangerous type vulnerability in Cloud Pak for Data from IBM, with a CVSS 3.1 base score of 7.2 out of 10. It can be exploited remotely over the network by an attacker with administrator privileges, without any action from a user. Affected Cloud Pak for Data versions: 4.5, 4.6. The record does not name a fixed version, so check the vendor advisory. There is no confirmed exploitation so far. EPSS estimates a 0.87% chance of exploitation within 30 days, higher than 59% of scored CVEs.

Next patch cycle

High severity with no evidence of exploitation so far.

What to do

  1. Check which version of Cloud Pak for Data you run against the affected versions below, and install the vendor's latest release.
  2. Read the advisory on exchange.xforce.ibmcloud.com for workarounds and exact fixed builds.

Affected products and versions

VendorProductAffected versionsFixed in
IBMCloud Pak for Data4.5, 4.6Not 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
HighAdministrator-level access is required first.
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:H/UI:N/S:U/C:H/I:H/A:H. Scored by NVD.

Scoring systemScoreSeverityScored by
CVSS 3.17.2HighCNA (us.ibm.com)
CVSS 3.17.2HighNVD

Official description

IBM Cloud Pak for Data 4.5 and 4.6 could allow a privileged user to upload malicious files of dangerous types that can be automatically processed within the product's environment. IBM X-Force ID: 232034.

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: none, automatable: no, technical impact: total).
  3. Record last changed materially (score, affected products, status or references).

References

Other vulnerabilities in Cloud Pak for Data

All Cloud Pak for Data vulnerabilities

Recent Unrestricted Upload of File with Dangerous Type vulnerabilities

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