CyberSecBulletin
CVE-2022-43574NVD status: Modified

IBM Robotic Process Automation: Incorrect Default Permissions

CVE-2022-43574 is a high-severity incorrect default permissions vulnerability in IBM Robotic Process Automation, with a CVSS 3.1 base score of 7.5 out of 10. It can be exploited remotely over the network by an unauthenticated attacker, without any action from a user. Affected IBM Robotic Process Automation versions: "21.0.1, 21.0.2, 21.0.3, 21.0.4, and 21.0.5". The record does not name a fixed version, so check the vendor advisory. There is no confirmed exploitation so far. EPSS estimates a 0.56% chance of exploitation within 30 days, which is low compared with other CVEs.

Next patch cycle

High severity with no evidence of exploitation so far.

What to do

  1. Update Robotic Process Automation to 21.0.6 or a later version.
  2. Update Robotic Process Automation For Cloud Pak to 21.0.6 or a later version.
  3. Read the advisory on ibm.com for workarounds and exact fixed builds.
  4. Until you can update, restrict network access to the affected service so it is not reachable from untrusted networks.

Affected products and versions

VendorProductAffected versionsFixed in
IBM Robotic Process AutomationIBM Robotic Process Automation"21.0.1, 21.0.2, 21.0.3, 21.0.4, and 21.0.5"Not stated
IBMRobotic Process Automationbefore 21.0.621.0.6
IBMRobotic Process Automation For Cloud Pakbefore 21.0.621.0.6

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
NoneNo account or login is needed.
User interaction
NoneNo action by a victim is required.
Scope
UnchangedImpact stays within the vulnerable component.
Confidentiality
NoneNo data is disclosed.
Integrity
HighData or code can be modified at will.
Availability
NoneAvailability is not affected.

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

Scoring systemScoreSeverityScored by
CVSS 3.17.5HighNVD
CVSS 3.17.5HighCISA (ADP)

Official description

"IBM Robotic Process Automation 21.0.1, 21.0.2, 21.0.3, 21.0.4, and 21.0.5 is vulnerable to incorrect permission assignment which could allow access to application configurations. IBM X-Force ID: 238679."

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

The underlying weakness: Incorrect Default Permissions

During installation, installed file permissions are set to allow anyone to modify those files.

How developers prevent this class of flaw

  • The architecture needs to access and modification attributes for files to only those users who actually require those actions.
  • Compartmentalize the system to have safe areas where trust boundaries can be unambiguously drawn. Do not allow sensitive data to go outside of the trust boundary and always be careful when interfacing with a compartment outside of the safe area. Ensure that appropriate compartmentalization is built into the system design, and the compartmentalization allows for and reinforces privilege separation functionality. Architects and designers should rely on the principle of least privilege to decide the appropriate time to use privileges and the time to drop privileges.

More Incorrect Default Permissions vulnerabilities (CWE-276)

Timeline

  1. CVE record published.
  2. CISA published its SSVC assessment (exploitation: none, automatable: yes, technical impact: partial).
  3. Record last changed materially (score, affected products, status or references).

References

Recent Incorrect Default Permissions vulnerabilities

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