CyberSecBulletin
CVE-2023-28632NVD status: Modified

glpi: Improper Privilege Management

Published Updated By the CyberSecBulletin desk

CVE-2023-28632 is a high-severity improper privilege management vulnerability in glpi from GLPI Project, with a CVSS 3.1 base score of 8.1 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 glpi versions: >= 0.83, < 9.5.13; >= 10.0.0, < 10.0.7. The record does not name a fixed version, so check the vendor advisory. There is no confirmed exploitation so far. EPSS estimates a 0.68% chance of exploitation within 30 days, higher than 53% of scored CVEs.

Next patch cycle

High severity with no evidence of exploitation so far.

What to do

  1. Check which version of glpi you run against the affected versions below, and install the vendor's latest release.
  2. Read the advisory on github.com for workarounds and exact fixed builds.

Affected products and versions

VendorProductAffected versionsFixed in
GLPI Projectglpi>= 0.83, < 9.5.13; >= 10.0.0, < 10.0.7Not 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
NoneAvailability is not affected.

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

Scoring systemScoreSeverityScored by
CVSS 3.18.1HighCNA (github.com)
CVSS 3.18.1HighNVD

Official description

GLPI is a free asset and IT management software package. Starting in version 0.83 and prior to versions 9.5.13 and 10.0.7, an authenticated user can modify emails of any user, and can therefore takeover another user account through the "forgotten password" feature. By modifying emails, the user can also receive sensitive data through GLPI notifications. Versions 9.5.13 and 10.0.7 contain a patch for this issue. As a workaround, account takeover can be prevented by deactivating all notifications related to `Forgotten password?` event. However, it will not prevent unauthorized modification of any user emails.

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

The underlying weakness: Improper Privilege Management

The product does not properly assign, modify, track, or check privileges for an actor, creating an unintended sphere of control for that actor.

How developers prevent this class of flaw

  • Very carefully manage the setting, management, and handling of privileges. Explicitly manage trust zones in the software.
  • Follow the principle of least privilege when assigning access rights to entities in a software system.
  • Consider following the principle of separation of privilege. Require multiple conditions to be met before permitting access to a system resource.

More Improper Privilege Management vulnerabilities (CWE-269)

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 glpi

All glpi vulnerabilities

Recent Improper Privilege Management vulnerabilities

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