CyberSecBulletin
CVE-2023-42913NVD status: Modified

macOS: Insecure Storage of Sensitive Information

CVE-2023-42913 is a high-severity insecure storage of sensitive information vulnerability in macOS from Apple, 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. The record lists version 14.2 as the first without the flaw, so updating macOS to that release or later removes the exposure. There is no confirmed exploitation so far. EPSS estimates a 0.54% 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 macOS to 14.2 or a later version.
  2. Read the advisory on support.apple.com for workarounds and exact fixed builds.

Affected products and versions

VendorProductAffected versionsFixed in
ApplemacOSbefore 14.2; 14.0 up to, but not including, 14.214.2

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 3.18.8HighNVD
CVSS 3.18.8HighCISA (ADP)

Official description

This issue was addressed through improved state management. This issue is fixed in macOS Sonoma 14.2. Remote Login sessions may be able to obtain full disk access permissions.

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

The underlying weakness: Insecure Storage of Sensitive Information

The product stores sensitive information without properly limiting read or write access by unauthorized actors.

More Insecure Storage of Sensitive Information vulnerabilities (CWE-922)

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

Advisories

Other vulnerabilities in macOS

All macOS vulnerabilities

Recent Insecure Storage of Sensitive Information vulnerabilities

Spotted an error? Tell us.