CyberSecBulletin
CVE-2023-47611NVD status: Modified

BGS5: Improper Privilege Management

Published Updated By the CyberSecBulletin desk

CVE-2023-47611 is a high-severity improper privilege management vulnerability in BGS5 from Telit Cinterion, with a CVSS 3.1 base score of 7.8 out of 10. It can be exploited with local access to the system by an attacker with a low-privileged account, without any action from a user. The record lists version 2.000 ARN 01.001.08 as the first without the flaw, so updating BGS5 to that release or later removes the exposure. There is no confirmed exploitation so far. EPSS estimates a 0.22% 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 BGS5 to 2.000 ARN 01.001.08 or a later version.
  2. Update EHS5-E to 4.013 ARN 01.000.06 or a later version.
  3. Update EHS5-US to 4.000 or a later version.

Affected products and versions

VendorProductAffected versionsFixed in
Telit CinterionBGS5before 2.000 ARN 01.001.082.000 ARN 01.001.08
Telit CinterionEHS5-Ebefore 4.013 ARN 01.000.064.013 ARN 01.000.06
Telit CinterionEHS5-USbefore 4.0004.000
Telit CinterionEHS5-US Rel.4before 4.013 ARN 01.000.064.013 ARN 01.000.06
Telit CinterionEHS6before 2.0002.000
Telit CinterionEHS6 Rel.2before 2.000 ARN 00.000.202.000 ARN 00.000.20
Telit CinterionEHS6 Rel.3before 3.001 ARN 00.000.493.001 ARN 00.000.49
Telit CinterionEHS6 Rel.4before 4.013 ARN 01.000.064.013 ARN 01.000.06
Telit CinterionEHS6-A Rel.4before 4.013 ARN 01.000.064.013 ARN 01.000.06
Telit CinterionEHS8before 3.011 ARN 00.000.603.011 ARN 00.000.60
Telit CinterionEHS8 Rel.4before 4.013 ARN 01.000.064.013 ARN 01.000.06
Telit CinterionELS61-AUSbefore 1.0001.000
Telit CinterionELS61-AUS Rel.1before 1.004 ARN 00.003.011.004 ARN 00.003.01
Telit CinterionELS61-AUS Rel.1 MRbefore 1.005 ARN 00.005.011.005 ARN 00.005.01
Telit CinterionELS61-Ebefore 1.0001.000
Telit CinterionELS61-E Rel.1before 1.000 ARN 00.030.011.000 ARN 00.030.01
Telit CinterionELS61-E Rel.1 MRbefore 1.000 ARN 00.032.021.000 ARN 00.032.02
Telit CinterionELS61-E Rel.2before 2.000 ARN 01.000.032.000 ARN 01.000.03
Telit CinterionELS61-E2 Rel.1before 1.000 ARN 00.026.011.000 ARN 00.026.01
Telit CinterionELS61-E2 Rel.1 MRbefore 1.000 ARN 00.032.021.000 ARN 00.032.02
Telit CinterionELS61-US Rel.1 MRbefore 1.01 ARN 00.028.011.01 ARN 00.028.01
Telit CinterionELS61-US Rel.2before 2.012 ARN 01.000.052.012 ARN 01.000.05
Telit CinterionELS81-Ebefore 4.0004.000
Telit CinterionELS81-E Rel.1before 4.000 ARN 01.000.054.000 ARN 01.000.05
Telit CinterionELS81-E Rel.1.1before 5.001 ARN 01.000.045.001 ARN 01.000.04

Version data comes from the organisation that assigned the CVE; 20 further products are omitted here. Confirm against the vendor advisory before deciding you are unaffected.

How the severity score breaks down

Attack vector
LocalThe attacker needs local access or must trick a user into running something.
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:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H. Scored by NVD.

Scoring systemScoreSeverityScored by
CVSS 3.17.8HighCNA (kaspersky.com)
CVSS 3.17.8HighNVD

Official description

A CWE-269: Improper Privilege Management vulnerability exists in Telit Cinterion BGS5, Telit Cinterion EHS5/6/8, Telit Cinterion PDS5/6/8, Telit Cinterion ELS61/81, Telit Cinterion PLS62 that could allow a local, low privileged attacker to elevate privileges to "manufacturer" level on the targeted system.

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. Record last changed materially (score, affected products, status or references).

References

Other vulnerabilities in BGS5

All BGS5 vulnerabilities

Recent Improper Privilege Management vulnerabilities

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