Alcatel-Lucent_ALE_DeskPhones: Improper Privilege Management
CVE-2024-29150 is a high-severity improper privilege management vulnerability in Alcatel-Lucent_ALE_DeskPhones from ALE_International, 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 versions 86x8_NOE-R300.1.40.12.4180, 86x8_SIP-R200.1.01.10.728 as the first without the flaw, so updating Alcatel-Lucent_ALE_DeskPhones to one of those releases or later removes the exposure. There is no confirmed exploitation so far. EPSS estimates a 0.48% chance of exploitation within 30 days, which is low compared with other CVEs.
High severity with no evidence of exploitation so far.
What to do
- Update Alcatel-Lucent_ALE_DeskPhones to 86x8_NOE-R300.1.40.12.4180 or 86x8_SIP-R200.1.01.10.728, whichever matches your release line, or a later version.
Affected products and versions
| Vendor | Product | Affected versions | Fixed in |
|---|---|---|---|
| ALE_International | Alcatel-Lucent_ALE_DeskPhones | before 86x8_NOE-R300.1.40.12.4180; before 86x8_SIP-R200.1.01.10.728 | 86x8_NOE-R300.1.40.12.4180, 86x8_SIP-R200.1.01.10.728 |
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 CISA (ADP).
Official description
An issue was discovered in Alcatel-Lucent ALE NOE deskphones through 86x8_NOE-R300.1.40.12.4180 and SIP deskphones through 86x8_SIP-R200.1.01.10.728. Because of improper privilege management, an authenticated attacker is able to create symlinks to sensitive and protected data in locations that are used for debugging files. Given that the process of gathering debug logs is carried out with root privileges, any file referenced in the symlink is consequently written to the debug archive, thereby granting accessibility to the attacker.
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
- CVE record published.
- CISA published its SSVC assessment (exploitation: none, automatable: no, technical impact: total).
- Record last changed materially (score, affected products, status or references).
References
Other references
Recent Improper Privilege Management vulnerabilities
- 7.8 High severity
- 7.8 High severity
- 7.8 High severity
- 7.5 High severity
- 7.8 High severity
- 7.9 High severity
Spotted an error? Tell us.